371 files changed, 12390 insertions, 10156 deletions

diff --git a/system/application/config/index.html b/application/cache/index.html
index c942a79ce..c942a79ce 100755
--- a/system/application/config/index.html
+++ b/application/cache/index.html
diff --git a/system/application/config/.gitignore b/application/config/.gitignore
index cde8069e1..cde8069e1 100644
--- a/system/application/config/.gitignore
+++ b/application/config/.gitignore
diff --git a/system/application/config/example/.gitignore b/application/config/example/.gitignore
index f9be8dfe0..f9be8dfe0 100644
--- a/system/application/config/example/.gitignore
+++ b/application/config/example/.gitignore
diff --git a/system/application/config/example/autoload.php b/application/config/example/autoload.php
index 9cd7a4fce..e527bf5cc 100755
--- a/system/application/config/example/autoload.php
+++ b/application/config/example/autoload.php
@@ -18,9 +18,9 @@
 |
 | These are the things you can load automatically:
 |
-| 1. Libraries
-| 2. Helper files
-| 3. Plugins
+| 1. Packages
+| 2. Libraries
+| 3. Helper files
 | 4. Custom config files
 | 5. Language files
 | 6. Models
@@ -29,41 +29,42 @@
 
 /*
 | -------------------------------------------------------------------
-|  Auto-load Libraries
+|  Auto-load Packges
 | -------------------------------------------------------------------
-| These are the classes located in the system/libraries folder
-| or in your system/application/libraries folder.
-|
 | Prototype:
 |
-|	$autoload['libraries'] = array('database', 'session', 'xmlrpc');
+|  $autoload['packages'] = array(APPPATH.'third_party', '/usr/local/shared');
+|
 */
 
-$autoload['libraries'] = array('database');
+$autoload['packages'] = array(APPPATH.'third_party');
 
 
 /*
 | -------------------------------------------------------------------
-|  Auto-load Helper Files
+|  Auto-load Libraries
 | -------------------------------------------------------------------
+| These are the classes located in the system/libraries folder
+| or in your application/libraries folder.
+|
 | Prototype:
 |
-|	$autoload['helper'] = array('url', 'file');
+|	$autoload['libraries'] = array('database', 'session', 'xmlrpc');
 */
 
-$autoload['helper'] = array('url');
+$autoload['libraries'] = array('database');
 
 
 /*
 | -------------------------------------------------------------------
-|  Auto-load Plugins
+|  Auto-load Helper Files
 | -------------------------------------------------------------------
 | Prototype:
 |
-|	$autoload['plugin'] = array('captcha', 'js_calendar');
+|	$autoload['helper'] = array('url', 'file');
 */
 
-$autoload['plugin'] = array();
+$autoload['helper'] = array('url');
 
 
 /*
@@ -90,7 +91,7 @@ $autoload['config'] = array();
 |
 |	$autoload['language'] = array('lang1', 'lang2');
 |
-| NOTE: Do not include the "_lang" part of your file.  For example 
+| NOTE: Do not include the "_lang" part of your file.  For example
 | "codeigniter_lang.php" would be referenced as array('codeigniter');
 |
 */
@@ -111,6 +112,5 @@ $autoload['language'] = array();
 $autoload['model'] = array();
 
 
-
 /* End of file autoload.php */
-/* Location: ./system/application/config/autoload.php */
+/* Location: ./application/config/autoload.php */
\ No newline at end of file
diff --git a/system/application/config/example/config.php b/application/config/example/config.php
index bab0087b0..f7edc7bf6 100755
--- a/system/application/config/example/config.php
+++ b/application/config/example/config.php
@@ -10,6 +10,9 @@
 |
 |	http://example.com/
 |
+| If this is not set then CodeIgniter will guess the protocol, domain and
+| path to your installation.
+|
 */
 $config['base_url']	= '';
 
@@ -23,7 +26,7 @@ $config['base_url']	= '';
 | variable so that it is blank.
 |
 */
-$config['index_page'] = "index.php";
+$config['index_page'] = 'index.php';
 
 /*
 |--------------------------------------------------------------------------
@@ -31,7 +34,7 @@ $config['index_page'] = "index.php";
 |--------------------------------------------------------------------------
 |
 | This item determines which server global should be used to retrieve the
-| URI string.  The default setting of "AUTO" works for most servers.
+| URI string.  The default setting of 'AUTO' works for most servers.
 | If your links do not seem to work, try one of the other delicious flavors:
 |
 | 'AUTO'			Default - auto detects
@@ -41,7 +44,7 @@ $config['index_page'] = "index.php";
 | 'ORIG_PATH_INFO'	Uses the ORIG_PATH_INFO
 |
 */
-$config['uri_protocol']	= "AUTO";
+$config['uri_protocol']	= 'AUTO';
 
 /*
 |--------------------------------------------------------------------------
@@ -54,7 +57,7 @@ $config['uri_protocol']	= "AUTO";
 | http://codeigniter.com/user_guide/general/urls.html
 */
 
-$config['url_suffix'] = "";
+$config['url_suffix'] = '';
 
 /*
 |--------------------------------------------------------------------------
@@ -66,7 +69,7 @@ $config['url_suffix'] = "";
 | than english.
 |
 */
-$config['language']	= "english";
+$config['language']	= 'english';
 
 /*
 |--------------------------------------------------------------------------
@@ -77,14 +80,14 @@ $config['language']	= "english";
 | that require a character set to be provided.
 |
 */
-$config['charset'] = "UTF-8";
+$config['charset'] = 'UTF-8';
 
 /*
 |--------------------------------------------------------------------------
 | Enable/Disable System Hooks
 |--------------------------------------------------------------------------
 |
-| If you would like to use the "hooks" feature you must enable it by
+| If you would like to use the 'hooks' feature you must enable it by
 | setting this variable to TRUE (boolean).  See the user guide for details.
 |
 */
@@ -134,12 +137,15 @@ $config['permitted_uri_chars'] = 'a-z 0-9~%.:_\-';
 | By default CodeIgniter uses search-engine friendly segment based URLs:
 | example.com/who/what/where/
 |
+| By default CodeIgniter enables access to the $_GET array.  If for some
+| reason you would like to disable it, set 'allow_get_array' to FALSE.
+|
 | You can optionally enable standard query string based URLs:
 | example.com?who=me&what=something&where=here
 |
 | Options are: TRUE or FALSE (boolean)
 |
-| The other items let you set the query string "words" that will
+| The other items let you set the query string 'words' that will
 | invoke your controllers and its functions:
 | example.com/index.php?c=controller&m=function
 |
@@ -148,17 +154,18 @@ $config['permitted_uri_chars'] = 'a-z 0-9~%.:_\-';
 | use segment based URLs.
 |
 */
+$config['allow_get_array']		= TRUE;
 $config['enable_query_strings'] = FALSE;
-$config['controller_trigger'] 	= 'c';
-$config['function_trigger'] 	= 'm';
-$config['directory_trigger'] 	= 'd'; // experimental not currently in use
+$config['controller_trigger']	= 'c';
+$config['function_trigger']		= 'm';
+$config['directory_trigger']	= 'd'; // experimental not currently in use
 
 /*
 |--------------------------------------------------------------------------
 | Error Logging Threshold
 |--------------------------------------------------------------------------
 |
-| If you have enabled error logging, you can set an error threshold to 
+| If you have enabled error logging, you can set an error threshold to
 | determine what gets logged. Threshold options are:
 | You can enable error logging by setting a threshold over zero. The
 | threshold determines what gets logged. Threshold options are:
@@ -181,7 +188,7 @@ $config['log_threshold'] = 0;
 |--------------------------------------------------------------------------
 |
 | Leave this BLANK unless you would like to set something other than the default
-| system/logs/ folder.  Use a full server path with trailing slash.
+| application/logs/ folder. Use a full server path with trailing slash.
 |
 */
 $config['log_path'] = '';
@@ -213,32 +220,39 @@ $config['cache_path'] = '';
 | Encryption Key
 |--------------------------------------------------------------------------
 |
-| If you use the Encryption class or the Sessions class with encryption
-| enabled you MUST set an encryption key.  See the user guide for info.
+| If you use the Encryption class or the Session class you
+| MUST set an encryption key.  See the user guide for info.
 |
 */
-$config['encryption_key'] = "";
+$config['encryption_key'] = '';
 
 /*
 |--------------------------------------------------------------------------
 | Session Variables
 |--------------------------------------------------------------------------
 |
-| 'session_cookie_name' = the name you want for the cookie
-| 'encrypt_sess_cookie' = TRUE/FALSE (boolean).  Whether to encrypt the cookie
-| 'session_expiration'  = the number of SECONDS you want the session to last.
-|  by default sessions last 7200 seconds (two hours).  Set to zero for no expiration.
-| 'time_to_update'		= how many seconds between CI refreshing Session Information
+| 'sess_cookie_name'		= the name you want for the cookie
+| 'sess_expiration'			= the number of SECONDS you want the session to last.
+|   by default sessions last 7200 seconds (two hours).  Set to zero for no expiration.
+| 'sess_expire_on_close'	= Whether to cause the session to expire automatically
+|   when the browser window is closed
+| 'sess_encrypt_cookie'		= Whether to encrypt the cookie
+| 'sess_use_database'		= Whether to save the session data to a database
+| 'sess_table_name'			= The name of the session database table
+| 'sess_match_ip'			= Whether to match the user's IP address when reading the session data
+| 'sess_match_useragent'	= Whether to match the User Agent when reading the session data
+| 'sess_time_to_update'		= how many seconds between CI refreshing Session Information
 |
 */
 $config['sess_cookie_name']		= 'ci_session';
 $config['sess_expiration']		= 7200;
+$config['sess_expire_on_close']	= FALSE;
 $config['sess_encrypt_cookie']	= FALSE;
 $config['sess_use_database']	= FALSE;
 $config['sess_table_name']		= 'ci_sessions';
 $config['sess_match_ip']		= FALSE;
 $config['sess_match_useragent']	= TRUE;
-$config['sess_time_to_update'] 	= 300;
+$config['sess_time_to_update']	= 300;
 
 /*
 |--------------------------------------------------------------------------
@@ -250,9 +264,9 @@ $config['sess_time_to_update'] 	= 300;
 | 'cookie_path'   =  Typically will be a forward slash
 |
 */
-$config['cookie_prefix']	= "";
-$config['cookie_domain']	= "";
-$config['cookie_path']		= "/";
+$config['cookie_prefix']	= '';
+$config['cookie_domain']	= '';
+$config['cookie_path']		= '/';
 
 /*
 |--------------------------------------------------------------------------
@@ -267,6 +281,23 @@ $config['global_xss_filtering'] = FALSE;
 
 /*
 |--------------------------------------------------------------------------
+| Cross Site Request Forgery
+|--------------------------------------------------------------------------
+| Enables a CSRF cookie token to be set. When set to TRUE, token will be
+| checked on a submitted form. If you are accepting user data, it is strongly
+| recommended CSRF protection be enabled.
+|
+| 'csrf_token_name' = The token name
+| 'csrf_cookie_name' = The cookie name
+| 'csrf_expire' = The number in seconds the token should expire.
+*/
+$config['csrf_protection'] = FALSE;
+$config['csrf_token_name'] = 'csrf_test_name';
+$config['csrf_cookie_name'] = 'csrf_cookie_name';
+$config['csrf_expire'] = 7200;
+
+/*
+|--------------------------------------------------------------------------
 | Output Compression
 |--------------------------------------------------------------------------
 |
@@ -279,7 +310,7 @@ $config['global_xss_filtering'] = FALSE;
 | means you are prematurely outputting something to your browser. It could
 | even be a line of whitespace at the end of one of your scripts.  For
 | compression to work, nothing can be sent before the output buffer is called
-| by the output class.  Do not "echo" any values with compression enabled.
+| by the output class.  Do not 'echo' any values with compression enabled.
 |
 */
 $config['compress_output'] = FALSE;
@@ -289,9 +320,9 @@ $config['compress_output'] = FALSE;
 | Master Time Reference
 |--------------------------------------------------------------------------
 |
-| Options are "local" or "gmt".  This pref tells the system whether to use
-| your server's local time as the master "now" reference, or convert it to
-| GMT.  See the "date helper" page of the user guide for information
+| Options are 'local' or 'gmt'.  This pref tells the system whether to use
+| your server's local time as the master 'now' reference, or convert it to
+| GMT.  See the 'date helper' page of the user guide for information
 | regarding date handling.
 |
 */
@@ -324,13 +355,12 @@ $config['rewrite_short_tags'] = FALSE;
 */
 $config['proxy_ips'] = '';
 
-
 /*
 |--------------------------------------------------------------------------
 | Filebin
 |-------------------------------------------------------------------------
 |
-| upload_path should NOT be readable/served by the server, but only by
+| upload_path should NOT be readable/served by the server, but only by 
 |   the script
 | sizes are in bytes
 | max_age in seconds
@@ -350,4 +380,4 @@ $config['small_upload_size'] = 1024*10; // 10KB
 $config['passwordsalt'] = ''; // just enter any string you want here
 
 /* End of file config.php */
-/* Location: ./system/application/config/config.php */
+/* Location: ./application/config/config.php */
diff --git a/system/application/config/example/constants.php b/application/config/example/constants.php
index 19c5ee788..1185dbca0 100755
--- a/system/application/config/example/constants.php
+++ b/application/config/example/constants.php
@@ -29,15 +29,15 @@ define('DIR_WRITE_MODE', 0777);
 |
 */
 
-define('FOPEN_READ', 							'rb');
+define('FOPEN_READ',							'rb');
 define('FOPEN_READ_WRITE',						'r+b');
-define('FOPEN_WRITE_CREATE_DESTRUCTIVE', 		'wb'); // truncates existing file data, use with care
-define('FOPEN_READ_WRITE_CREATE_DESTRUCTIVE', 	'w+b'); // truncates existing file data, use with care
-define('FOPEN_WRITE_CREATE', 					'ab');
-define('FOPEN_READ_WRITE_CREATE', 				'a+b');
-define('FOPEN_WRITE_CREATE_STRICT', 			'xb');
+define('FOPEN_WRITE_CREATE_DESTRUCTIVE',		'wb'); // truncates existing file data, use with care
+define('FOPEN_READ_WRITE_CREATE_DESTRUCTIVE',	'w+b'); // truncates existing file data, use with care
+define('FOPEN_WRITE_CREATE',					'ab');
+define('FOPEN_READ_WRITE_CREATE',				'a+b');
+define('FOPEN_WRITE_CREATE_STRICT',				'xb');
 define('FOPEN_READ_WRITE_CREATE_STRICT',		'x+b');
 
 
 /* End of file constants.php */
-/* Location: ./system/application/config/constants.php */
+/* Location: ./application/config/constants.php */
\ No newline at end of file
diff --git a/system/application/config/example/database.php b/application/config/example/database.php
index 2d6780e6a..4bf16f591 100755
--- a/system/application/config/example/database.php
+++ b/application/config/example/database.php
@@ -5,7 +5,7 @@
 | -------------------------------------------------------------------
 | This file will contain the settings needed to access your database.
 |
-| For complete instructions please consult the "Database Connection"
+| For complete instructions please consult the 'Database Connection'
 | page of the User Guide.
 |
 | -------------------------------------------------------------------
@@ -26,15 +26,19 @@
 |	['cachedir'] The path to the folder where cache files should be stored
 |	['char_set'] The character set used in communicating with the database
 |	['dbcollat'] The character collation used in communicating with the database
+|	['swap_pre'] A default table prefix that should be swapped with the dbprefix
+|	['autoinit'] Whether or not to automatically initialize the database.
+|	['stricton'] TRUE/FALSE - forces 'Strict Mode' connections
+|							- good for ensuring strict SQL while developing
 |
 | The $active_group variable lets you choose which connection group to
-| make active.  By default there is only one group (the "default" group).
+| make active.  By default there is only one group (the 'default' group).
 |
 | The $active_record variables lets you determine whether or not to load
 | the active record class
 */
 
-$active_group = "default";
+$active_group = 'default';
 $active_record = TRUE;
 
 $db['default']['hostname'] = "localhost";
@@ -52,4 +56,4 @@ $db['default']['dbcollat'] = "utf8_bin";
 
 
 /* End of file database.php */
-/* Location: ./system/application/config/database.php */
+/* Location: ./application/config/database.php */
\ No newline at end of file
diff --git a/system/application/config/example/doctypes.php b/application/config/example/doctypes.php
index 9d510abca..f7e1d19a2 100755
--- a/system/application/config/example/doctypes.php
+++ b/application/config/example/doctypes.php
@@ -12,4 +12,4 @@ $_doctypes = array(
 					);
 
 /* End of file doctypes.php */
-/* Location: application/config/doctypes.php */
\ No newline at end of file
+/* Location: ./application/config/doctypes.php */
\ No newline at end of file
diff --git a/application/config/example/foreign_chars.php b/application/config/example/foreign_chars.php
new file mode 100755
index 000000000..14b0d7373
--- /dev/null
+++ b/application/config/example/foreign_chars.php
@@ -0,0 +1,64 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/*
+| -------------------------------------------------------------------
+| Foreign Characters
+| -------------------------------------------------------------------
+| This file contains an array of foreign characters for transliteration
+| conversion used by the Text helper
+|
+*/
+$foreign_characters = array(
+	'/ä|æ|ǽ/' => 'ae',
+	'/ö|œ/' => 'oe',
+	'/ü/' => 'ue',
+	'/Ä/' => 'Ae',
+	'/Ü/' => 'Ue',
+	'/Ö/' => 'Oe',
+	'/À|Á|Â|Ã|Ä|Å|Ǻ|Ā|Ă|Ą|Ǎ/' => 'A',
+	'/à|á|â|ã|å|ǻ|ā|ă|ą|ǎ|ª/' => 'a',
+	'/Ç|Ć|Ĉ|Ċ|Č/' => 'C',
+	'/ç|ć|ĉ|ċ|č/' => 'c',
+	'/Ð|Ď|Đ/' => 'D',
+	'/ð|ď|đ/' => 'd',
+	'/È|É|Ê|Ë|Ē|Ĕ|Ė|Ę|Ě/' => 'E',
+	'/è|é|ê|ë|ē|ĕ|ė|ę|ě/' => 'e',
+	'/Ĝ|Ğ|Ġ|Ģ/' => 'G',
+	'/ĝ|ğ|ġ|ģ/' => 'g',
+	'/Ĥ|Ħ/' => 'H',
+	'/ĥ|ħ/' => 'h',
+	'/Ì|Í|Î|Ï|Ĩ|Ī|Ĭ|Ǐ|Į|İ/' => 'I',
+	'/ì|í|î|ï|ĩ|ī|ĭ|ǐ|į|ı/' => 'i',
+	'/Ĵ/' => 'J',
+	'/ĵ/' => 'j',
+	'/Ķ/' => 'K',
+	'/ķ/' => 'k',
+	'/Ĺ|Ļ|Ľ|Ŀ|Ł/' => 'L',
+	'/ĺ|ļ|ľ|ŀ|ł/' => 'l',
+	'/Ñ|Ń|Ņ|Ň/' => 'N',
+	'/ñ|ń|ņ|ň|ʼn/' => 'n',
+	'/Ò|Ó|Ô|Õ|Ō|Ŏ|Ǒ|Ő|Ơ|Ø|Ǿ/' => 'O',
+	'/ò|ó|ô|õ|ō|ŏ|ǒ|ő|ơ|ø|ǿ|º/' => 'o',
+	'/Ŕ|Ŗ|Ř/' => 'R',
+	'/ŕ|ŗ|ř/' => 'r',
+	'/Ś|Ŝ|Ş|Š/' => 'S',
+	'/ś|ŝ|ş|š|ſ/' => 's',
+	'/Ţ|Ť|Ŧ/' => 'T',
+	'/ţ|ť|ŧ/' => 't',
+	'/Ù|Ú|Û|Ũ|Ū|Ŭ|Ů|Ű|Ų|Ư|Ǔ|Ǖ|Ǘ|Ǚ|Ǜ/' => 'U',
+	'/ù|ú|û|ũ|ū|ŭ|ů|ű|ų|ư|ǔ|ǖ|ǘ|ǚ|ǜ/' => 'u',
+	'/Ý|Ÿ|Ŷ/' => 'Y',
+	'/ý|ÿ|ŷ/' => 'y',
+	'/Ŵ/' => 'W',
+	'/ŵ/' => 'w',
+	'/Ź|Ż|Ž/' => 'Z',
+	'/ź|ż|ž/' => 'z',
+	'/Æ|Ǽ/' => 'AE',
+	'/ß/'=> 'ss',
+	'/IJ/' => 'IJ',
+	'/ij/' => 'ij',
+	'/Œ/' => 'OE',
+	'/ƒ/' => 'f'
+);
+
+/* End of file foreign_chars.php */
+/* Location: ./application/config/foreign_chars.php */
\ No newline at end of file
diff --git a/system/application/config/example/hooks.php b/application/config/example/hooks.php
index 5e98a9b46..a4ad2be6d 100755
--- a/system/application/config/example/hooks.php
+++ b/application/config/example/hooks.php
@@ -13,4 +13,4 @@
 
 
 /* End of file hooks.php */
-/* Location: ./system/application/config/hooks.php */
\ No newline at end of file
+/* Location: ./application/config/hooks.php */
\ No newline at end of file
diff --git a/system/application/controllers/index.html b/application/config/example/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/application/controllers/index.html
+++ b/application/config/example/index.html
diff --git a/system/application/config/example/memcache.php b/application/config/example/memcache.php
index a5bc7e3a8..a5bc7e3a8 100644
--- a/system/application/config/example/memcache.php
+++ b/application/config/example/memcache.php
diff --git a/system/application/config/example/mimes.php b/application/config/example/mimes.php
index 438f610ce..de923c45a 100755
--- a/system/application/config/example/mimes.php
+++ b/application/config/example/mimes.php
@@ -10,12 +10,12 @@
 
 $mimes = array(	'hqx'	=>	'application/mac-binhex40',
 				'cpt'	=>	'application/mac-compactpro',
-				'csv'	=>	array('text/x-comma-separated-values', 'text/comma-separated-values', 'application/octet-stream', 'application/vnd.ms-excel', 'text/csv', 'application/csv', 'application/excel', 'application/vnd.msexcel'),
+				'csv'	=>	array('text/x-comma-separated-values', 'text/comma-separated-values', 'application/octet-stream', 'application/vnd.ms-excel', 'text/x-csv', 'text/csv', 'application/csv', 'application/excel', 'application/vnd.msexcel'),
 				'bin'	=>	'application/macbinary',
 				'dms'	=>	'application/octet-stream',
 				'lha'	=>	'application/octet-stream',
 				'lzh'	=>	'application/octet-stream',
-				'exe'	=>	'application/octet-stream',
+				'exe'	=>	array('application/octet-stream', 'application/x-msdownload'),
 				'class'	=>	'application/octet-stream',
 				'psd'	=>	'application/x-photoshop',
 				'so'	=>	'application/octet-stream',
@@ -48,7 +48,7 @@ $mimes = array(	'hqx'	=>	'application/mac-binhex40',
 				'swf'	=>	'application/x-shockwave-flash',
 				'sit'	=>	'application/x-stuffit',
 				'tar'	=>	'application/x-tar',
-				'tgz'	=>	'application/x-tar',
+				'tgz'	=>	array('application/x-tar', 'application/x-gzip-compressed'),
 				'xhtml'	=>	'application/xhtml+xml',
 				'xht'	=>	'application/xhtml+xml',
 				'zip'	=>  array('application/x-zip', 'application/zip', 'application/x-zip-compressed'),
@@ -56,7 +56,7 @@ $mimes = array(	'hqx'	=>	'application/mac-binhex40',
 				'midi'	=>	'audio/midi',
 				'mpga'	=>	'audio/mpeg',
 				'mp2'	=>	'audio/mpeg',
-				'mp3'	=>	array('audio/mpeg', 'audio/mpg'),
+				'mp3'	=>	array('audio/mpeg', 'audio/mpg', 'audio/mpeg3'),
 				'aif'	=>	'audio/x-aiff',
 				'aiff'	=>	'audio/x-aiff',
 				'aifc'	=>	'audio/x-aiff',
@@ -102,4 +102,4 @@ $mimes = array(	'hqx'	=>	'application/mac-binhex40',
 
 
 /* End of file mimes.php */
-/* Location: ./system/application/config/mimes.php */
\ No newline at end of file
+/* Location: ./application/config/mimes.php */
\ No newline at end of file
diff --git a/application/config/example/profiler.php b/application/config/example/profiler.php
new file mode 100755
index 000000000..f8a5b1a1e
--- /dev/null
+++ b/application/config/example/profiler.php
@@ -0,0 +1,17 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/*
+| -------------------------------------------------------------------------
+| Profiler Sections
+| -------------------------------------------------------------------------
+| This file lets you determine whether or not various sections of Profiler
+| data are displayed when the Profiler is enabled.
+| Please see the user guide for info:
+|
+|	http://codeigniter.com/user_guide/general/profiling.html
+|
+*/
+
+
+
+/* End of file profiler.php */
+/* Location: ./application/config/profiler.php */
\ No newline at end of file
diff --git a/system/application/config/example/routes.php b/application/config/example/routes.php
index 17e5927be..58a6162f0 100755
--- a/system/application/config/example/routes.php
+++ b/application/config/example/routes.php
@@ -9,7 +9,7 @@
 | and its corresponding controller class/method. The segments in a
 | URL normally follow this pattern:
 |
-| 	example.com/class/method/id/
+|	example.com/class/method/id/
 |
 | In some instances, however, you may want to remap this relationship
 | so that a different class/function is called than the one
@@ -23,7 +23,7 @@
 | RESERVED ROUTES
 | -------------------------------------------------------------------------
 |
-| There are two reserved routes:
+| There area two reserved routes:
 |
 |	$route['default_controller'] = 'welcome';
 |
@@ -31,12 +31,10 @@
 | URI contains no data. In the above example, the "welcome" class
 | would be loaded.
 |
-|	$route['scaffolding_trigger'] = 'scaffolding';
+|	$route['404_override'] = 'errors/page_missing';
 |
-| This route lets you set a "secret" word that will trigger the
-| scaffolding feature for added security. Note: Scaffolding must be
-| enabled in the controller in which you intend to use it.   The reserved 
-| routes must come before any wildcard or regular expression routes.
+| This route will tell the Router what URI segments to use if those provided
+| in the URL cannot be matched to a valid route.
 |
 */
 
@@ -44,6 +42,8 @@ $route['default_controller'] = "file";
 $route['scaffolding_trigger'] = "";
 $route['file/(:any)'] = "file/$1";
 $route['(:any)'] = "file/index/$1";
+$route['404_override'] = '';
+
 
 /* End of file routes.php */
-/* Location: ./system/application/config/routes.php */
+/* Location: ./application/config/routes.php */
\ No newline at end of file
diff --git a/system/application/config/example/smileys.php b/application/config/example/smileys.php
index 7f3aba550..25d28b2c4 100755
--- a/system/application/config/example/smileys.php
+++ b/application/config/example/smileys.php
@@ -7,7 +7,7 @@
 | Individual images can be used to replace multiple simileys.  For example:
 | :-) and :) use the same image replacement.
 |
-| Please see user guide for more info: 
+| Please see user guide for more info:
 | http://codeigniter.com/user_guide/helpers/smiley_helper.html
 |
 */
@@ -63,4 +63,4 @@ $smileys = array(
 		);
 
 /* End of file smileys.php */
-/* Location: ./system/application/config/smileys.php */
\ No newline at end of file
+/* Location: ./application/config/smileys.php */
\ No newline at end of file
diff --git a/system/application/config/example/user_agents.php b/application/config/example/user_agents.php
index c01b2767d..e2d3c3af0 100755
--- a/system/application/config/example/user_agents.php
+++ b/application/config/example/user_agents.php
@@ -48,6 +48,8 @@ $platforms = array (
 // The order of this array should NOT be changed. Many browsers return
 // multiple browser types so we want to identify the sub-type first.
 $browsers = array(
+					'Flock'				=> 'Flock',
+					'Chrome'			=> 'Chrome',
 					'Opera'				=> 'Opera',
 					'MSIE'				=> 'Internet Explorer',
 					'Internet Explorer'	=> 'Internet Explorer',
@@ -59,8 +61,8 @@ $browsers = array(
 					'Camino'			=> 'Camino',
 					'Netscape'			=> 'Netscape',
 					'OmniWeb'			=> 'OmniWeb',
-					'Mozilla'			=> 'Mozilla',
 					'Safari'			=> 'Safari',
+					'Mozilla'			=> 'Mozilla',
 					'Konqueror'			=> 'Konqueror',
 					'icab'				=> 'iCab',
 					'Lynx'				=> 'Lynx',
@@ -92,6 +94,7 @@ $mobiles = array(
 					'nokia'				=> "Nokia",
 					'palm'				=> "Palm",
 					'iphone'			=> "Apple iPhone",
+					'ipad'				=> "iPad",
 					'ipod'				=> "Apple iPod Touch",
 					'sony'				=> "Sony Ericsson",
 					'ericsson'			=> "Sony Ericsson",
@@ -111,7 +114,7 @@ $mobiles = array(
 					'benq'				=> "BenQ",
 					'ipaq'				=> "HP iPaq",
 					'mot-'				=> "Motorola",
-					'playstation portable' 	=> "PlayStation Portable",
+					'playstation portable'	=> "PlayStation Portable",
 					'hiptop'			=> "Danger Hiptop",
 					'nec-'				=> "NEC",
 					'panasonic'			=> "Panasonic",
@@ -124,7 +127,7 @@ $mobiles = array(
 
 					// Operating Systems
 					'symbian'				=> "Symbian",
-					'SymbianOS'				=> "SymbianOS", 
+					'SymbianOS'				=> "SymbianOS",
 					'elaine'				=> "Palm",
 					'palm'					=> "Palm",
 					'series60'				=> "Symbian S60",
@@ -149,7 +152,7 @@ $mobiles = array(
 
 					// Fallback
 					'mobile'				=> "Generic Mobile",
-					'wireless' 				=> "Generic Mobile",
+					'wireless'				=> "Generic Mobile",
 					'j2me'					=> "Generic Mobile",
 					'midp'					=> "Generic Mobile",
 					'cldc'					=> "Generic Mobile",
@@ -172,4 +175,4 @@ $robots = array(
 				);
 
 /* End of file user_agents.php */
-/* Location: ./system/application/config/user_agents.php */
\ No newline at end of file
+/* Location: ./application/config/user_agents.php */
\ No newline at end of file
diff --git a/system/application/errors/index.html b/application/config/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/application/errors/index.html
+++ b/application/config/index.html
diff --git a/system/application/controllers/file.php b/application/controllers/file.php
index a11255986..7d97913f2 100644
--- a/system/application/controllers/file.php
+++ b/application/controllers/file.php
@@ -7,11 +7,11 @@
  *
  */
 
-class File extends Controller {
+class File extends CI_Controller {
 
 	function __construct()
 	{
-		parent::Controller();
+		parent::__construct();
 		$this->load->helper(array('form', 'filebin'));
 		$this->load->model('file_mod');
 		$this->var->cli_client = false;
diff --git a/system/application/helpers/index.html b/application/controllers/index.html
index c942a79ce..c942a79ce 100644
--- a/system/application/helpers/index.html
+++ b/application/controllers/index.html
diff --git a/system/application/hooks/index.html b/application/core/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/application/hooks/index.html
+++ b/application/core/index.html
diff --git a/system/application/errors/error_404.php b/application/errors/error_404.php
index 1c513a205..1c513a205 100644
--- a/system/application/errors/error_404.php
+++ b/application/errors/error_404.php
diff --git a/system/application/errors/error_db.php b/application/errors/error_db.php
index 1ce52dfc9..1ce52dfc9 100644
--- a/system/application/errors/error_db.php
+++ b/application/errors/error_db.php
diff --git a/system/application/errors/error_general.php b/application/errors/error_general.php
index d8610702b..d8610702b 100644
--- a/system/application/errors/error_general.php
+++ b/application/errors/error_general.php
diff --git a/system/application/errors/error_php.php b/application/errors/error_php.php
index f085c2037..f085c2037 100644
--- a/system/application/errors/error_php.php
+++ b/application/errors/error_php.php
diff --git a/system/application/index.html b/application/errors/index.html
index c942a79ce..c942a79ce 100644
--- a/system/application/index.html
+++ b/application/errors/index.html
diff --git a/system/application/helpers/filebin_helper.php b/application/helpers/filebin_helper.php
index 3d6c30b76..3d6c30b76 100644
--- a/system/application/helpers/filebin_helper.php
+++ b/application/helpers/filebin_helper.php
diff --git a/system/application/language/english/index.html b/application/helpers/index.html
index c942a79ce..c942a79ce 100644
--- a/system/application/language/english/index.html
+++ b/application/helpers/index.html
diff --git a/system/application/libraries/index.html b/application/hooks/index.html
index c942a79ce..c942a79ce 100644
--- a/system/application/libraries/index.html
+++ b/application/hooks/index.html
diff --git a/system/application/models/index.html b/application/index.html
index c942a79ce..c942a79ce 100644
--- a/system/application/models/index.html
+++ b/application/index.html
diff --git a/system/application/views/index.html b/application/language/english/index.html
index c942a79ce..c942a79ce 100644
--- a/system/application/views/index.html
+++ b/application/language/english/index.html
diff --git a/system/application/libraries/MemcacheLibrary.php b/application/libraries/MemcacheLibrary.php
index dcc08b942..dcc08b942 100644
--- a/system/application/libraries/MemcacheLibrary.php
+++ b/application/libraries/MemcacheLibrary.php
diff --git a/system/application/libraries/contrib/aliased.php b/application/libraries/contrib/aliased.php
index 32bec9239..32bec9239 100644
--- a/system/application/libraries/contrib/aliased.php
+++ b/application/libraries/contrib/aliased.php
diff --git a/system/application/libraries/contrib/cssgen.php b/application/libraries/contrib/cssgen.php
index f746b00c3..f746b00c3 100644
--- a/system/application/libraries/contrib/cssgen.php
+++ b/application/libraries/contrib/cssgen.php
diff --git a/system/application/libraries/contrib/cssgen2.php b/application/libraries/contrib/cssgen2.php
index cc3c39cbf..cc3c39cbf 100644
--- a/system/application/libraries/contrib/cssgen2.php
+++ b/application/libraries/contrib/cssgen2.php
diff --git a/system/application/libraries/contrib/example.php b/application/libraries/contrib/example.php
index 32e6f0c75..32e6f0c75 100644
--- a/system/application/libraries/contrib/example.php
+++ b/application/libraries/contrib/example.php
diff --git a/system/application/libraries/contrib/langcheck.php b/application/libraries/contrib/langcheck.php
index a4ee4f65f..a4ee4f65f 100644
--- a/system/application/libraries/contrib/langcheck.php
+++ b/application/libraries/contrib/langcheck.php
diff --git a/system/application/libraries/geshi.php b/application/libraries/geshi.php
index f6796c9f6..f6796c9f6 100644
--- a/system/application/libraries/geshi.php
+++ b/application/libraries/geshi.php
diff --git a/system/application/libraries/geshi/4cs.php b/application/libraries/geshi/4cs.php
index 6ce702fbc..6ce702fbc 100644
--- a/system/application/libraries/geshi/4cs.php
+++ b/application/libraries/geshi/4cs.php
diff --git a/system/application/libraries/geshi/abap.php b/application/libraries/geshi/abap.php
index fa69c92f9..fa69c92f9 100644
--- a/system/application/libraries/geshi/abap.php
+++ b/application/libraries/geshi/abap.php
diff --git a/system/application/libraries/geshi/actionscript.php b/application/libraries/geshi/actionscript.php
index 394a463c4..394a463c4 100644
--- a/system/application/libraries/geshi/actionscript.php
+++ b/application/libraries/geshi/actionscript.php
diff --git a/system/application/libraries/geshi/actionscript3.php b/application/libraries/geshi/actionscript3.php
index 8449173e8..8449173e8 100644
--- a/system/application/libraries/geshi/actionscript3.php
+++ b/application/libraries/geshi/actionscript3.php
diff --git a/system/application/libraries/geshi/ada.php b/application/libraries/geshi/ada.php
index 4c112f0db..4c112f0db 100644
--- a/system/application/libraries/geshi/ada.php
+++ b/application/libraries/geshi/ada.php
diff --git a/system/application/libraries/geshi/apache.php b/application/libraries/geshi/apache.php
index a5b651bb6..a5b651bb6 100644
--- a/system/application/libraries/geshi/apache.php
+++ b/application/libraries/geshi/apache.php
diff --git a/system/application/libraries/geshi/applescript.php b/application/libraries/geshi/applescript.php
index 8a07d00b5..8a07d00b5 100644
--- a/system/application/libraries/geshi/applescript.php
+++ b/application/libraries/geshi/applescript.php
diff --git a/system/application/libraries/geshi/apt_sources.php b/application/libraries/geshi/apt_sources.php
index fe1711fdd..fe1711fdd 100644
--- a/system/application/libraries/geshi/apt_sources.php
+++ b/application/libraries/geshi/apt_sources.php
diff --git a/system/application/libraries/geshi/asm.php b/application/libraries/geshi/asm.php
index 49699b900..49699b900 100644
--- a/system/application/libraries/geshi/asm.php
+++ b/application/libraries/geshi/asm.php
diff --git a/system/application/libraries/geshi/asp.php b/application/libraries/geshi/asp.php
index 6e799a802..6e799a802 100644
--- a/system/application/libraries/geshi/asp.php
+++ b/application/libraries/geshi/asp.php
diff --git a/system/application/libraries/geshi/autohotkey.php b/application/libraries/geshi/autohotkey.php
index 1a6346340..1a6346340 100644
--- a/system/application/libraries/geshi/autohotkey.php
+++ b/application/libraries/geshi/autohotkey.php
diff --git a/system/application/libraries/geshi/autoit.php b/application/libraries/geshi/autoit.php
index e3185d063..e3185d063 100644
--- a/system/application/libraries/geshi/autoit.php
+++ b/application/libraries/geshi/autoit.php
diff --git a/system/application/libraries/geshi/avisynth.php b/application/libraries/geshi/avisynth.php
index 9031e8caa..9031e8caa 100644
--- a/system/application/libraries/geshi/avisynth.php
+++ b/application/libraries/geshi/avisynth.php
diff --git a/system/application/libraries/geshi/awk.php b/application/libraries/geshi/awk.php
index abecf72b5..abecf72b5 100644
--- a/system/application/libraries/geshi/awk.php
+++ b/application/libraries/geshi/awk.php
diff --git a/system/application/libraries/geshi/bash.php b/application/libraries/geshi/bash.php
index 0b1583b7b..0b1583b7b 100644
--- a/system/application/libraries/geshi/bash.php
+++ b/application/libraries/geshi/bash.php
diff --git a/system/application/libraries/geshi/basic4gl.php b/application/libraries/geshi/basic4gl.php
index 55be6dc34..55be6dc34 100644
--- a/system/application/libraries/geshi/basic4gl.php
+++ b/application/libraries/geshi/basic4gl.php
diff --git a/system/application/libraries/geshi/bf.php b/application/libraries/geshi/bf.php
index c69155e88..c69155e88 100644
--- a/system/application/libraries/geshi/bf.php
+++ b/application/libraries/geshi/bf.php
diff --git a/system/application/libraries/geshi/bibtex.php b/application/libraries/geshi/bibtex.php
index 82c13b8bc..82c13b8bc 100644
--- a/system/application/libraries/geshi/bibtex.php
+++ b/application/libraries/geshi/bibtex.php
diff --git a/system/application/libraries/geshi/blitzbasic.php b/application/libraries/geshi/blitzbasic.php
index c3871a21e..c3871a21e 100644
--- a/system/application/libraries/geshi/blitzbasic.php
+++ b/application/libraries/geshi/blitzbasic.php
diff --git a/system/application/libraries/geshi/bnf.php b/application/libraries/geshi/bnf.php
index db5cdb59d..db5cdb59d 100644
--- a/system/application/libraries/geshi/bnf.php
+++ b/application/libraries/geshi/bnf.php
diff --git a/system/application/libraries/geshi/boo.php b/application/libraries/geshi/boo.php
index df843797d..df843797d 100644
--- a/system/application/libraries/geshi/boo.php
+++ b/application/libraries/geshi/boo.php
diff --git a/system/application/libraries/geshi/c.php b/application/libraries/geshi/c.php
index bb6be43e1..bb6be43e1 100644
--- a/system/application/libraries/geshi/c.php
+++ b/application/libraries/geshi/c.php
diff --git a/system/application/libraries/geshi/c_mac.php b/application/libraries/geshi/c_mac.php
index 6ead4ae15..6ead4ae15 100644
--- a/system/application/libraries/geshi/c_mac.php
+++ b/application/libraries/geshi/c_mac.php
diff --git a/system/application/libraries/geshi/caddcl.php b/application/libraries/geshi/caddcl.php
index 27474627e..27474627e 100644
--- a/system/application/libraries/geshi/caddcl.php
+++ b/application/libraries/geshi/caddcl.php
diff --git a/system/application/libraries/geshi/cadlisp.php b/application/libraries/geshi/cadlisp.php
index 5061c79e4..5061c79e4 100644
--- a/system/application/libraries/geshi/cadlisp.php
+++ b/application/libraries/geshi/cadlisp.php
diff --git a/system/application/libraries/geshi/cfdg.php b/application/libraries/geshi/cfdg.php
index 8d03b89df..8d03b89df 100644
--- a/system/application/libraries/geshi/cfdg.php
+++ b/application/libraries/geshi/cfdg.php
diff --git a/system/application/libraries/geshi/cfm.php b/application/libraries/geshi/cfm.php
index cdb7bf32c..cdb7bf32c 100644
--- a/system/application/libraries/geshi/cfm.php
+++ b/application/libraries/geshi/cfm.php
diff --git a/system/application/libraries/geshi/cil.php b/application/libraries/geshi/cil.php
index 4ca93ecb0..4ca93ecb0 100644
--- a/system/application/libraries/geshi/cil.php
+++ b/application/libraries/geshi/cil.php
diff --git a/system/application/libraries/geshi/clojure.php b/application/libraries/geshi/clojure.php
index b970deea8..b970deea8 100644
--- a/system/application/libraries/geshi/clojure.php
+++ b/application/libraries/geshi/clojure.php
diff --git a/system/application/libraries/geshi/cmake.php b/application/libraries/geshi/cmake.php
index a9cfaafdc..a9cfaafdc 100644
--- a/system/application/libraries/geshi/cmake.php
+++ b/application/libraries/geshi/cmake.php
diff --git a/system/application/libraries/geshi/cobol.php b/application/libraries/geshi/cobol.php
index 63abf3f09..63abf3f09 100644
--- a/system/application/libraries/geshi/cobol.php
+++ b/application/libraries/geshi/cobol.php
diff --git a/system/application/libraries/geshi/cpp-qt.php b/application/libraries/geshi/cpp-qt.php
index a96cd38af..a96cd38af 100644
--- a/system/application/libraries/geshi/cpp-qt.php
+++ b/application/libraries/geshi/cpp-qt.php
diff --git a/system/application/libraries/geshi/cpp.php b/application/libraries/geshi/cpp.php
index 7fb1da360..7fb1da360 100644
--- a/system/application/libraries/geshi/cpp.php
+++ b/application/libraries/geshi/cpp.php
diff --git a/system/application/libraries/geshi/csharp.php b/application/libraries/geshi/csharp.php
index aa166801d..aa166801d 100644
--- a/system/application/libraries/geshi/csharp.php
+++ b/application/libraries/geshi/csharp.php
diff --git a/system/application/libraries/geshi/css.php b/application/libraries/geshi/css.php
index 04313d6d8..04313d6d8 100644
--- a/system/application/libraries/geshi/css.php
+++ b/application/libraries/geshi/css.php
diff --git a/system/application/libraries/geshi/cuesheet.php b/application/libraries/geshi/cuesheet.php
index 2fd610c15..2fd610c15 100644
--- a/system/application/libraries/geshi/cuesheet.php
+++ b/application/libraries/geshi/cuesheet.php
diff --git a/system/application/libraries/geshi/d.php b/application/libraries/geshi/d.php
index f9157a514..f9157a514 100644
--- a/system/application/libraries/geshi/d.php
+++ b/application/libraries/geshi/d.php
diff --git a/system/application/libraries/geshi/dcs.php b/application/libraries/geshi/dcs.php
index daad329c3..daad329c3 100644
--- a/system/application/libraries/geshi/dcs.php
+++ b/application/libraries/geshi/dcs.php
diff --git a/system/application/libraries/geshi/delphi.php b/application/libraries/geshi/delphi.php
index 2b758d7db..2b758d7db 100644
--- a/system/application/libraries/geshi/delphi.php
+++ b/application/libraries/geshi/delphi.php
diff --git a/system/application/libraries/geshi/diff.php b/application/libraries/geshi/diff.php
index f1a4baf65..f1a4baf65 100644
--- a/system/application/libraries/geshi/diff.php
+++ b/application/libraries/geshi/diff.php
diff --git a/system/application/libraries/geshi/div.php b/application/libraries/geshi/div.php
index 5804bb727..5804bb727 100644
--- a/system/application/libraries/geshi/div.php
+++ b/application/libraries/geshi/div.php
diff --git a/system/application/libraries/geshi/dos.php b/application/libraries/geshi/dos.php
index c111e1b5e..c111e1b5e 100644
--- a/system/application/libraries/geshi/dos.php
+++ b/application/libraries/geshi/dos.php
diff --git a/system/application/libraries/geshi/dot.php b/application/libraries/geshi/dot.php
index 6e4df2fff..6e4df2fff 100644
--- a/system/application/libraries/geshi/dot.php
+++ b/application/libraries/geshi/dot.php
diff --git a/system/application/libraries/geshi/eiffel.php b/application/libraries/geshi/eiffel.php
index fa293c074..fa293c074 100644
--- a/system/application/libraries/geshi/eiffel.php
+++ b/application/libraries/geshi/eiffel.php
diff --git a/system/application/libraries/geshi/email.php b/application/libraries/geshi/email.php
index a902433bf..a902433bf 100644
--- a/system/application/libraries/geshi/email.php
+++ b/application/libraries/geshi/email.php
diff --git a/system/application/libraries/geshi/erlang.php b/application/libraries/geshi/erlang.php
index cb7f25bf8..cb7f25bf8 100644
--- a/system/application/libraries/geshi/erlang.php
+++ b/application/libraries/geshi/erlang.php
diff --git a/system/application/libraries/geshi/fo.php b/application/libraries/geshi/fo.php
index aa4567961..aa4567961 100644
--- a/system/application/libraries/geshi/fo.php
+++ b/application/libraries/geshi/fo.php
diff --git a/system/application/libraries/geshi/fortran.php b/application/libraries/geshi/fortran.php
index 7b390eda7..7b390eda7 100644
--- a/system/application/libraries/geshi/fortran.php
+++ b/application/libraries/geshi/fortran.php
diff --git a/system/application/libraries/geshi/freebasic.php b/application/libraries/geshi/freebasic.php
index faeee92f9..faeee92f9 100644
--- a/system/application/libraries/geshi/freebasic.php
+++ b/application/libraries/geshi/freebasic.php
diff --git a/system/application/libraries/geshi/fsharp.php b/application/libraries/geshi/fsharp.php
index 7743d3643..7743d3643 100644
--- a/system/application/libraries/geshi/fsharp.php
+++ b/application/libraries/geshi/fsharp.php
diff --git a/system/application/libraries/geshi/gambas.php b/application/libraries/geshi/gambas.php
index a848440df..a848440df 100644
--- a/system/application/libraries/geshi/gambas.php
+++ b/application/libraries/geshi/gambas.php
diff --git a/system/application/libraries/geshi/gdb.php b/application/libraries/geshi/gdb.php
index 10a35cd38..10a35cd38 100644
--- a/system/application/libraries/geshi/gdb.php
+++ b/application/libraries/geshi/gdb.php
diff --git a/system/application/libraries/geshi/genero.php b/application/libraries/geshi/genero.php
index 0b5611627..0b5611627 100644
--- a/system/application/libraries/geshi/genero.php
+++ b/application/libraries/geshi/genero.php
diff --git a/system/application/libraries/geshi/gettext.php b/application/libraries/geshi/gettext.php
index 10201bd1a..10201bd1a 100644
--- a/system/application/libraries/geshi/gettext.php
+++ b/application/libraries/geshi/gettext.php
diff --git a/system/application/libraries/geshi/glsl.php b/application/libraries/geshi/glsl.php
index 8f521bfc1..8f521bfc1 100644
--- a/system/application/libraries/geshi/glsl.php
+++ b/application/libraries/geshi/glsl.php
diff --git a/system/application/libraries/geshi/gml.php b/application/libraries/geshi/gml.php
index ec7cb5512..ec7cb5512 100644
--- a/system/application/libraries/geshi/gml.php
+++ b/application/libraries/geshi/gml.php
diff --git a/system/application/libraries/geshi/gnuplot.php b/application/libraries/geshi/gnuplot.php
index b4762156c..b4762156c 100644
--- a/system/application/libraries/geshi/gnuplot.php
+++ b/application/libraries/geshi/gnuplot.php
diff --git a/system/application/libraries/geshi/groovy.php b/application/libraries/geshi/groovy.php
index 0270d0135..0270d0135 100644
--- a/system/application/libraries/geshi/groovy.php
+++ b/application/libraries/geshi/groovy.php
diff --git a/system/application/libraries/geshi/haskell.php b/application/libraries/geshi/haskell.php
index 024382deb..024382deb 100644
--- a/system/application/libraries/geshi/haskell.php
+++ b/application/libraries/geshi/haskell.php
diff --git a/system/application/libraries/geshi/hq9plus.php b/application/libraries/geshi/hq9plus.php
index 89af3bee8..89af3bee8 100644
--- a/system/application/libraries/geshi/hq9plus.php
+++ b/application/libraries/geshi/hq9plus.php
diff --git a/system/application/libraries/geshi/html4strict.php b/application/libraries/geshi/html4strict.php
index 08c7f30c7..08c7f30c7 100644
--- a/system/application/libraries/geshi/html4strict.php
+++ b/application/libraries/geshi/html4strict.php
diff --git a/system/application/libraries/geshi/idl.php b/application/libraries/geshi/idl.php
index 64472140a..64472140a 100644
--- a/system/application/libraries/geshi/idl.php
+++ b/application/libraries/geshi/idl.php
diff --git a/system/application/libraries/geshi/ini.php b/application/libraries/geshi/ini.php
index ae0e81ec4..ae0e81ec4 100644
--- a/system/application/libraries/geshi/ini.php
+++ b/application/libraries/geshi/ini.php
diff --git a/system/application/libraries/geshi/inno.php b/application/libraries/geshi/inno.php
index 6d1b97965..6d1b97965 100644
--- a/system/application/libraries/geshi/inno.php
+++ b/application/libraries/geshi/inno.php
diff --git a/system/application/libraries/geshi/intercal.php b/application/libraries/geshi/intercal.php
index 958f886ce..958f886ce 100644
--- a/system/application/libraries/geshi/intercal.php
+++ b/application/libraries/geshi/intercal.php
diff --git a/system/application/libraries/geshi/io.php b/application/libraries/geshi/io.php
index eb4d8646e..eb4d8646e 100644
--- a/system/application/libraries/geshi/io.php
+++ b/application/libraries/geshi/io.php
diff --git a/system/application/libraries/geshi/java.php b/application/libraries/geshi/java.php
index b4080f7ac..b4080f7ac 100644
--- a/system/application/libraries/geshi/java.php
+++ b/application/libraries/geshi/java.php
diff --git a/system/application/libraries/geshi/java5.php b/application/libraries/geshi/java5.php
index 4abffc663..4abffc663 100644
--- a/system/application/libraries/geshi/java5.php
+++ b/application/libraries/geshi/java5.php
diff --git a/system/application/libraries/geshi/javascript.php b/application/libraries/geshi/javascript.php
index 96c345477..96c345477 100644
--- a/system/application/libraries/geshi/javascript.php
+++ b/application/libraries/geshi/javascript.php
diff --git a/system/application/libraries/geshi/jquery.php b/application/libraries/geshi/jquery.php
index b4264cb1c..b4264cb1c 100644
--- a/system/application/libraries/geshi/jquery.php
+++ b/application/libraries/geshi/jquery.php
diff --git a/system/application/libraries/geshi/kixtart.php b/application/libraries/geshi/kixtart.php
index 3d37f8ce6..3d37f8ce6 100644
--- a/system/application/libraries/geshi/kixtart.php
+++ b/application/libraries/geshi/kixtart.php
diff --git a/system/application/libraries/geshi/klonec.php b/application/libraries/geshi/klonec.php
index 24f32dbc3..24f32dbc3 100644
--- a/system/application/libraries/geshi/klonec.php
+++ b/application/libraries/geshi/klonec.php
diff --git a/system/application/libraries/geshi/klonecpp.php b/application/libraries/geshi/klonecpp.php
index ad2844c6d..ad2844c6d 100644
--- a/system/application/libraries/geshi/klonecpp.php
+++ b/application/libraries/geshi/klonecpp.php
diff --git a/system/application/libraries/geshi/latex.php b/application/libraries/geshi/latex.php
index ae7f0b3c5..ae7f0b3c5 100644
--- a/system/application/libraries/geshi/latex.php
+++ b/application/libraries/geshi/latex.php
diff --git a/system/application/libraries/geshi/lisp.php b/application/libraries/geshi/lisp.php
index 3ca20fdc5..3ca20fdc5 100644
--- a/system/application/libraries/geshi/lisp.php
+++ b/application/libraries/geshi/lisp.php
diff --git a/system/application/libraries/geshi/locobasic.php b/application/libraries/geshi/locobasic.php
index e0cceea3d..e0cceea3d 100644
--- a/system/application/libraries/geshi/locobasic.php
+++ b/application/libraries/geshi/locobasic.php
diff --git a/system/application/libraries/geshi/logtalk.php b/application/libraries/geshi/logtalk.php
index 3321e0de4..3321e0de4 100644
--- a/system/application/libraries/geshi/logtalk.php
+++ b/application/libraries/geshi/logtalk.php
diff --git a/system/application/libraries/geshi/lolcode.php b/application/libraries/geshi/lolcode.php
index 26e486d3a..26e486d3a 100644
--- a/system/application/libraries/geshi/lolcode.php
+++ b/application/libraries/geshi/lolcode.php
diff --git a/system/application/libraries/geshi/lotusformulas.php b/application/libraries/geshi/lotusformulas.php
index 67fd4fa0a..67fd4fa0a 100644
--- a/system/application/libraries/geshi/lotusformulas.php
+++ b/application/libraries/geshi/lotusformulas.php
diff --git a/system/application/libraries/geshi/lotusscript.php b/application/libraries/geshi/lotusscript.php
index 5c1d61f92..5c1d61f92 100644
--- a/system/application/libraries/geshi/lotusscript.php
+++ b/application/libraries/geshi/lotusscript.php
diff --git a/system/application/libraries/geshi/lscript.php b/application/libraries/geshi/lscript.php
index 33cd0163d..33cd0163d 100644
--- a/system/application/libraries/geshi/lscript.php
+++ b/application/libraries/geshi/lscript.php
diff --git a/system/application/libraries/geshi/lsl2.php b/application/libraries/geshi/lsl2.php
index 8b62fc219..8b62fc219 100644
--- a/system/application/libraries/geshi/lsl2.php
+++ b/application/libraries/geshi/lsl2.php
diff --git a/system/application/libraries/geshi/lua.php b/application/libraries/geshi/lua.php
index 2a630b2c8..2a630b2c8 100644
--- a/system/application/libraries/geshi/lua.php
+++ b/application/libraries/geshi/lua.php
diff --git a/system/application/libraries/geshi/m68k.php b/application/libraries/geshi/m68k.php
index 9aae868af..9aae868af 100644
--- a/system/application/libraries/geshi/m68k.php
+++ b/application/libraries/geshi/m68k.php
diff --git a/system/application/libraries/geshi/make.php b/application/libraries/geshi/make.php
index 021265548..021265548 100644
--- a/system/application/libraries/geshi/make.php
+++ b/application/libraries/geshi/make.php
diff --git a/system/application/libraries/geshi/mapbasic.php b/application/libraries/geshi/mapbasic.php
index 74be1f673..74be1f673 100644
--- a/system/application/libraries/geshi/mapbasic.php
+++ b/application/libraries/geshi/mapbasic.php
diff --git a/system/application/libraries/geshi/matlab.php b/application/libraries/geshi/matlab.php
index f3ad34968..f3ad34968 100644
--- a/system/application/libraries/geshi/matlab.php
+++ b/application/libraries/geshi/matlab.php
diff --git a/system/application/libraries/geshi/mirc.php b/application/libraries/geshi/mirc.php
index a27c6c265..a27c6c265 100644
--- a/system/application/libraries/geshi/mirc.php
+++ b/application/libraries/geshi/mirc.php
diff --git a/system/application/libraries/geshi/mmix.php b/application/libraries/geshi/mmix.php
index efdb932f1..efdb932f1 100644
--- a/system/application/libraries/geshi/mmix.php
+++ b/application/libraries/geshi/mmix.php
diff --git a/system/application/libraries/geshi/modula3.php b/application/libraries/geshi/modula3.php
index caff92788..caff92788 100644
--- a/system/application/libraries/geshi/modula3.php
+++ b/application/libraries/geshi/modula3.php
diff --git a/system/application/libraries/geshi/mpasm.php b/application/libraries/geshi/mpasm.php
index d97f0b17f..d97f0b17f 100644
--- a/system/application/libraries/geshi/mpasm.php
+++ b/application/libraries/geshi/mpasm.php
diff --git a/system/application/libraries/geshi/mxml.php b/application/libraries/geshi/mxml.php
index a2073d3ab..a2073d3ab 100644
--- a/system/application/libraries/geshi/mxml.php
+++ b/application/libraries/geshi/mxml.php
diff --git a/system/application/libraries/geshi/mysql.php b/application/libraries/geshi/mysql.php
index 3bc6f9504..3bc6f9504 100644
--- a/system/application/libraries/geshi/mysql.php
+++ b/application/libraries/geshi/mysql.php
diff --git a/system/application/libraries/geshi/newlisp.php b/application/libraries/geshi/newlisp.php
index ee2589a07..ee2589a07 100644
--- a/system/application/libraries/geshi/newlisp.php
+++ b/application/libraries/geshi/newlisp.php
diff --git a/system/application/libraries/geshi/nsis.php b/application/libraries/geshi/nsis.php
index d5f631101..d5f631101 100644
--- a/system/application/libraries/geshi/nsis.php
+++ b/application/libraries/geshi/nsis.php
diff --git a/system/application/libraries/geshi/oberon2.php b/application/libraries/geshi/oberon2.php
index 35152b55f..35152b55f 100644
--- a/system/application/libraries/geshi/oberon2.php
+++ b/application/libraries/geshi/oberon2.php
diff --git a/system/application/libraries/geshi/objc.php b/application/libraries/geshi/objc.php
index 084be7124..084be7124 100644
--- a/system/application/libraries/geshi/objc.php
+++ b/application/libraries/geshi/objc.php
diff --git a/system/application/libraries/geshi/ocaml-brief.php b/application/libraries/geshi/ocaml-brief.php
index d9e3124f0..d9e3124f0 100644
--- a/system/application/libraries/geshi/ocaml-brief.php
+++ b/application/libraries/geshi/ocaml-brief.php
diff --git a/system/application/libraries/geshi/ocaml.php b/application/libraries/geshi/ocaml.php
index a14d2dec1..a14d2dec1 100644
--- a/system/application/libraries/geshi/ocaml.php
+++ b/application/libraries/geshi/ocaml.php
diff --git a/system/application/libraries/geshi/oobas.php b/application/libraries/geshi/oobas.php
index b3a5a0b6d..b3a5a0b6d 100644
--- a/system/application/libraries/geshi/oobas.php
+++ b/application/libraries/geshi/oobas.php
diff --git a/system/application/libraries/geshi/oracle11.php b/application/libraries/geshi/oracle11.php
index 08c25b66d..08c25b66d 100644
--- a/system/application/libraries/geshi/oracle11.php
+++ b/application/libraries/geshi/oracle11.php
diff --git a/system/application/libraries/geshi/oracle8.php b/application/libraries/geshi/oracle8.php
index 5ac18786d..5ac18786d 100644
--- a/system/application/libraries/geshi/oracle8.php
+++ b/application/libraries/geshi/oracle8.php
diff --git a/system/application/libraries/geshi/pascal.php b/application/libraries/geshi/pascal.php
index 948c00ce4..948c00ce4 100644
--- a/system/application/libraries/geshi/pascal.php
+++ b/application/libraries/geshi/pascal.php
diff --git a/system/application/libraries/geshi/per.php b/application/libraries/geshi/per.php
index 06cf2e41b..06cf2e41b 100644
--- a/system/application/libraries/geshi/per.php
+++ b/application/libraries/geshi/per.php
diff --git a/system/application/libraries/geshi/perl.php b/application/libraries/geshi/perl.php
index 57b8971e8..57b8971e8 100644
--- a/system/application/libraries/geshi/perl.php
+++ b/application/libraries/geshi/perl.php
diff --git a/system/application/libraries/geshi/perl6.php b/application/libraries/geshi/perl6.php
index 1c04098c0..1c04098c0 100644
--- a/system/application/libraries/geshi/perl6.php
+++ b/application/libraries/geshi/perl6.php
diff --git a/system/application/libraries/geshi/php-brief.php b/application/libraries/geshi/php-brief.php
index ceaf423af..ceaf423af 100644
--- a/system/application/libraries/geshi/php-brief.php
+++ b/application/libraries/geshi/php-brief.php
diff --git a/system/application/libraries/geshi/php.php b/application/libraries/geshi/php.php
index 9b0bc822d..9b0bc822d 100644
--- a/system/application/libraries/geshi/php.php
+++ b/application/libraries/geshi/php.php
diff --git a/system/application/libraries/geshi/pic16.php b/application/libraries/geshi/pic16.php
index 88d4a6745..88d4a6745 100644
--- a/system/application/libraries/geshi/pic16.php
+++ b/application/libraries/geshi/pic16.php
diff --git a/system/application/libraries/geshi/pike.php b/application/libraries/geshi/pike.php
index e67975fe2..e67975fe2 100644
--- a/system/application/libraries/geshi/pike.php
+++ b/application/libraries/geshi/pike.php
diff --git a/system/application/libraries/geshi/pixelbender.php b/application/libraries/geshi/pixelbender.php
index d19754f3e..d19754f3e 100644
--- a/system/application/libraries/geshi/pixelbender.php
+++ b/application/libraries/geshi/pixelbender.php
diff --git a/system/application/libraries/geshi/plsql.php b/application/libraries/geshi/plsql.php
index 0779ca04f..0779ca04f 100644
--- a/system/application/libraries/geshi/plsql.php
+++ b/application/libraries/geshi/plsql.php
diff --git a/system/application/libraries/geshi/povray.php b/application/libraries/geshi/povray.php
index 80bf5a478..80bf5a478 100644
--- a/system/application/libraries/geshi/povray.php
+++ b/application/libraries/geshi/povray.php
diff --git a/system/application/libraries/geshi/powerbuilder.php b/application/libraries/geshi/powerbuilder.php
index e276d85ee..e276d85ee 100644
--- a/system/application/libraries/geshi/powerbuilder.php
+++ b/application/libraries/geshi/powerbuilder.php
diff --git a/system/application/libraries/geshi/powershell.php b/application/libraries/geshi/powershell.php
index fe8a5da07..fe8a5da07 100644
--- a/system/application/libraries/geshi/powershell.php
+++ b/application/libraries/geshi/powershell.php
diff --git a/system/application/libraries/geshi/progress.php b/application/libraries/geshi/progress.php
index 3824e7b0b..3824e7b0b 100644
--- a/system/application/libraries/geshi/progress.php
+++ b/application/libraries/geshi/progress.php
diff --git a/system/application/libraries/geshi/prolog.php b/application/libraries/geshi/prolog.php
index 1f35a1b82..1f35a1b82 100644
--- a/system/application/libraries/geshi/prolog.php
+++ b/application/libraries/geshi/prolog.php
diff --git a/system/application/libraries/geshi/properties.php b/application/libraries/geshi/properties.php
index 231dd6e8b..231dd6e8b 100644
--- a/system/application/libraries/geshi/properties.php
+++ b/application/libraries/geshi/properties.php
diff --git a/system/application/libraries/geshi/providex.php b/application/libraries/geshi/providex.php
index aaa02e797..aaa02e797 100644
--- a/system/application/libraries/geshi/providex.php
+++ b/application/libraries/geshi/providex.php
diff --git a/system/application/libraries/geshi/purebasic.php b/application/libraries/geshi/purebasic.php
index b644af3fe..b644af3fe 100644
--- a/system/application/libraries/geshi/purebasic.php
+++ b/application/libraries/geshi/purebasic.php
diff --git a/system/application/libraries/geshi/python.php b/application/libraries/geshi/python.php
index a482d6928..a482d6928 100644
--- a/system/application/libraries/geshi/python.php
+++ b/application/libraries/geshi/python.php
diff --git a/system/application/libraries/geshi/qbasic.php b/application/libraries/geshi/qbasic.php
index c83cb188e..c83cb188e 100644
--- a/system/application/libraries/geshi/qbasic.php
+++ b/application/libraries/geshi/qbasic.php
diff --git a/system/application/libraries/geshi/rails.php b/application/libraries/geshi/rails.php
index 777fdd814..777fdd814 100644
--- a/system/application/libraries/geshi/rails.php
+++ b/application/libraries/geshi/rails.php
diff --git a/system/application/libraries/geshi/rebol.php b/application/libraries/geshi/rebol.php
index 1a2e95824..1a2e95824 100644
--- a/system/application/libraries/geshi/rebol.php
+++ b/application/libraries/geshi/rebol.php
diff --git a/system/application/libraries/geshi/reg.php b/application/libraries/geshi/reg.php
index d70189cc9..d70189cc9 100644
--- a/system/application/libraries/geshi/reg.php
+++ b/application/libraries/geshi/reg.php
diff --git a/system/application/libraries/geshi/robots.php b/application/libraries/geshi/robots.php
index 82ff18f4f..82ff18f4f 100644
--- a/system/application/libraries/geshi/robots.php
+++ b/application/libraries/geshi/robots.php
diff --git a/system/application/libraries/geshi/rsplus.php b/application/libraries/geshi/rsplus.php
index 10fa5a89e..10fa5a89e 100644
--- a/system/application/libraries/geshi/rsplus.php
+++ b/application/libraries/geshi/rsplus.php
diff --git a/system/application/libraries/geshi/ruby.php b/application/libraries/geshi/ruby.php
index 57d379d66..57d379d66 100644
--- a/system/application/libraries/geshi/ruby.php
+++ b/application/libraries/geshi/ruby.php
diff --git a/system/application/libraries/geshi/sas.php b/application/libraries/geshi/sas.php
index 16617b58e..16617b58e 100644
--- a/system/application/libraries/geshi/sas.php
+++ b/application/libraries/geshi/sas.php
diff --git a/system/application/libraries/geshi/scala.php b/application/libraries/geshi/scala.php
index 5ebe9ed96..5ebe9ed96 100644
--- a/system/application/libraries/geshi/scala.php
+++ b/application/libraries/geshi/scala.php
diff --git a/system/application/libraries/geshi/scheme.php b/application/libraries/geshi/scheme.php
index dac7c6f06..dac7c6f06 100644
--- a/system/application/libraries/geshi/scheme.php
+++ b/application/libraries/geshi/scheme.php
diff --git a/system/application/libraries/geshi/scilab.php b/application/libraries/geshi/scilab.php
index 9bd0658db..9bd0658db 100644
--- a/system/application/libraries/geshi/scilab.php
+++ b/application/libraries/geshi/scilab.php
diff --git a/system/application/libraries/geshi/sdlbasic.php b/application/libraries/geshi/sdlbasic.php
index 1f1440bf5..1f1440bf5 100644
--- a/system/application/libraries/geshi/sdlbasic.php
+++ b/application/libraries/geshi/sdlbasic.php
diff --git a/system/application/libraries/geshi/smalltalk.php b/application/libraries/geshi/smalltalk.php
index 9bc351d8e..9bc351d8e 100644
--- a/system/application/libraries/geshi/smalltalk.php
+++ b/application/libraries/geshi/smalltalk.php
diff --git a/system/application/libraries/geshi/smarty.php b/application/libraries/geshi/smarty.php
index f59d9fbf3..f59d9fbf3 100644
--- a/system/application/libraries/geshi/smarty.php
+++ b/application/libraries/geshi/smarty.php
diff --git a/system/application/libraries/geshi/sql.php b/application/libraries/geshi/sql.php
index ea2965a8e..ea2965a8e 100644
--- a/system/application/libraries/geshi/sql.php
+++ b/application/libraries/geshi/sql.php
diff --git a/system/application/libraries/geshi/systemverilog.php b/application/libraries/geshi/systemverilog.php
index 832769f9e..832769f9e 100644
--- a/system/application/libraries/geshi/systemverilog.php
+++ b/application/libraries/geshi/systemverilog.php
diff --git a/system/application/libraries/geshi/tcl.php b/application/libraries/geshi/tcl.php
index 0b52a2687..0b52a2687 100644
--- a/system/application/libraries/geshi/tcl.php
+++ b/application/libraries/geshi/tcl.php
diff --git a/system/application/libraries/geshi/teraterm.php b/application/libraries/geshi/teraterm.php
index b4ac619df..b4ac619df 100644
--- a/system/application/libraries/geshi/teraterm.php
+++ b/application/libraries/geshi/teraterm.php
diff --git a/system/application/libraries/geshi/text.php b/application/libraries/geshi/text.php
index 24d3f10ee..24d3f10ee 100644
--- a/system/application/libraries/geshi/text.php
+++ b/application/libraries/geshi/text.php
diff --git a/system/application/libraries/geshi/thinbasic.php b/application/libraries/geshi/thinbasic.php
index 6a0b72f9f..6a0b72f9f 100644
--- a/system/application/libraries/geshi/thinbasic.php
+++ b/application/libraries/geshi/thinbasic.php
diff --git a/system/application/libraries/geshi/tsql.php b/application/libraries/geshi/tsql.php
index 4750997a3..4750997a3 100644
--- a/system/application/libraries/geshi/tsql.php
+++ b/application/libraries/geshi/tsql.php
diff --git a/system/application/libraries/geshi/typoscript.php b/application/libraries/geshi/typoscript.php
index be809e856..be809e856 100644
--- a/system/application/libraries/geshi/typoscript.php
+++ b/application/libraries/geshi/typoscript.php
diff --git a/system/application/libraries/geshi/vb.php b/application/libraries/geshi/vb.php
index 9849b3e86..9849b3e86 100644
--- a/system/application/libraries/geshi/vb.php
+++ b/application/libraries/geshi/vb.php
diff --git a/system/application/libraries/geshi/vbnet.php b/application/libraries/geshi/vbnet.php
index 683b744f9..683b744f9 100644
--- a/system/application/libraries/geshi/vbnet.php
+++ b/application/libraries/geshi/vbnet.php
diff --git a/system/application/libraries/geshi/verilog.php b/application/libraries/geshi/verilog.php
index 6fc469487..6fc469487 100644
--- a/system/application/libraries/geshi/verilog.php
+++ b/application/libraries/geshi/verilog.php
diff --git a/system/application/libraries/geshi/vhdl.php b/application/libraries/geshi/vhdl.php
index ea93cf87b..ea93cf87b 100644
--- a/system/application/libraries/geshi/vhdl.php
+++ b/application/libraries/geshi/vhdl.php
diff --git a/system/application/libraries/geshi/vim.php b/application/libraries/geshi/vim.php
index a95dc244c..a95dc244c 100644
--- a/system/application/libraries/geshi/vim.php
+++ b/application/libraries/geshi/vim.php
diff --git a/system/application/libraries/geshi/visualfoxpro.php b/application/libraries/geshi/visualfoxpro.php
index 4d9f649ce..4d9f649ce 100644
--- a/system/application/libraries/geshi/visualfoxpro.php
+++ b/application/libraries/geshi/visualfoxpro.php
diff --git a/system/application/libraries/geshi/visualprolog.php b/application/libraries/geshi/visualprolog.php
index 5c9bbd4d0..5c9bbd4d0 100644
--- a/system/application/libraries/geshi/visualprolog.php
+++ b/application/libraries/geshi/visualprolog.php
diff --git a/system/application/libraries/geshi/whitespace.php b/application/libraries/geshi/whitespace.php
index a27a7b920..a27a7b920 100644
--- a/system/application/libraries/geshi/whitespace.php
+++ b/application/libraries/geshi/whitespace.php
diff --git a/system/application/libraries/geshi/whois.php b/application/libraries/geshi/whois.php
index 019e91450..019e91450 100644
--- a/system/application/libraries/geshi/whois.php
+++ b/application/libraries/geshi/whois.php
diff --git a/system/application/libraries/geshi/winbatch.php b/application/libraries/geshi/winbatch.php
index 5b5dcc1df..5b5dcc1df 100644
--- a/system/application/libraries/geshi/winbatch.php
+++ b/application/libraries/geshi/winbatch.php
diff --git a/system/application/libraries/geshi/xml.php b/application/libraries/geshi/xml.php
index 608c99f00..608c99f00 100644
--- a/system/application/libraries/geshi/xml.php
+++ b/application/libraries/geshi/xml.php
diff --git a/system/application/libraries/geshi/xorg_conf.php b/application/libraries/geshi/xorg_conf.php
index cdb6c36c9..cdb6c36c9 100644
--- a/system/application/libraries/geshi/xorg_conf.php
+++ b/application/libraries/geshi/xorg_conf.php
diff --git a/system/application/libraries/geshi/xpp.php b/application/libraries/geshi/xpp.php
index 5f009ec8c..5f009ec8c 100644
--- a/system/application/libraries/geshi/xpp.php
+++ b/application/libraries/geshi/xpp.php
diff --git a/system/application/libraries/geshi/z80.php b/application/libraries/geshi/z80.php
index b41e80c74..b41e80c74 100644
--- a/system/application/libraries/geshi/z80.php
+++ b/application/libraries/geshi/z80.php
diff --git a/system/cache/index.html b/application/libraries/index.html
index c942a79ce..c942a79ce 100644
--- a/system/cache/index.html
+++ b/application/libraries/index.html
diff --git a/system/codeigniter/index.html b/application/logs/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/codeigniter/index.html
+++ b/application/logs/index.html
diff --git a/system/application/models/file_mod.php b/application/models/file_mod.php
index 48ae5696b..c85bfe56d 100644
--- a/system/application/models/file_mod.php
+++ b/application/models/file_mod.php
@@ -7,11 +7,11 @@
  *
  */
 
-class File_mod extends Model {
+class File_mod extends CI_Model {
 
 	function __construct()
 	{
-		parent::Model();
+		parent::__construct();
 	}
 
 	// Returns an unused ID
diff --git a/system/logs/index.html b/application/models/index.html
index c942a79ce..c942a79ce 100644
--- a/system/logs/index.html
+++ b/application/models/index.html
diff --git a/system/plugins/index.html b/application/third_party/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/plugins/index.html
+++ b/application/third_party/index.html
diff --git a/system/application/views/file/client.php b/application/views/file/client.php
index 0ebc20791..0ebc20791 100644
--- a/system/application/views/file/client.php
+++ b/application/views/file/client.php
diff --git a/system/application/views/file/delete_form.php b/application/views/file/delete_form.php
index 7d4f2329f..7d4f2329f 100644
--- a/system/application/views/file/delete_form.php
+++ b/application/views/file/delete_form.php
diff --git a/system/application/views/file/deleted.php b/application/views/file/deleted.php
index 865b5304a..865b5304a 100644
--- a/system/application/views/file/deleted.php
+++ b/application/views/file/deleted.php
diff --git a/system/application/views/file/footer.php b/application/views/file/footer.php
index eda863585..eda863585 100644
--- a/system/application/views/file/footer.php
+++ b/application/views/file/footer.php
diff --git a/system/application/views/file/header.php b/application/views/file/header.php
index f6073707a..f6073707a 100644
--- a/system/application/views/file/header.php
+++ b/application/views/file/header.php
diff --git a/system/application/views/file/html_footer.php b/application/views/file/html_footer.php
index ddc460a39..ddc460a39 100644
--- a/system/application/views/file/html_footer.php
+++ b/application/views/file/html_footer.php
diff --git a/system/application/views/file/html_header.php b/application/views/file/html_header.php
index 52ffab007..52ffab007 100644
--- a/system/application/views/file/html_header.php
+++ b/application/views/file/html_header.php
diff --git a/system/application/views/file/non_existent.php b/application/views/file/non_existent.php
index 9f4a79913..9f4a79913 100644
--- a/system/application/views/file/non_existent.php
+++ b/application/views/file/non_existent.php
diff --git a/system/application/views/file/show_url.php b/application/views/file/show_url.php
index e0e3dc8a6..e0e3dc8a6 100644
--- a/system/application/views/file/show_url.php
+++ b/application/views/file/show_url.php
diff --git a/system/application/views/file/too_big.php b/application/views/file/too_big.php
index aa5c42835..aa5c42835 100644
--- a/system/application/views/file/too_big.php
+++ b/application/views/file/too_big.php
diff --git a/system/application/views/file/upload_error.php b/application/views/file/upload_error.php
index e757b58c1..e757b58c1 100644
--- a/system/application/views/file/upload_error.php
+++ b/application/views/file/upload_error.php
diff --git a/system/application/views/file/upload_form.php b/application/views/file/upload_form.php
index 4b23783dd..4b23783dd 100644
--- a/system/application/views/file/upload_form.php
+++ b/application/views/file/upload_form.php
diff --git a/system/scaffolding/images/index.html b/application/views/index.html
index c942a79ce..c942a79ce 100644
--- a/system/scaffolding/images/index.html
+++ b/application/views/index.html
diff --git a/index.php b/index.php
index dc8ca6cf8..5bb53d2f2 100644..100755
--- a/index.php
+++ b/index.php
@@ -1,118 +1,166 @@
 <?php
+
 /*
-|---------------------------------------------------------------
-| PHP ERROR REPORTING LEVEL
-|---------------------------------------------------------------
-|
-| By default CI runs with error reporting set to ALL.  For security
-| reasons you are encouraged to change this when your site goes live.
-| For more info visit:  http://www.php.net/error_reporting
-|
-*/
-	error_reporting(E_ALL^E_NOTICE);
+ *---------------------------------------------------------------
+ * PHP ERROR REPORTING LEVEL
+ *---------------------------------------------------------------
+ *
+ * By default CI runs with error reporting set to ALL.  For security
+ * reasons you are encouraged to change this to 0 when your site goes live.
+ * For more info visit:  http://www.php.net/error_reporting
+ *
+ */
+	error_reporting(E_ALL);
 
 /*
-|---------------------------------------------------------------
-| SYSTEM FOLDER NAME
-|---------------------------------------------------------------
-|
-| This variable must contain the name of your "system" folder.
-| Include the path if the folder is not in the same  directory
-| as this file.
-|
-| NO TRAILING SLASH!
-|
-*/
-	$system_folder = "system";
+ *---------------------------------------------------------------
+ * SYSTEM FOLDER NAME
+ *---------------------------------------------------------------
+ *
+ * This variable must contain the name of your "system" folder.
+ * Include the path if the folder is not in the same  directory
+ * as this file.
+ *
+ */
+	$system_path = "system";
 
 /*
-|---------------------------------------------------------------
-| APPLICATION FOLDER NAME
-|---------------------------------------------------------------
-|
-| If you want this front controller to use a different "application"
-| folder then the default one you can set its name here. The folder 
-| can also be renamed or relocated anywhere on your server.
-| For more info please see the user guide:
-| http://codeigniter.com/user_guide/general/managing_apps.html
-|
-|
-| NO TRAILING SLASH!
-|
-*/
+ *---------------------------------------------------------------
+ * APPLICATION FOLDER NAME
+ *---------------------------------------------------------------
+ *
+ * If you want this front controller to use a different "application"
+ * folder then the default one you can set its name here. The folder
+ * can also be renamed or relocated anywhere on your server.  If
+ * you do, use a full server path. For more info please see the user guide:
+ * http://codeigniter.com/user_guide/general/managing_apps.html
+ *
+ * NO TRAILING SLASH!
+ *
+ */
 	$application_folder = "application";
 
 /*
-|===============================================================
-| END OF USER CONFIGURABLE SETTINGS
-|===============================================================
-*/
+ * --------------------------------------------------------------------
+ * DEFAULT CONTROLLER
+ * --------------------------------------------------------------------
+ *
+ * Normally you will set your default controller in the routes.php file.
+ * You can, however, force a custom routing by hard-coding a
+ * specific controller class/function here.  For most applications, you
+ * WILL NOT set your routing here, but it's an option for those
+ * special instances where you might want to override the standard
+ * routing in a specific front controller that shares a common CI installation.
+ *
+ * IMPORTANT:  If you set the routing here, NO OTHER controller will be
+ * callable. In essence, this preference limits your application to ONE
+ * specific controller.  Leave the function name blank if you need
+ * to call functions dynamically via the URI.
+ *
+ * Un-comment the $routing array below to use this feature
+ *
+ */
+	// The directory name, relative to the "controllers" folder.  Leave blank
+	// if your controller is not in a sub-folder within the "controllers" folder
+	// $routing['directory'] = '';
+
+	// The controller class file name.  Example:  Mycontroller.php
+	// $routing['controller'] = '';
+
+	// The controller function you wish to be called.
+	// $routing['function']	= '';
+
+
+/*
+ * -------------------------------------------------------------------
+ *  CUSTOM CONFIG VALUES
+ * -------------------------------------------------------------------
+ *
+ * The $assign_to_config array below will be passed dynamically to the
+ * config class when initialized. This allows you to set custom config
+ * items or override any default config values found in the config.php file.
+ * This can be handy as it permits you to share one application between
+ * multiple front controller files, with each file containing different
+ * config values.
+ *
+ * Un-comment the $assign_to_config array below to use this feature
+ *
+ */
+	// $assign_to_config['name_of_config_item'] = 'value of config item';
+
+
+
+// --------------------------------------------------------------------
+// END OF USER CONFIGURABLE SETTINGS.  DO NOT EDIT BELOW THIS LINE
+// --------------------------------------------------------------------
+
+
 
 
 /*
-|---------------------------------------------------------------
-| SET THE SERVER PATH
-|---------------------------------------------------------------
-|
-| Let's attempt to determine the full-server path to the "system"
-| folder in order to reduce the possibility of path problems.
-| Note: We only attempt this if the user hasn't specified a 
-| full server path.
-|
-*/
-if (strpos($system_folder, '/') === FALSE)
-{
-	if (function_exists('realpath') AND @realpath(dirname(__FILE__)) !== FALSE)
+ * ---------------------------------------------------------------
+ *  Resolve the system path for increased reliability
+ * ---------------------------------------------------------------
+ */
+	if (realpath($system_path) !== FALSE)
 	{
-		$system_folder = realpath(dirname(__FILE__)).'/'.$system_folder;
+		$system_path = realpath($system_path).'/';
+	}
+
+	// ensure there's a trailing slash
+	$system_path = rtrim($system_path, '/').'/';
+
+	// Is the system path correct?
+	if ( ! is_dir($system_path))
+	{
+		exit("Your system folder path does not appear to be set correctly. Please open the following file and correct this: ".pathinfo(__FILE__, PATHINFO_BASENAME));
 	}
-}
-else
-{
-	// Swap directory separators to Unix style for consistency
-	$system_folder = str_replace("\\", "/", $system_folder); 
-}
 
 /*
-|---------------------------------------------------------------
-| DEFINE APPLICATION CONSTANTS
-|---------------------------------------------------------------
-|
-| EXT		- The file extension.  Typically ".php"
-| SELF		- The name of THIS file (typically "index.php")
-| FCPATH	- The full server path to THIS file
-| BASEPATH	- The full server path to the "system" folder
-| APPPATH	- The full server path to the "application" folder
-|
-*/
-define('EXT', '.php');
-define('SELF', pathinfo(__FILE__, PATHINFO_BASENAME));
-define('FCPATH', str_replace(SELF, '', __FILE__));
-define('BASEPATH', $system_folder.'/');
-
-if (is_dir($application_folder))
-{
-	define('APPPATH', $application_folder.'/');
-}
-else
-{
-	if ($application_folder == '')
+ * -------------------------------------------------------------------
+ *  Now that we know the path, set the main path constants
+ * -------------------------------------------------------------------
+ */
+	// The name of THIS file
+	define('SELF', pathinfo(__FILE__, PATHINFO_BASENAME));
+
+	// The PHP file extension
+	define('EXT', '.php');
+
+	// Path to the system folder
+	define('BASEPATH', str_replace("\\", "/", $system_path));
+
+	// Path to the front controller (this file)
+	define('FCPATH', str_replace(SELF, '', __FILE__));
+
+	// Name of the "system folder"
+	define('SYSDIR', trim(strrchr(trim(BASEPATH, '/'), '/'), '/'));
+
+
+	// The path to the "application" folder
+	if (is_dir($application_folder))
 	{
-		$application_folder = 'application';
+		define('APPPATH', $application_folder.'/');
 	}
+	else
+	{
+		if ( ! is_dir(BASEPATH.$application_folder.'/'))
+		{
+			exit("Your application folder path does not appear to be set correctly. Please open the following file and correct this: ".SELF);
+		}
 
-	define('APPPATH', BASEPATH.$application_folder.'/');
-}
+		define('APPPATH', BASEPATH.$application_folder.'/');
+	}
 
 /*
-|---------------------------------------------------------------
-| LOAD THE FRONT CONTROLLER
-|---------------------------------------------------------------
-|
-| And away we go...
-|
-*/
-require_once BASEPATH.'codeigniter/CodeIgniter'.EXT;
+ * --------------------------------------------------------------------
+ * LOAD THE BOOTSTRAP FILE
+ * --------------------------------------------------------------------
+ *
+ * And away we go...
+ *
+ */
+require_once BASEPATH.'core/CodeIgniter'.EXT;
 
 /* End of file index.php */
 /* Location: ./index.php */
\ No newline at end of file
diff --git a/system/.htaccess b/system/.htaccess
index 8d2f25636..14249c50b 100644..100755
--- a/system/.htaccess
+++ b/system/.htaccess
@@ -1 +1 @@
-deny from all
+Deny from all
\ No newline at end of file
diff --git a/system/codeigniter/Base4.php b/system/codeigniter/Base4.php
deleted file mode 100644
index 3561c2564..000000000
--- a/system/codeigniter/Base4.php
+++ /dev/null
@@ -1,69 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.3
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * CI_BASE - For PHP 4
- *
- * This file is used only when CodeIgniter is being run under PHP 4.
- *
- * In order to allow CI to work under PHP 4 we had to make the Loader class
- * the parent of the Controller Base class.  It's the only way we can
- * enable functions like $this->load->library('email') to instantiate
- * classes that can then be used within controllers as $this->email->send()
- *
- * PHP 4 also has trouble referencing the CI super object within application
- * constructors since objects do not exist until the class is fully
- * instantiated.  Basically PHP 4 sucks...
- *
- * Since PHP 5 doesn't suffer from this problem so we load one of
- * two files based on the version of PHP being run.
- *
- * @package		CodeIgniter
- * @subpackage	codeigniter
- * @category	front-controller
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/
- */
- class CI_Base extends CI_Loader {
-
-	function CI_Base()
-	{
-		// This allows syntax like $this->load->foo() to work
-		parent::CI_Loader();
-		$this->load =& $this;
-		
-		// This allows resources used within controller constructors to work
-		global $OBJ;
-		$OBJ = $this->load; // Do NOT use a reference.
-	}
-}
-
-function &get_instance()
-{
-	global $CI, $OBJ;
-	
-	if (is_object($CI))
-	{
-		return $CI;
-	}
-	
-	return $OBJ->load;
-}
-
-
-/* End of file Base4.php */
-/* Location: ./system/codeigniter/Base4.php */
\ No newline at end of file
diff --git a/system/codeigniter/Base5.php b/system/codeigniter/Base5.php
deleted file mode 100644
index 5d944ae5a..000000000
--- a/system/codeigniter/Base5.php
+++ /dev/null
@@ -1,56 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.3
- * @filesource
- */
-
-
-// ------------------------------------------------------------------------
-
-/**
- * CI_BASE - For PHP 5
- *
- * This file contains some code used only when CodeIgniter is being
- * run under PHP 5.  It allows us to manage the CI super object more
- * gracefully than what is possible with PHP 4.
- *
- * @package		CodeIgniter
- * @subpackage	codeigniter
- * @category	front-controller
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/
- */
-
-class CI_Base {
-
-	private static $instance;
-
-	public function CI_Base()
-	{
-		self::$instance =& $this;
-	}
-
-	public static function &get_instance()
-	{
-		return self::$instance;
-	}
-}
-
-function &get_instance()
-{
-	return CI_Base::get_instance();
-}
-
-
-
-/* End of file Base5.php */
-/* Location: ./system/codeigniter/Base5.php */
\ No newline at end of file
diff --git a/system/codeigniter/CodeIgniter.php b/system/codeigniter/CodeIgniter.php
deleted file mode 100644
index 5d5bb144b..000000000
--- a/system/codeigniter/CodeIgniter.php
+++ /dev/null
@@ -1,280 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * System Front Controller
- *
- * Loads the base classes and executes the request.
- *
- * @package		CodeIgniter
- * @subpackage	codeigniter
- * @category	Front-controller
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/
- */
-
-// CI Version
-define('CI_VERSION',	'1.7.2');
-
-/*
- * ------------------------------------------------------
- *  Load the global functions
- * ------------------------------------------------------
- */
-require(BASEPATH.'codeigniter/Common'.EXT);
-
-/*
- * ------------------------------------------------------
- *  Load the compatibility override functions
- * ------------------------------------------------------
- */
-require(BASEPATH.'codeigniter/Compat'.EXT);
-
-/*
- * ------------------------------------------------------
- *  Load the framework constants
- * ------------------------------------------------------
- */
-require(APPPATH.'config/constants'.EXT);
-
-/*
- * ------------------------------------------------------
- *  Define a custom error handler so we can log PHP errors
- * ------------------------------------------------------
- */
-set_error_handler('_exception_handler');
-
-if ( ! is_php('5.3'))
-{
-	@set_magic_quotes_runtime(0); // Kill magic quotes
-}
-
-/*
- * ------------------------------------------------------
- *  Start the timer... tick tock tick tock...
- * ------------------------------------------------------
- */
-
-$BM =& load_class('Benchmark');
-$BM->mark('total_execution_time_start');
-$BM->mark('loading_time_base_classes_start');
-
-/*
- * ------------------------------------------------------
- *  Instantiate the hooks class
- * ------------------------------------------------------
- */
-
-$EXT =& load_class('Hooks');
-
-/*
- * ------------------------------------------------------
- *  Is there a "pre_system" hook?
- * ------------------------------------------------------
- */
-$EXT->_call_hook('pre_system');
-
-/*
- * ------------------------------------------------------
- *  Instantiate the base classes
- * ------------------------------------------------------
- */
-
-$CFG =& load_class('Config');
-$URI =& load_class('URI');
-$RTR =& load_class('Router');
-$OUT =& load_class('Output');
-
-/*
- * ------------------------------------------------------
- *	Is there a valid cache file?  If so, we're done...
- * ------------------------------------------------------
- */
-
-if ($EXT->_call_hook('cache_override') === FALSE)
-{
-	if ($OUT->_display_cache($CFG, $URI) == TRUE)
-	{
-		exit;
-	}
-}
-
-/*
- * ------------------------------------------------------
- *  Load the remaining base classes
- * ------------------------------------------------------
- */
-
-$IN		=& load_class('Input');
-$LANG	=& load_class('Language');
-
-/*
- * ------------------------------------------------------
- *  Load the app controller and local controller
- * ------------------------------------------------------
- *
- *  Note: Due to the poor object handling in PHP 4 we'll
- *  conditionally load different versions of the base
- *  class.  Retaining PHP 4 compatibility requires a bit of a hack.
- *
- *  Note: The Loader class needs to be included first
- *
- */
-if ( ! is_php('5.0.0'))
-{
-	load_class('Loader', FALSE);
-	require(BASEPATH.'codeigniter/Base4'.EXT);
-}
-else
-{
-	require(BASEPATH.'codeigniter/Base5'.EXT);
-}
-
-// Load the base controller class
-load_class('Controller', FALSE);
-
-// Load the local application controller
-// Note: The Router class automatically validates the controller path.  If this include fails it 
-// means that the default controller in the Routes.php file is not resolving to something valid.
-if ( ! file_exists(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().EXT))
-{
-	show_error('Unable to load your default controller.  Please make sure the controller specified in your Routes.php file is valid.');
-}
-
-include(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().EXT);
-
-// Set a mark point for benchmarking
-$BM->mark('loading_time_base_classes_end');
-
-
-/*
- * ------------------------------------------------------
- *  Security check
- * ------------------------------------------------------
- *
- *  None of the functions in the app controller or the
- *  loader class can be called via the URI, nor can
- *  controller functions that begin with an underscore
- */
-$class  = $RTR->fetch_class();
-$method = $RTR->fetch_method();
-
-if ( ! class_exists($class)
-	OR $method == 'controller'
-	OR strncmp($method, '_', 1) == 0
-	OR in_array(strtolower($method), array_map('strtolower', get_class_methods('Controller')))
-	)
-{
-	show_404("{$class}/{$method}");
-}
-
-/*
- * ------------------------------------------------------
- *  Is there a "pre_controller" hook?
- * ------------------------------------------------------
- */
-$EXT->_call_hook('pre_controller');
-
-/*
- * ------------------------------------------------------
- *  Instantiate the controller and call requested method
- * ------------------------------------------------------
- */
-
-// Mark a start point so we can benchmark the controller
-$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_start');
-
-$CI = new $class();
-
-// Is this a scaffolding request?
-if ($RTR->scaffolding_request === TRUE)
-{
-	if ($EXT->_call_hook('scaffolding_override') === FALSE)
-	{
-		$CI->_ci_scaffolding();
-	}
-}
-else
-{
-	/*
-	 * ------------------------------------------------------
-	 *  Is there a "post_controller_constructor" hook?
-	 * ------------------------------------------------------
-	 */
-	$EXT->_call_hook('post_controller_constructor');
-	
-	// Is there a "remap" function?
-	if (method_exists($CI, '_remap'))
-	{
-		$CI->_remap($method);
-	}
-	else
-	{
-		// is_callable() returns TRUE on some versions of PHP 5 for private and protected
-		// methods, so we'll use this workaround for consistent behavior
-		if ( ! in_array(strtolower($method), array_map('strtolower', get_class_methods($CI))))
-		{
-			show_404("{$class}/{$method}");
-		}
-
-		// Call the requested method.
-		// Any URI segments present (besides the class/function) will be passed to the method for convenience
-		call_user_func_array(array(&$CI, $method), array_slice($URI->rsegments, 2));
-	}
-}
-
-// Mark a benchmark end point
-$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_end');
-
-/*
- * ------------------------------------------------------
- *  Is there a "post_controller" hook?
- * ------------------------------------------------------
- */
-$EXT->_call_hook('post_controller');
-
-/*
- * ------------------------------------------------------
- *  Send the final rendered output to the browser
- * ------------------------------------------------------
- */
-
-if ($EXT->_call_hook('display_override') === FALSE)
-{
-	$OUT->_display();
-}
-
-/*
- * ------------------------------------------------------
- *  Is there a "post_system" hook?
- * ------------------------------------------------------
- */
-$EXT->_call_hook('post_system');
-
-/*
- * ------------------------------------------------------
- *  Close the DB connection if one exists
- * ------------------------------------------------------
- */
-if (class_exists('CI_DB') AND isset($CI->db))
-{
-	$CI->db->close();
-}
-
-
-/* End of file CodeIgniter.php */
-/* Location: ./system/codeigniter/CodeIgniter.php */
\ No newline at end of file
diff --git a/system/codeigniter/Common.php b/system/codeigniter/Common.php
deleted file mode 100644
index 3b84ffcc1..000000000
--- a/system/codeigniter/Common.php
+++ /dev/null
@@ -1,421 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
-* Determines if the current version of PHP is greater then the supplied value
-*
-* Since there are a few places where we conditionally test for PHP > 5
-* we'll set a static variable.
-*
-* @access	public
-* @param	string
-* @return	bool
-*/
-function is_php($version = '5.0.0')
-{
-	static $_is_php;
-	$version = (string)$version;
-	
-	if ( ! isset($_is_php[$version]))
-	{
-		$_is_php[$version] = (version_compare(PHP_VERSION, $version) < 0) ? FALSE : TRUE;
-	}
-
-	return $_is_php[$version];
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * Tests for file writability
- *
- * is_writable() returns TRUE on Windows servers when you really can't write to 
- * the file, based on the read-only attribute.  is_writable() is also unreliable
- * on Unix servers if safe_mode is on. 
- *
- * @access	private
- * @return	void
- */
-function is_really_writable($file)
-{	
-	// If we're on a Unix server with safe_mode off we call is_writable
-	if (DIRECTORY_SEPARATOR == '/' AND @ini_get("safe_mode") == FALSE)
-	{
-		return is_writable($file);
-	}
-
-	// For windows servers and safe_mode "on" installations we'll actually
-	// write a file then read it.  Bah...
-	if (is_dir($file))
-	{
-		$file = rtrim($file, '/').'/'.md5(rand(1,100));
-
-		if (($fp = @fopen($file, FOPEN_WRITE_CREATE)) === FALSE)
-		{
-			return FALSE;
-		}
-
-		fclose($fp);
-		@chmod($file, DIR_WRITE_MODE);
-		@unlink($file);
-		return TRUE;
-	}
-	elseif (($fp = @fopen($file, FOPEN_WRITE_CREATE)) === FALSE)
-	{
-		return FALSE;
-	}
-
-	fclose($fp);
-	return TRUE;
-}
-
-// ------------------------------------------------------------------------
-
-/**
-* Class registry
-*
-* This function acts as a singleton.  If the requested class does not
-* exist it is instantiated and set to a static variable.  If it has
-* previously been instantiated the variable is returned.
-*
-* @access	public
-* @param	string	the class name being requested
-* @param	bool	optional flag that lets classes get loaded but not instantiated
-* @return	object
-*/
-function &load_class($class, $instantiate = TRUE)
-{
-	static $objects = array();
-
-	// Does the class exist?  If so, we're done...
-	if (isset($objects[$class]))
-	{
-		return $objects[$class];
-	}
-
-	// If the requested class does not exist in the application/libraries
-	// folder we'll load the native class from the system/libraries folder.	
-	if (file_exists(APPPATH.'libraries/'.config_item('subclass_prefix').$class.EXT))
-	{
-		require(BASEPATH.'libraries/'.$class.EXT);
-		require(APPPATH.'libraries/'.config_item('subclass_prefix').$class.EXT);
-		$is_subclass = TRUE;
-	}
-	else
-	{
-		if (file_exists(APPPATH.'libraries/'.$class.EXT))
-		{
-			require(APPPATH.'libraries/'.$class.EXT);
-			$is_subclass = FALSE;
-		}
-		else
-		{
-			require(BASEPATH.'libraries/'.$class.EXT);
-			$is_subclass = FALSE;
-		}
-	}
-
-	if ($instantiate == FALSE)
-	{
-		$objects[$class] = TRUE;
-		return $objects[$class];
-	}
-
-	if ($is_subclass == TRUE)
-	{
-		$name = config_item('subclass_prefix').$class;
-
-		$objects[$class] =& instantiate_class(new $name());
-		return $objects[$class];
-	}
-
-	$name = ($class != 'Controller') ? 'CI_'.$class : $class;
-
-	$objects[$class] =& instantiate_class(new $name());
-	return $objects[$class];
-}
-
-/**
- * Instantiate Class
- *
- * Returns a new class object by reference, used by load_class() and the DB class.
- * Required to retain PHP 4 compatibility and also not make PHP 5.3 cry.
- *
- * Use: $obj =& instantiate_class(new Foo());
- * 
- * @access	public
- * @param	object
- * @return	object
- */
-function &instantiate_class(&$class_object)
-{
-	return $class_object;
-}
-
-/**
-* Loads the main config.php file
-*
-* @access	private
-* @return	array
-*/
-function &get_config()
-{
-	static $main_conf;
-
-	if ( ! isset($main_conf))
-	{
-		if ( ! file_exists(APPPATH.'config/config'.EXT))
-		{
-			exit('The configuration file config'.EXT.' does not exist.');
-		}
-
-		require(APPPATH.'config/config'.EXT);
-
-		if ( ! isset($config) OR ! is_array($config))
-		{
-			exit('Your config file does not appear to be formatted correctly.');
-		}
-
-		$main_conf[0] =& $config;
-	}
-	return $main_conf[0];
-}
-
-/**
-* Gets a config item
-*
-* @access	public
-* @return	mixed
-*/
-function config_item($item)
-{
-	static $config_item = array();
-
-	if ( ! isset($config_item[$item]))
-	{
-		$config =& get_config();
-
-		if ( ! isset($config[$item]))
-		{
-			return FALSE;
-		}
-		$config_item[$item] = $config[$item];
-	}
-
-	return $config_item[$item];
-}
-
-
-/**
-* Error Handler
-*
-* This function lets us invoke the exception class and
-* display errors using the standard error template located
-* in application/errors/errors.php
-* This function will send the error page directly to the
-* browser and exit.
-*
-* @access	public
-* @return	void
-*/
-function show_error($message, $status_code = 500)
-{
-	$error =& load_class('Exceptions');
-	echo $error->show_error('An Error Was Encountered', $message, 'error_general', $status_code);
-	exit;
-}
-
-
-/**
-* 404 Page Handler
-*
-* This function is similar to the show_error() function above
-* However, instead of the standard error template it displays
-* 404 errors.
-*
-* @access	public
-* @return	void
-*/
-function show_404($page = '')
-{
-	$error =& load_class('Exceptions');
-	$error->show_404($page);
-	exit;
-}
-
-
-/**
-* Error Logging Interface
-*
-* We use this as a simple mechanism to access the logging
-* class and send messages to be logged.
-*
-* @access	public
-* @return	void
-*/
-function log_message($level = 'error', $message, $php_error = FALSE)
-{
-	static $LOG;
-	
-	$config =& get_config();
-	if ($config['log_threshold'] == 0)
-	{
-		return;
-	}
-
-	$LOG =& load_class('Log');
-	$LOG->write_log($level, $message, $php_error);
-}
-
-
-/**
- * Set HTTP Status Header
- *
- * @access	public
- * @param	int 	the status code
- * @param	string	
- * @return	void
- */
-function set_status_header($code = 200, $text = '')
-{
-	$stati = array(
-						200	=> 'OK',
-						201	=> 'Created',
-						202	=> 'Accepted',
-						203	=> 'Non-Authoritative Information',
-						204	=> 'No Content',
-						205	=> 'Reset Content',
-						206	=> 'Partial Content',
-
-						300	=> 'Multiple Choices',
-						301	=> 'Moved Permanently',
-						302	=> 'Found',
-						304	=> 'Not Modified',
-						305	=> 'Use Proxy',
-						307	=> 'Temporary Redirect',
-
-						400	=> 'Bad Request',
-						401	=> 'Unauthorized',
-						403	=> 'Forbidden',
-						404	=> 'Not Found',
-						405	=> 'Method Not Allowed',
-						406	=> 'Not Acceptable',
-						407	=> 'Proxy Authentication Required',
-						408	=> 'Request Timeout',
-						409	=> 'Conflict',
-						410	=> 'Gone',
-						411	=> 'Length Required',
-						412	=> 'Precondition Failed',
-						413	=> 'Request Entity Too Large',
-						414	=> 'Request-URI Too Long',
-						415	=> 'Unsupported Media Type',
-						416	=> 'Requested Range Not Satisfiable',
-						417	=> 'Expectation Failed',
-
-						500	=> 'Internal Server Error',
-						501	=> 'Not Implemented',
-						502	=> 'Bad Gateway',
-						503	=> 'Service Unavailable',
-						504	=> 'Gateway Timeout',
-						505	=> 'HTTP Version Not Supported'
-					);
-
-	if ($code == '' OR ! is_numeric($code))
-	{
-		show_error('Status codes must be numeric', 500);
-	}
-
-	if (isset($stati[$code]) AND $text == '')
-	{				
-		$text = $stati[$code];
-	}
-	
-	if ($text == '')
-	{
-		show_error('No status text available.  Please check your status code number or supply your own message text.', 500);
-	}
-	
-	$server_protocol = (isset($_SERVER['SERVER_PROTOCOL'])) ? $_SERVER['SERVER_PROTOCOL'] : FALSE;
-
-	if (substr(php_sapi_name(), 0, 3) == 'cgi')
-	{
-		header("Status: {$code} {$text}", TRUE);
-	}
-	elseif ($server_protocol == 'HTTP/1.1' OR $server_protocol == 'HTTP/1.0')
-	{
-		header($server_protocol." {$code} {$text}", TRUE, $code);
-	}
-	else
-	{
-		header("HTTP/1.1 {$code} {$text}", TRUE, $code);
-	}
-}
-
-
-/**
-* Exception Handler
-*
-* This is the custom exception handler that is declaired at the top
-* of Codeigniter.php.  The main reason we use this is permit
-* PHP errors to be logged in our own log files since we may
-* not have access to server logs. Since this function
-* effectively intercepts PHP errors, however, we also need
-* to display errors based on the current error_reporting level.
-* We do that with the use of a PHP error template.
-*
-* @access	private
-* @return	void
-*/
-function _exception_handler($severity, $message, $filepath, $line)
-{	
-	 // We don't bother with "strict" notices since they will fill up
-	 // the log file with information that isn't normally very
-	 // helpful.  For example, if you are running PHP 5 and you
-	 // use version 4 style class functions (without prefixes
-	 // like "public", "private", etc.) you'll get notices telling
-	 // you that these have been deprecated.
-	
-	if ($severity == E_STRICT)
-	{
-		return;
-	}
-
-	$error =& load_class('Exceptions');
-
-	// Should we display the error?
-	// We'll get the current error_reporting level and add its bits
-	// with the severity bits to find out.
-	
-	if (($severity & error_reporting()) == $severity)
-	{
-		$error->show_php_error($severity, $message, $filepath, $line);
-	}
-	
-	// Should we log the error?  No?  We're done...
-	$config =& get_config();
-	if ($config['log_threshold'] == 0)
-	{
-		return;
-	}
-
-	$error->log_exception($severity, $message, $filepath, $line);
-}
-
-
-
-/* End of file Common.php */
-/* Location: ./system/codeigniter/Common.php */
\ No newline at end of file
diff --git a/system/codeigniter/Compat.php b/system/codeigniter/Compat.php
deleted file mode 100644
index 40017a93b..000000000
--- a/system/codeigniter/Compat.php
+++ /dev/null
@@ -1,93 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * Compatibility Functions
- *
- * Function overrides for older versions of PHP or PHP environments missing
- * certain extensions / libraries
- *
- * @package		CodeIgniter
- * @subpackage	codeigniter
- * @category	Compatibility Functions
- * @author		ExpressionEngine Development Team
- * @link		http://codeigniter.com/user_guide/
- */
-
-// ------------------------------------------------------------------------
-
-/*
- * PHP versions prior to 5.0 don't support the E_STRICT constant
- * so we need to explicitly define it otherwise the Exception class 
- * will generate errors when running under PHP 4
- *
- */
-if ( ! defined('E_STRICT'))
-{
-	define('E_STRICT', 2048);
-}
-
-/**
- * ctype_digit()
- *
- * Determines if a string is comprised only of digits
- * http://us.php.net/manual/en/function.ctype_digit.php
- *
- * @access	public
- * @param	string
- * @return	bool
- */
-if ( ! function_exists('ctype_digit'))
-{
-	function ctype_digit($str)
-	{
-		if ( ! is_string($str) OR $str == '')
-		{
-			return FALSE;
-		}
-		
-		return ! preg_match('/[^0-9]/', $str);
-	}	
-}
-
-// --------------------------------------------------------------------
-
-/**
- * ctype_alnum()
- *
- * Determines if a string is comprised of only alphanumeric characters
- * http://us.php.net/manual/en/function.ctype-alnum.php
- *
- * @access	public
- * @param	string
- * @return	bool
- */
-if ( ! function_exists('ctype_alnum'))
-{
-	function ctype_alnum($str)
-	{
-		if ( ! is_string($str) OR $str == '')
-		{
-			return FALSE;
-		}
-		
-		return ! preg_match('/[^0-9a-z]/i', $str);
-	}	
-}
-
-/* End of file Compat.php */
-/* Location: ./system/codeigniter/Compat.php */
\ No newline at end of file
diff --git a/system/libraries/Benchmark.php b/system/core/Benchmark.php
index d485ee21d..515550e9f 100644..100755
--- a/system/libraries/Benchmark.php
+++ b/system/core/Benchmark.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -80,13 +80,13 @@ class CI_Benchmark {
 		{
 			$this->marker[$point2] = microtime();
 		}
-	
+
 		list($sm, $ss) = explode(' ', $this->marker[$point1]);
 		list($em, $es) = explode(' ', $this->marker[$point2]);
 
 		return number_format(($em + $es) - ($sm + $ss), $decimals);
 	}
- 	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -110,4 +110,4 @@ class CI_Benchmark {
 // END CI_Benchmark class
 
 /* End of file Benchmark.php */
-/* Location: ./system/libraries/Benchmark.php */
\ No newline at end of file
+/* Location: ./system/core/Benchmark.php */
\ No newline at end of file
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
new file mode 100755
index 000000000..2d3f24958
--- /dev/null
+++ b/system/core/CodeIgniter.php
@@ -0,0 +1,340 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * System Initialization File
+ *
+ * Loads the base classes and executes the request.
+ *
+ * @package		CodeIgniter
+ * @subpackage	codeigniter
+ * @category	Front-controller
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/
+ */
+
+/*
+ * ------------------------------------------------------
+ *  Define the CodeIgniter Version
+ * ------------------------------------------------------
+ */
+	define('CI_VERSION', '2.0');
+
+/*
+ * ------------------------------------------------------
+ *  Load the global functions
+ * ------------------------------------------------------
+ */
+	require(BASEPATH.'core/Common'.EXT);
+
+/*
+ * ------------------------------------------------------
+ *  Load the framework constants
+ * ------------------------------------------------------
+ */
+	require(APPPATH.'config/constants'.EXT);
+
+/*
+ * ------------------------------------------------------
+ *  Define a custom error handler so we can log PHP errors
+ * ------------------------------------------------------
+ */
+	set_error_handler('_exception_handler');
+
+	if ( ! is_php('5.3'))
+	{
+		@set_magic_quotes_runtime(0); // Kill magic quotes
+	}
+
+/*
+ * ------------------------------------------------------
+ *  Set the subclass_prefix
+ * ------------------------------------------------------
+ *
+ * Normally the "subclass_prefix" is set in the config file.
+ * The subclass prefix allows CI to know if a core class is
+ * being extended via a library in the local application
+ * "libraries" folder. Since CI allows config items to be
+ * overriden via data set in the main index. php file,
+ * before proceeding we need to know if a subclass_prefix
+ * override exists.  If so, we will set this value now,
+ * before any classes are loaded
+ * Note: Since the config file data is cached it doesn't
+ * hurt to load it here.
+ */
+	if (isset($assign_to_config['subclass_prefix']) AND $assign_to_config['subclass_prefix'] != '')
+	{
+		get_config(array('subclass_prefix' => $assign_to_config['subclass_prefix']));
+	}
+	
+/*
+ * ------------------------------------------------------
+ *  Set a liberal script execution time limit
+ * ------------------------------------------------------
+ */
+	if (function_exists("set_time_limit") == TRUE AND @ini_get("safe_mode") == 0)
+	{
+		@set_time_limit(300);
+	}
+
+/*
+ * ------------------------------------------------------
+ *  Start the timer... tick tock tick tock...
+ * ------------------------------------------------------
+ */
+	$BM =& load_class('Benchmark', 'core');
+	$BM->mark('total_execution_time_start');
+	$BM->mark('loading_time:_base_classes_start');
+
+/*
+ * ------------------------------------------------------
+ *  Instantiate the hooks class
+ * ------------------------------------------------------
+ */
+	$EXT =& load_class('Hooks', 'core');
+
+/*
+ * ------------------------------------------------------
+ *  Is there a "pre_system" hook?
+ * ------------------------------------------------------
+ */
+	$EXT->_call_hook('pre_system');
+
+/*
+ * ------------------------------------------------------
+ *  Instantiate the config class
+ * ------------------------------------------------------
+ */
+	$CFG =& load_class('Config', 'core');
+
+	// Do we have any manually set config items in the index.php file?
+	if (isset($assign_to_config))
+	{
+		$CFG->_assign_to_config($assign_to_config);
+	}
+
+/*
+ * ------------------------------------------------------
+ *  Instantiate the UTF-8 class
+ * ------------------------------------------------------
+ *
+ * Note: Order here is rather important as the UTF-8
+ * class needs to be used very early on, but it cannot
+ * properly determine if UTf-8 can be supported until
+ * after the Config class is instantiated.
+ *
+ */
+
+	$UNI =& load_class('Utf8', 'core');
+
+/*
+ * ------------------------------------------------------
+ *  Instantiate the URI class
+ * ------------------------------------------------------
+ */
+	$URI =& load_class('URI', 'core');
+
+/*
+ * ------------------------------------------------------
+ *  Instantiate the routing class and set the routing
+ * ------------------------------------------------------
+ */
+	$RTR =& load_class('Router', 'core');
+	$RTR->_set_routing();
+
+	// Set any routing overrides that may exist in the main index file
+	if (isset($routing))
+	{
+		$RTR->_set_overrides($routing);
+	}
+
+/*
+ * ------------------------------------------------------
+ *  Instantiate the output class
+ * ------------------------------------------------------
+ */
+	$OUT =& load_class('Output', 'core');
+
+/*
+ * ------------------------------------------------------
+ *	Is there a valid cache file?  If so, we're done...
+ * ------------------------------------------------------
+ */
+	if ($EXT->_call_hook('cache_override') === FALSE)
+	{
+		if ($OUT->_display_cache($CFG, $URI) == TRUE)
+		{
+			exit;
+		}
+	}
+
+/*
+ * ------------------------------------------------------
+ *  Load the Input class and sanitize globals
+ * ------------------------------------------------------
+ */
+	$IN	=& load_class('Input', 'core');
+
+/*
+ * ------------------------------------------------------
+ *  Load the Language class
+ * ------------------------------------------------------
+ */
+	$LANG =& load_class('Lang', 'core');
+
+/*
+ * ------------------------------------------------------
+ *  Load the app controller and local controller
+ * ------------------------------------------------------
+ *
+ */
+	// Load the base controller class
+	require BASEPATH.'core/Controller'.EXT;
+
+	function &get_instance()
+	{
+		return CI_Controller::get_instance();
+	}
+
+
+	if (file_exists(APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller'.EXT))
+	{
+		require APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller'.EXT;
+	}
+
+	// Load the local application controller
+	// Note: The Router class automatically validates the controller path using the router->_validate_request().
+	// If this include fails it means that the default controller in the Routes.php file is not resolving to something valid.
+	if ( ! file_exists(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().EXT))
+	{
+		show_error('Unable to load your default controller. Please make sure the controller specified in your Routes.php file is valid.');
+	}
+
+	include(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().EXT);
+
+	// Set a mark point for benchmarking
+	$BM->mark('loading_time:_base_classes_end');
+
+/*
+ * ------------------------------------------------------
+ *  Security check
+ * ------------------------------------------------------
+ *
+ *  None of the functions in the app controller or the
+ *  loader class can be called via the URI, nor can
+ *  controller functions that begin with an underscore
+ */
+	$class  = $RTR->fetch_class();
+	$method = $RTR->fetch_method();
+
+	if ( ! class_exists($class)
+		OR strncmp($method, '_', 1) == 0
+		OR in_array(strtolower($method), array_map('strtolower', get_class_methods('CI_Controller')))
+		)
+	{
+		show_404("{$class}/{$method}");
+	}
+
+/*
+ * ------------------------------------------------------
+ *  Is there a "pre_controller" hook?
+ * ------------------------------------------------------
+ */
+	$EXT->_call_hook('pre_controller');
+
+/*
+ * ------------------------------------------------------
+ *  Instantiate the requested controller
+ * ------------------------------------------------------
+ */
+	// Mark a start point so we can benchmark the controller
+	$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_start');
+
+	$CI = new $class();
+
+/*
+ * ------------------------------------------------------
+ *  Is there a "post_controller_constructor" hook?
+ * ------------------------------------------------------
+ */
+	$EXT->_call_hook('post_controller_constructor');
+
+/*
+ * ------------------------------------------------------
+ *  Call the requested method
+ * ------------------------------------------------------
+ */
+	// Is there a "remap" function? If so, we call it instead
+	if (method_exists($CI, '_remap'))
+	{
+		$CI->_remap($method, array_slice($URI->rsegments, 2));
+	}
+	else
+	{
+		// is_callable() returns TRUE on some versions of PHP 5 for private and protected
+		// methods, so we'll use this workaround for consistent behavior
+		if ( ! in_array(strtolower($method), array_map('strtolower', get_class_methods($CI))))
+		{
+			show_404("{$class}/{$method}");
+		}
+
+		// Call the requested method.
+		// Any URI segments present (besides the class/function) will be passed to the method for convenience
+		call_user_func_array(array(&$CI, $method), array_slice($URI->rsegments, 2));
+	}
+
+
+	// Mark a benchmark end point
+	$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_end');
+
+/*
+ * ------------------------------------------------------
+ *  Is there a "post_controller" hook?
+ * ------------------------------------------------------
+ */
+	$EXT->_call_hook('post_controller');
+
+/*
+ * ------------------------------------------------------
+ *  Send the final rendered output to the browser
+ * ------------------------------------------------------
+ */
+	if ($EXT->_call_hook('display_override') === FALSE)
+	{
+		$OUT->_display();
+	}
+
+/*
+ * ------------------------------------------------------
+ *  Is there a "post_system" hook?
+ * ------------------------------------------------------
+ */
+	$EXT->_call_hook('post_system');
+
+/*
+ * ------------------------------------------------------
+ *  Close the DB connection if one exists
+ * ------------------------------------------------------
+ */
+	if (class_exists('CI_DB') AND isset($CI->db))
+	{
+		$CI->db->close();
+	}
+
+
+/* End of file CodeIgniter.php */
+/* Location: ./system/core/CodeIgniter.php */
\ No newline at end of file
diff --git a/system/core/Common.php b/system/core/Common.php
new file mode 100755
index 000000000..b5adfacb3
--- /dev/null
+++ b/system/core/Common.php
@@ -0,0 +1,503 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Common Functions
+ *
+ * Loads the base classes and executes the request.
+ *
+ * @package		CodeIgniter
+ * @subpackage	codeigniter
+ * @category	Common Functions
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+* Determines if the current version of PHP is greater then the supplied value
+*
+* Since there are a few places where we conditionally test for PHP > 5
+* we'll set a static variable.
+*
+* @access	public
+* @param	string
+* @return	bool	TRUE if the current version is $version or higher
+*/
+	function is_php($version = '5.0.0')
+	{
+		static $_is_php;
+		$version = (string)$version;
+
+		if ( ! isset($_is_php[$version]))
+		{
+			$_is_php[$version] = (version_compare(PHP_VERSION, $version) < 0) ? FALSE : TRUE;
+		}
+
+		return $_is_php[$version];
+	}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Tests for file writability
+ *
+ * is_writable() returns TRUE on Windows servers when you really can't write to
+ * the file, based on the read-only attribute.  is_writable() is also unreliable
+ * on Unix servers if safe_mode is on.
+ *
+ * @access	private
+ * @return	void
+ */
+	function is_really_writable($file)
+	{
+		// If we're on a Unix server with safe_mode off we call is_writable
+		if (DIRECTORY_SEPARATOR == '/' AND @ini_get("safe_mode") == FALSE)
+		{
+			return is_writable($file);
+		}
+
+		// For windows servers and safe_mode "on" installations we'll actually
+		// write a file then read it.  Bah...
+		if (is_dir($file))
+		{
+			$file = rtrim($file, '/').'/'.md5(mt_rand(1,100).mt_rand(1,100));
+
+			if (($fp = @fopen($file, FOPEN_WRITE_CREATE)) === FALSE)
+			{
+				return FALSE;
+			}
+
+			fclose($fp);
+			@chmod($file, DIR_WRITE_MODE);
+			@unlink($file);
+			return TRUE;
+		}
+		elseif (($fp = @fopen($file, FOPEN_WRITE_CREATE)) === FALSE)
+		{
+			return FALSE;
+		}
+
+		fclose($fp);
+		return TRUE;
+	}
+
+// ------------------------------------------------------------------------
+
+/**
+* Class registry
+*
+* This function acts as a singleton.  If the requested class does not
+* exist it is instantiated and set to a static variable.  If it has
+* previously been instantiated the variable is returned.
+*
+* @access	public
+* @param	string	the class name being requested
+* @param	string	the directory where the class should be found
+* @param	string	the class name prefix
+* @return	object
+*/
+	function &load_class($class, $directory = 'libraries', $prefix = 'CI_')
+	{
+		static $_classes = array();
+
+		// Does the class exist?  If so, we're done...
+		if (isset($_classes[$class]))
+		{
+			return $_classes[$class];
+		}
+
+		$name = FALSE;
+
+		// Look for the class first in the native system/libraries folder
+		// thenin the local application/libraries folder
+		foreach (array(BASEPATH, APPPATH) as $path)
+		{
+			if (file_exists($path.$directory.'/'.$class.EXT))
+			{
+				$name = $prefix.$class;
+
+				if (class_exists($name) === FALSE)
+				{
+					require($path.$directory.'/'.$class.EXT);
+				}
+
+				break;
+			}
+		}
+
+		// Is the request a class extension?  If so we load it too
+		if (file_exists(APPPATH.$directory.'/'.config_item('subclass_prefix').$class.EXT))
+		{
+			$name = config_item('subclass_prefix').$class;
+
+			if (class_exists($name) === FALSE)
+			{
+				require(APPPATH.$directory.'/'.config_item('subclass_prefix').$class.EXT);
+			}
+		}
+
+		// Did we find the class?
+		if ($name === FALSE)
+		{
+			// Note: We use exit() rather then show_error() in order to avoid a
+			// self-referencing loop with the Excptions class
+			exit('Unable to locate the specified class: '.$class.EXT);
+		}
+
+		// Keep track of what we just loaded
+		is_loaded($class);
+
+		$_classes[$class] = new $name();
+		return $_classes[$class];
+	}
+
+// --------------------------------------------------------------------
+
+/**
+* Keeps track of which libraries have been loaded.  This function is
+* called by the load_class() function above
+*
+* @access	public
+* @return	array
+*/
+	function is_loaded($class = '')
+	{
+		static $_is_loaded = array();
+
+		if ($class != '')
+		{
+			$_is_loaded[strtolower($class)] = $class;
+		}
+
+		return $_is_loaded;
+	}
+
+// ------------------------------------------------------------------------
+
+/**
+* Loads the main config.php file
+*
+* This function lets us grab the config file even if the Config class
+* hasn't been instantiated yet
+*
+* @access	private
+* @return	array
+*/
+	function &get_config($replace = array())
+	{
+		static $_config;
+
+		if (isset($_config))
+		{
+			return $_config[0];
+		}
+
+		// Fetch the config file
+		if ( ! file_exists(APPPATH.'config/config'.EXT))
+		{
+			exit('The configuration file does not exist.');
+		}
+		else
+		{
+			require(APPPATH.'config/config'.EXT);
+		}
+
+		// Does the $config array exist in the file?
+		if ( ! isset($config) OR ! is_array($config))
+		{
+			exit('Your config file does not appear to be formatted correctly.');
+		}
+
+		// Are any values being dynamically replaced?
+		if (count($replace) > 0)
+		{
+			foreach ($replace as $key => $val)
+			{
+				if (isset($config[$key]))
+				{
+					$config[$key] = $val;
+				}
+			}
+		}
+
+		return $_config[0] =& $config;
+	}
+
+// ------------------------------------------------------------------------
+
+/**
+* Returns the specified config item
+*
+* @access	public
+* @return	mixed
+*/
+	function config_item($item)
+	{
+		static $_config_item = array();
+
+		if ( ! isset($_config_item[$item]))
+		{
+			$config =& get_config();
+
+			if ( ! isset($config[$item]))
+			{
+				return FALSE;
+			}
+			$_config_item[$item] = $config[$item];
+		}
+
+		return $_config_item[$item];
+	}
+
+// ------------------------------------------------------------------------
+
+/**
+* Error Handler
+*
+* This function lets us invoke the exception class and
+* display errors using the standard error template located
+* in application/errors/errors.php
+* This function will send the error page directly to the
+* browser and exit.
+*
+* @access	public
+* @return	void
+*/
+	function show_error($message, $status_code = 500, $heading = 'An Error Was Encountered')
+	{
+		$_error =& load_class('Exceptions', 'core');
+		echo $_error->show_error($heading, $message, 'error_general', $status_code);
+		exit;
+	}
+
+// ------------------------------------------------------------------------
+
+/**
+* 404 Page Handler
+*
+* This function is similar to the show_error() function above
+* However, instead of the standard error template it displays
+* 404 errors.
+*
+* @access	public
+* @return	void
+*/
+	function show_404($page = '', $log_error = TRUE)
+	{
+		$_error =& load_class('Exceptions', 'core');
+		$_error->show_404($page, $log_error);
+		exit;
+	}
+
+// ------------------------------------------------------------------------
+
+/**
+* Error Logging Interface
+*
+* We use this as a simple mechanism to access the logging
+* class and send messages to be logged.
+*
+* @access	public
+* @return	void
+*/
+	function log_message($level = 'error', $message, $php_error = FALSE)
+	{
+		static $_log;
+
+		if (config_item('log_threshold') == 0)
+		{
+			return;
+		}
+
+		$_log =& load_class('Log');
+		$_log->write_log($level, $message, $php_error);
+	}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Set HTTP Status Header
+ *
+ * @access	public
+ * @param	int		the status code
+ * @param	string
+ * @return	void
+ */
+	function set_status_header($code = 200, $text = '')
+	{
+		$stati = array(
+							200	=> 'OK',
+							201	=> 'Created',
+							202	=> 'Accepted',
+							203	=> 'Non-Authoritative Information',
+							204	=> 'No Content',
+							205	=> 'Reset Content',
+							206	=> 'Partial Content',
+
+							300	=> 'Multiple Choices',
+							301	=> 'Moved Permanently',
+							302	=> 'Found',
+							304	=> 'Not Modified',
+							305	=> 'Use Proxy',
+							307	=> 'Temporary Redirect',
+
+							400	=> 'Bad Request',
+							401	=> 'Unauthorized',
+							403	=> 'Forbidden',
+							404	=> 'Not Found',
+							405	=> 'Method Not Allowed',
+							406	=> 'Not Acceptable',
+							407	=> 'Proxy Authentication Required',
+							408	=> 'Request Timeout',
+							409	=> 'Conflict',
+							410	=> 'Gone',
+							411	=> 'Length Required',
+							412	=> 'Precondition Failed',
+							413	=> 'Request Entity Too Large',
+							414	=> 'Request-URI Too Long',
+							415	=> 'Unsupported Media Type',
+							416	=> 'Requested Range Not Satisfiable',
+							417	=> 'Expectation Failed',
+
+							500	=> 'Internal Server Error',
+							501	=> 'Not Implemented',
+							502	=> 'Bad Gateway',
+							503	=> 'Service Unavailable',
+							504	=> 'Gateway Timeout',
+							505	=> 'HTTP Version Not Supported'
+						);
+
+		if ($code == '' OR ! is_numeric($code))
+		{
+			show_error('Status codes must be numeric', 500);
+		}
+
+		if (isset($stati[$code]) AND $text == '')
+		{
+			$text = $stati[$code];
+		}
+
+		if ($text == '')
+		{
+			show_error('No status text available.  Please check your status code number or supply your own message text.', 500);
+		}
+
+		$server_protocol = (isset($_SERVER['SERVER_PROTOCOL'])) ? $_SERVER['SERVER_PROTOCOL'] : FALSE;
+
+		if (substr(php_sapi_name(), 0, 3) == 'cgi')
+		{
+			header("Status: {$code} {$text}", TRUE);
+		}
+		elseif ($server_protocol == 'HTTP/1.1' OR $server_protocol == 'HTTP/1.0')
+		{
+			header($server_protocol." {$code} {$text}", TRUE, $code);
+		}
+		else
+		{
+			header("HTTP/1.1 {$code} {$text}", TRUE, $code);
+		}
+	}
+
+// --------------------------------------------------------------------
+
+/**
+* Exception Handler
+*
+* This is the custom exception handler that is declaired at the top
+* of Codeigniter.php.  The main reason we use this is to permit
+* PHP errors to be logged in our own log files since the user may
+* not have access to server logs. Since this function
+* effectively intercepts PHP errors, however, we also need
+* to display errors based on the current error_reporting level.
+* We do that with the use of a PHP error template.
+*
+* @access	private
+* @return	void
+*/
+	function _exception_handler($severity, $message, $filepath, $line)
+	{
+		 // We don't bother with "strict" notices since they tend to fill up
+		 // the log file with excess information that isn't normally very helpful.
+		 // For example, if you are running PHP 5 and you use version 4 style
+		 // class functions (without prefixes like "public", "private", etc.)
+		 // you'll get notices telling you that these have been deprecated.
+		if ($severity == E_STRICT)
+		{
+			return;
+		}
+
+		$_error =& load_class('Exceptions', 'core');
+
+		// Should we display the error? We'll get the current error_reporting
+		// level and add its bits with the severity bits to find out.
+		if (($severity & error_reporting()) == $severity)
+		{
+			$_error->show_php_error($severity, $message, $filepath, $line);
+		}
+
+		// Should we log the error?  No?  We're done...
+		if (config_item('log_threshold') == 0)
+		{
+			return;
+		}
+
+		$_error->log_exception($severity, $message, $filepath, $line);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Remove Invisible Characters
+	 *
+	 * This prevents sandwiching null characters
+	 * between ascii characters, like Java\0script.
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	string
+	 */
+	function remove_invisible_characters($str)
+	{
+		static $non_displayables;
+
+		if ( ! isset($non_displayables))
+		{
+			// every control character except newline (dec 10), carriage return (dec 13), and horizontal tab (dec 09),
+			$non_displayables = array(
+										'/%0[0-8bcef]/',			// url encoded 00-08, 11, 12, 14, 15
+										'/%1[0-9a-f]/',				// url encoded 16-31
+										'/[\x00-\x08]/',			// 00-08
+										'/\x0b/', '/\x0c/',			// 11, 12
+										'/[\x0e-\x1f]/'				// 14-31
+									);
+		}
+
+		do
+		{
+			$cleaned = $str;
+			$str = preg_replace($non_displayables, '', $str);
+		}
+		while ($cleaned != $str);
+
+		return $str;
+	}
+
+
+/* End of file Common.php */
+/* Location: ./system/core/Common.php */
\ No newline at end of file
diff --git a/system/libraries/Config.php b/system/core/Config.php
index 760120779..bfb60fa44 100644..100755
--- a/system/libraries/Config.php
+++ b/system/core/Config.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -30,6 +30,7 @@ class CI_Config {
 
 	var $config = array();
 	var $is_loaded = array();
+	var $_config_paths = array(APPPATH);
 
 	/**
 	 * Constructor
@@ -42,12 +43,30 @@ class CI_Config {
 	 * @param   boolean  true if errors should just return false, false if an error message should be displayed
 	 * @return  boolean  if the file was successfully loaded or not
 	 */
-	function CI_Config()
+	function __construct()
 	{
 		$this->config =& get_config();
 		log_message('debug', "Config Class Initialized");
+
+		// Set the base_url automatically if none was provided
+		if ($this->config['base_url'] == '')
+		{
+			if(isset($_SERVER['HTTP_HOST']))
+			{
+				$base_url = isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off' ? 'https' : 'http';
+				$base_url .= '://'. $_SERVER['HTTP_HOST'];
+				$base_url .= str_replace(basename($_SERVER['SCRIPT_NAME']), '', $_SERVER['SCRIPT_NAME']);
+			}
+
+			else
+			{
+				$base_url = 'http://localhost/';
+			}
+
+			$this->set_item('base_url', $base_url);
+		}
 	}
-  	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -56,59 +75,73 @@ class CI_Config {
 	 * @access	public
 	 * @param	string	the config file name
 	 * @return	boolean	if the file was loaded correctly
-	 */	
+	 */
 	function load($file = '', $use_sections = FALSE, $fail_gracefully = FALSE)
 	{
 		$file = ($file == '') ? 'config' : str_replace(EXT, '', $file);
-	
-		if (in_array($file, $this->is_loaded, TRUE))
-		{
-			return TRUE;
-		}
+		$loaded = FALSE;
 
-		if ( ! file_exists(APPPATH.'config/'.$file.EXT))
+		foreach($this->_config_paths as $path)
 		{
-			if ($fail_gracefully === TRUE)
+			$file_path = $path.'config/'.$file.EXT;
+
+			if (in_array($file_path, $this->is_loaded, TRUE))
 			{
-				return FALSE;
+				$loaded = TRUE;
+				continue;
 			}
-			show_error('The configuration file '.$file.EXT.' does not exist.');
-		}
-	
-		include(APPPATH.'config/'.$file.EXT);
 
-		if ( ! isset($config) OR ! is_array($config))
-		{
-			if ($fail_gracefully === TRUE)
+			if ( ! file_exists($path.'config/'.$file.EXT))
 			{
-				return FALSE;
+				continue;
 			}
-			show_error('Your '.$file.EXT.' file does not appear to contain a valid configuration array.');
-		}
 
-		if ($use_sections === TRUE)
-		{
-			if (isset($this->config[$file]))
+			include($file_path);
+
+			if ( ! isset($config) OR ! is_array($config))
 			{
-				$this->config[$file] = array_merge($this->config[$file], $config);
+				if ($fail_gracefully === TRUE)
+				{
+					return FALSE;
+				}
+				show_error('Your '.$file_path.' file does not appear to contain a valid configuration array.');
+			}
+
+			if ($use_sections === TRUE)
+			{
+				if (isset($this->config[$file]))
+				{
+					$this->config[$file] = array_merge($this->config[$file], $config);
+				}
+				else
+				{
+					$this->config[$file] = $config;
+				}
 			}
 			else
 			{
-				$this->config[$file] = $config;
+				$this->config = array_merge($this->config, $config);
 			}
+
+			$this->is_loaded[] = $file_path;
+			unset($config);
+
+			$loaded = TRUE;
+			log_message('debug', 'Config file loaded: '.$file_path);
 		}
-		else
+
+		if ($loaded === FALSE)
 		{
-			$this->config = array_merge($this->config, $config);
+			if ($fail_gracefully === TRUE)
+			{
+				return FALSE;
+			}
+			show_error('The configuration file '.$file.EXT.' does not exist.');
 		}
 
-		$this->is_loaded[] = $file;
-		unset($config);
-
-		log_message('debug', 'Config file loaded: config/'.$file.EXT);
 		return TRUE;
 	}
-  	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -122,9 +155,9 @@ class CI_Config {
 	 * @return	string
 	 */
 	function item($item, $index = '')
-	{	
+	{
 		if ($index == '')
-		{	
+		{
 			if ( ! isset($this->config[$item]))
 			{
 				return FALSE;
@@ -149,8 +182,8 @@ class CI_Config {
 
 		return $pref;
 	}
-  	
-  	// --------------------------------------------------------------------
+
+	// --------------------------------------------------------------------
 
 	/**
 	 * Fetch a config file item - adds slash after item
@@ -170,16 +203,9 @@ class CI_Config {
 			return FALSE;
 		}
 
-		$pref = $this->config[$item];
-
-		if ($pref != '' && substr($pref, -1) != '/')
-		{	
-			$pref .= '/';
-		}
-
-		return $pref;
+		return rtrim($this->config[$item], '/').'/';
 	}
-  	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -191,22 +217,42 @@ class CI_Config {
 	 */
 	function site_url($uri = '')
 	{
-		if (is_array($uri))
+		if ($uri == '')
 		{
-			$uri = implode('/', $uri);
+			return $this->slash_item('base_url').$this->item('index_page');
 		}
 
-		if ($uri == '')
+		if ($this->item('enable_query_strings') == FALSE)
 		{
-			return $this->slash_item('base_url').$this->item('index_page');
+			if (is_array($uri))
+			{
+				$uri = implode('/', $uri);
+			}
+
+			$index = $this->item('index_page') == '' ? '' : $this->slash_item('index_page');
+			$suffix = ($this->item('url_suffix') == FALSE) ? '' : $this->item('url_suffix');
+			return $this->slash_item('base_url').$index.trim($uri, '/').$suffix;
 		}
 		else
 		{
-			$suffix = ($this->item('url_suffix') == FALSE) ? '' : $this->item('url_suffix');
-			return $this->slash_item('base_url').$this->slash_item('index_page').trim($uri, '/').$suffix; 
+			if (is_array($uri))
+			{
+				$i = 0;
+				$str = '';
+				foreach ($uri as $key => $val)
+				{
+					$prefix = ($i == 0) ? '' : '&';
+					$str .= $prefix.$key.'='.$val;
+					$i++;
+				}
+
+				$uri = $str;
+			}
+
+			return $this->slash_item('base_url').$this->item('index_page').'?'.$uri;
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -220,7 +266,7 @@ class CI_Config {
 		$x = explode("/", preg_replace("|/*(.+?)/*$|", "\\1", BASEPATH));
 		return $this->slash_item('base_url').end($x).'/';
 	}
-  	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -236,9 +282,32 @@ class CI_Config {
 		$this->config[$item] = $value;
 	}
 
+	// --------------------------------------------------------------------
+
+	/**
+	 * Assign to Config
+	 *
+	 * This function is called by the front controller (CodeIgniter.php)
+	 * after the Config class is instantiated.  It permits config items
+	 * to be assigned or overriden by variables contained in the index.php file
+	 *
+	 * @access	private
+	 * @param	array
+	 * @return	void
+	 */
+	function _assign_to_config($items = array())
+	{
+		if (is_array($items))
+		{
+			foreach ($items as $key => $val)
+			{
+				$this->set_item($key, $val);
+			}
+		}
+	}
 }
 
 // END CI_Config class
 
 /* End of file Config.php */
-/* Location: ./system/libraries/Config.php */
\ No newline at end of file
+/* Location: ./system/core/Config.php */
\ No newline at end of file
diff --git a/system/core/Controller.php b/system/core/Controller.php
new file mode 100755
index 000000000..469663f09
--- /dev/null
+++ b/system/core/Controller.php
@@ -0,0 +1,67 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter Application Controller Class
+ *
+ * This class object is the super class that every library in
+ * CodeIgniter will be assigned to.
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Libraries
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/general/controllers.html
+ */
+class CI_Controller {
+
+	private static $instance;
+
+	/**
+	 * Constructor
+	 */
+	public function __construct()
+	{
+		self::$instance =& $this;
+		
+		// Assign all the class objects that were instantiated by the
+		// bootstrap file (CodeIgniter.php) to local class variables
+		// so that CI can run as one big super object.
+		foreach (is_loaded() as $var => $class)
+		{
+			$this->$var =& load_class($class);
+		}
+
+		$this->load =& load_class('Loader', 'core');
+
+		$this->load->_base_classes =& is_loaded();
+
+		$this->load->_ci_autoloader();
+
+		log_message('debug', "Controller Class Initialized");
+
+	}
+
+	public static function &get_instance()
+	{
+		return self::$instance;
+	}
+}
+// END Controller class
+
+/* End of file Controller.php */
+/* Location: ./system/core/Controller.php */
\ No newline at end of file
diff --git a/system/libraries/Exceptions.php b/system/core/Exceptions.php
index bd567ccdc..f5659561c 100644..100755
--- a/system/libraries/Exceptions.php
+++ b/system/core/Exceptions.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -50,14 +50,13 @@ class CI_Exceptions {
 
 	/**
 	 * Constructor
-	 *
-	 */	
-	function CI_Exceptions()
+	 */
+	public function __construct()
 	{
 		$this->ob_level = ob_get_level();
 		// Note:  Do not log messages from this constructor.
 	}
-  	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -73,9 +72,9 @@ class CI_Exceptions {
 	 * @return	string
 	 */
 	function log_exception($severity, $message, $filepath, $line)
-	{	
+	{
 		$severity = ( ! isset($this->levels[$severity])) ? $severity : $this->levels[$severity];
-		
+
 		log_message('error', 'Severity: '.$severity.'  --> '.$message. ' '.$filepath.' '.$line, TRUE);
 	}
 
@@ -88,16 +87,21 @@ class CI_Exceptions {
 	 * @param	string
 	 * @return	string
 	 */
-	function show_404($page = '')
-	{	
+	function show_404($page = '', $log_error = TRUE)
+	{
 		$heading = "404 Page Not Found";
 		$message = "The page you requested was not found.";
 
-		log_message('error', '404 Page Not Found --> '.$page);
+		// By default we log this, but allow a dev to skip it
+		if ($log_error)
+		{
+			log_message('error', '404 Page Not Found --> '.$page);
+		}
+
 		echo $this->show_error($heading, $message, 'error_404', 404);
 		exit;
 	}
-  	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -116,12 +120,12 @@ class CI_Exceptions {
 	function show_error($heading, $message, $template = 'error_general', $status_code = 500)
 	{
 		set_status_header($status_code);
-		
+
 		$message = '<p>'.implode('</p><p>', ( ! is_array($message)) ? array($message) : $message).'</p>';
 
 		if (ob_get_level() > $this->ob_level + 1)
 		{
-			ob_end_flush();	
+			ob_end_flush();
 		}
 		ob_start();
 		include(APPPATH.'errors/'.$template.EXT);
@@ -143,21 +147,21 @@ class CI_Exceptions {
 	 * @return	string
 	 */
 	function show_php_error($severity, $message, $filepath, $line)
-	{	
+	{
 		$severity = ( ! isset($this->levels[$severity])) ? $severity : $this->levels[$severity];
-	
+
 		$filepath = str_replace("\\", "/", $filepath);
-		
+
 		// For safety reasons we do not show the full file path
 		if (FALSE !== strpos($filepath, '/'))
 		{
 			$x = explode('/', $filepath);
 			$filepath = $x[count($x)-2].'/'.end($x);
 		}
-		
+
 		if (ob_get_level() > $this->ob_level + 1)
 		{
-			ob_end_flush();	
+			ob_end_flush();
 		}
 		ob_start();
 		include(APPPATH.'errors/error_php'.EXT);
@@ -171,4 +175,4 @@ class CI_Exceptions {
 // END Exceptions Class
 
 /* End of file Exceptions.php */
-/* Location: ./system/libraries/Exceptions.php */
\ No newline at end of file
+/* Location: ./system/core/Exceptions.php */
\ No newline at end of file
diff --git a/system/libraries/Hooks.php b/system/core/Hooks.php
index 6d736c3f6..75fd811b0 100644..100755
--- a/system/libraries/Hooks.php
+++ b/system/core/Hooks.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -18,8 +18,7 @@
 /**
  * CodeIgniter Hooks Class
  *
- * Provides a mechanism to extend the base system without hacking.  Most of
- * this class is borrowed from Paul's Extension class in ExpressionEngine.
+ * Provides a mechanism to extend the base system without hacking.
  *
  * @package		CodeIgniter
  * @subpackage	Libraries
@@ -29,20 +28,20 @@
  */
 class CI_Hooks {
 
-	var $enabled 		= FALSE;
-	var $hooks   		= array();
+	var $enabled		= FALSE;
+	var $hooks			= array();
 	var $in_progress	= FALSE;
 
 	/**
 	 * Constructor
 	 *
 	 */
-	function CI_Hooks()
+	function __construct()
 	{
 		$this->_initialize();
 		log_message('debug', "Hooks Class Initialized");
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -50,10 +49,10 @@ class CI_Hooks {
 	 *
 	 * @access	private
 	 * @return	void
-	 */  
-  	function _initialize()
-  	{
-		$CFG =& load_class('Config');
+	 */
+	function _initialize()
+	{
+		$CFG =& load_class('Config', 'core');
 
 		// If hooks are not enabled in the config file
 		// there is nothing else to do
@@ -75,8 +74,8 @@ class CI_Hooks {
 
 		$this->hooks =& $hook;
 		$this->enabled = TRUE;
-  	}
-  
+	}
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -223,4 +222,4 @@ class CI_Hooks {
 // END CI_Hooks class
 
 /* End of file Hooks.php */
-/* Location: ./system/libraries/Hooks.php */
\ No newline at end of file
+/* Location: ./system/core/Hooks.php */
\ No newline at end of file
diff --git a/system/core/Input.php b/system/core/Input.php
new file mode 100755
index 000000000..3e82874fd
--- /dev/null
+++ b/system/core/Input.php
@@ -0,0 +1,652 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Input Class
+ *
+ * Pre-processes global input data for security
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Input
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/libraries/input.html
+ */
+class CI_Input {
+
+	var $ip_address				= FALSE;
+	var $user_agent				= FALSE;
+	var $_allow_get_array		= TRUE;
+	var $_standardize_newlines	= TRUE;
+	var $_enable_xss			= FALSE; // Set automatically based on config setting
+	var $_enable_csrf			= FALSE; // Set automatically based on config setting
+
+	protected $headers			= array();
+	
+
+	/**
+	 * Constructor
+	 *
+	 * Sets whether to globally enable the XSS processing
+	 * and whether to allow the $_GET array
+	 *
+	 */
+	public function __construct()
+	{
+		log_message('debug', "Input Class Initialized");
+
+		$this->_allow_get_array	= (config_item('allow_get_array') === TRUE);
+		$this->_enable_xss		= (config_item('global_xss_filtering') === TRUE);
+		$this->_enable_csrf		= (config_item('csrf_protection') === TRUE);
+
+		// Do we need to load the security class?
+		if ($this->_enable_xss == TRUE OR $this->_enable_csrf == TRUE)
+		{
+			$this->security =& load_class('Security');
+		}
+
+		// Do we need the UTF-8 class?
+		if (UTF8_ENABLED === TRUE)
+		{
+			global $UNI;
+			$this->uni =& $UNI;
+		}
+
+		// Sanitize global arrays
+		$this->_sanitize_globals();
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Fetch from array
+	 *
+	 * This is a helper function to retrieve values from global arrays
+	 *
+	 * @access	private
+	 * @param	array
+	 * @param	string
+	 * @param	bool
+	 * @return	string
+	 */
+	function _fetch_from_array(&$array, $index = '', $xss_clean = FALSE)
+	{
+		if ( ! isset($array[$index]))
+		{
+			return FALSE;
+		}
+
+		if ($xss_clean === TRUE)
+		{
+			$_security =& load_class('Security');
+			return $_security->xss_clean($array[$index]);
+		}
+
+		return $array[$index];
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	* Fetch an item from the GET array
+	*
+	* @access	public
+	* @param	string
+	* @param	bool
+	* @return	string
+	*/
+	function get($index = '', $xss_clean = FALSE)
+	{
+		return $this->_fetch_from_array($_GET, $index, $xss_clean);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	* Fetch an item from the POST array
+	*
+	* @access	public
+	* @param	string
+	* @param	bool
+	* @return	string
+	*/
+	function post($index = '', $xss_clean = FALSE)
+	{
+		return $this->_fetch_from_array($_POST, $index, $xss_clean);
+	}
+
+
+	// --------------------------------------------------------------------
+
+	/**
+	* Fetch an item from either the GET array or the POST
+	*
+	* @access	public
+	* @param	string	The index key
+	* @param	bool	XSS cleaning
+	* @return	string
+	*/
+	function get_post($index = '', $xss_clean = FALSE)
+	{
+		if ( ! isset($_POST[$index]) )
+		{
+			return $this->get($index, $xss_clean);
+		}
+		else
+		{
+			return $this->post($index, $xss_clean);
+		}
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	* Fetch an item from the COOKIE array
+	*
+	* @access	public
+	* @param	string
+	* @param	bool
+	* @return	string
+	*/
+	function cookie($index = '', $xss_clean = FALSE)
+	{
+		return $this->_fetch_from_array($_COOKIE, $index, $xss_clean);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	* Set cookie
+	*
+	* Accepts six parameter, or you can submit an associative
+	* array in the first parameter containing all the values.
+	*
+	* @access	public
+	* @param	mixed
+	* @param	string	the value of the cookie
+	* @param	string	the number of seconds until expiration
+	* @param	string	the cookie domain.  Usually:  .yourdomain.com
+	* @param	string	the cookie path
+	* @param	string	the cookie prefix
+	* @return	void
+	*/
+	function set_cookie($name = '', $value = '', $expire = '', $domain = '', $path = '/', $prefix = '')
+	{
+		if (is_array($name))
+		{
+			foreach (array('value', 'expire', 'domain', 'path', 'prefix', 'name') as $item)
+			{
+				if (isset($name[$item]))
+				{
+					$$item = $name[$item];
+				}
+			}
+		}
+
+		if ($prefix == '' AND config_item('cookie_prefix') != '')
+		{
+			$prefix = config_item('cookie_prefix');
+		}
+		if ($domain == '' AND config_item('cookie_domain') != '')
+		{
+			$domain = config_item('cookie_domain');
+		}
+		if ($path == '/' AND config_item('cookie_path') != '/')
+		{
+			$path = config_item('cookie_path');
+		}
+
+		if ( ! is_numeric($expire))
+		{
+			$expire = time() - 86500;
+		}
+		else
+		{
+			$expire = ($expire > 0) ? time() + $expire : 0;
+		}
+
+		setcookie($prefix.$name, $value, $expire, $path, $domain, 0);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	* Fetch an item from the SERVER array
+	*
+	* @access	public
+	* @param	string
+	* @param	bool
+	* @return	string
+	*/
+	function server($index = '', $xss_clean = FALSE)
+	{
+		return $this->_fetch_from_array($_SERVER, $index, $xss_clean);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	* Fetch the IP Address
+	*
+	* @access	public
+	* @return	string
+	*/
+	function ip_address()
+	{
+		if ($this->ip_address !== FALSE)
+		{
+			return $this->ip_address;
+		}
+
+		if (config_item('proxy_ips') != '' && $this->server('HTTP_X_FORWARDED_FOR') && $this->server('REMOTE_ADDR'))
+		{
+			$proxies = preg_split('/[\s,]/', config_item('proxy_ips'), -1, PREG_SPLIT_NO_EMPTY);
+			$proxies = is_array($proxies) ? $proxies : array($proxies);
+
+			$this->ip_address = in_array($_SERVER['REMOTE_ADDR'], $proxies) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : $_SERVER['REMOTE_ADDR'];
+		}
+		elseif ($this->server('REMOTE_ADDR') AND $this->server('HTTP_CLIENT_IP'))
+		{
+			$this->ip_address = $_SERVER['HTTP_CLIENT_IP'];
+		}
+		elseif ($this->server('REMOTE_ADDR'))
+		{
+			$this->ip_address = $_SERVER['REMOTE_ADDR'];
+		}
+		elseif ($this->server('HTTP_CLIENT_IP'))
+		{
+			$this->ip_address = $_SERVER['HTTP_CLIENT_IP'];
+		}
+		elseif ($this->server('HTTP_X_FORWARDED_FOR'))
+		{
+			$this->ip_address = $_SERVER['HTTP_X_FORWARDED_FOR'];
+		}
+
+		if ($this->ip_address === FALSE)
+		{
+			$this->ip_address = '0.0.0.0';
+			return $this->ip_address;
+		}
+
+		if (strpos($this->ip_address, ',') !== FALSE)
+		{
+			$x = explode(',', $this->ip_address);
+			$this->ip_address = trim(end($x));
+		}
+
+		if ( ! $this->valid_ip($this->ip_address))
+		{
+			$this->ip_address = '0.0.0.0';
+		}
+
+		return $this->ip_address;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	* Validate IP Address
+	*
+	* Updated version suggested by Geert De Deckere
+	*
+	* @access	public
+	* @param	string
+	* @return	string
+	*/
+	function valid_ip($ip)
+	{
+		$ip_segments = explode('.', $ip);
+
+		// Always 4 segments needed
+		if (count($ip_segments) != 4)
+		{
+			return FALSE;
+		}
+		// IP can not start with 0
+		if ($ip_segments[0][0] == '0')
+		{
+			return FALSE;
+		}
+		// Check each segment
+		foreach ($ip_segments as $segment)
+		{
+			// IP segments must be digits and can not be
+			// longer than 3 digits or greater then 255
+			if ($segment == '' OR preg_match("/[^0-9]/", $segment) OR $segment > 255 OR strlen($segment) > 3)
+			{
+				return FALSE;
+			}
+		}
+
+		return TRUE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	* User Agent
+	*
+	* @access	public
+	* @return	string
+	*/
+	function user_agent()
+	{
+		if ($this->user_agent !== FALSE)
+		{
+			return $this->user_agent;
+		}
+
+		$this->user_agent = ( ! isset($_SERVER['HTTP_USER_AGENT'])) ? FALSE : $_SERVER['HTTP_USER_AGENT'];
+
+		return $this->user_agent;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	* Sanitize Globals
+	*
+	* This function does the following:
+	*
+	* Unsets $_GET data (if query strings are not enabled)
+	*
+	* Unsets all globals if register_globals is enabled
+	*
+	* Standardizes newline characters to \n
+	*
+	* @access	private
+	* @return	void
+	*/
+	function _sanitize_globals()
+	{
+		// It would be "wrong" to unset any of these GLOBALS.
+		$protected = array('_SERVER', '_GET', '_POST', '_FILES', '_REQUEST', 
+							'_SESSION', '_ENV', 'GLOBALS', 'HTTP_RAW_POST_DATA',
+							'system_folder', 'application_folder', 'BM', 'EXT', 
+							'CFG', 'URI', 'RTR', 'OUT', 'IN');
+
+		// Unset globals for securiy.
+		// This is effectively the same as register_globals = off
+		foreach (array($_GET, $_POST, $_COOKIE) as $global)
+		{
+			if ( ! is_array($global))
+			{
+				if ( ! in_array($global, $protected))
+				{
+					global $$global;
+					$$global = NULL;
+				}
+			}
+			else
+			{
+				foreach ($global as $key => $val)
+				{
+					if ( ! in_array($key, $protected))
+					{
+						global $$key;
+						$$key = NULL;
+					}
+				}
+			}
+		}
+
+		// Is $_GET data allowed? If not we'll set the $_GET to an empty array
+		if ($this->_allow_get_array == FALSE)
+		{
+			$_GET = array();
+		}
+		else
+		{
+			if (is_array($_GET) AND count($_GET) > 0)
+			{
+				foreach($_GET as $key => $val)
+				{
+					$_GET[$this->_clean_input_keys($key)] = $this->_clean_input_data($val);
+				}
+			}
+		}
+
+		// Clean $_POST Data
+		if (is_array($_POST) AND count($_POST) > 0)
+		{
+			foreach($_POST as $key => $val)
+			{
+				$_POST[$this->_clean_input_keys($key)] = $this->_clean_input_data($val);
+			}
+		}
+
+		// Clean $_COOKIE Data
+		if (is_array($_COOKIE) AND count($_COOKIE) > 0)
+		{
+			// Also get rid of specially treated cookies that might be set by a server
+			// or silly application, that are of no use to a CI application anyway
+			// but that when present will trip our 'Disallowed Key Characters' alarm
+			// http://www.ietf.org/rfc/rfc2109.txt
+			// note that the key names below are single quoted strings, and are not PHP variables
+			unset($_COOKIE['$Version']);
+			unset($_COOKIE['$Path']);
+			unset($_COOKIE['$Domain']);
+
+			foreach($_COOKIE as $key => $val)
+			{
+				$_COOKIE[$this->_clean_input_keys($key)] = $this->_clean_input_data($val);
+			}
+		}
+
+		// Sanitize PHP_SELF
+		$_SERVER['PHP_SELF'] = strip_tags($_SERVER['PHP_SELF']);
+
+
+		// CSRF Protection check
+		if ($this->_enable_csrf == TRUE)
+		{
+			$this->security->csrf_verify();
+		}
+
+		log_message('debug', "Global POST and COOKIE data sanitized");
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	* Clean Input Data
+	*
+	* This is a helper function. It escapes data and
+	* standardizes newline characters to \n
+	*
+	* @access	private
+	* @param	string
+	* @return	string
+	*/
+	function _clean_input_data($str)
+	{
+		if (is_array($str))
+		{
+			$new_array = array();
+			foreach ($str as $key => $val)
+			{
+				$new_array[$this->_clean_input_keys($key)] = $this->_clean_input_data($val);
+			}
+			return $new_array;
+		}
+
+		// We strip slashes if magic quotes is on to keep things consistent
+		if (function_exists('get_magic_quotes_gpc') AND get_magic_quotes_gpc())
+		{
+			$str = stripslashes($str);
+		}
+
+		// Clean UTF-8 if supported
+		if (UTF8_ENABLED === TRUE)
+		{
+			$str = $this->uni->clean_string($str);
+		}
+
+		// Should we filter the input data?
+		if ($this->_enable_xss === TRUE)
+		{
+			$str = $this->security->xss_clean($str);
+		}
+
+		// Standardize newlines if needed
+		if ($this->_standardize_newlines == TRUE)
+		{
+			if (strpos($str, "\r") !== FALSE)
+			{
+				$str = str_replace(array("\r\n", "\r"), PHP_EOL, $str);
+			}
+		}
+
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	* Clean Keys
+	*
+	* This is a helper function. To prevent malicious users
+	* from trying to exploit keys we make sure that keys are
+	* only named with alpha-numeric text and a few other items.
+	*
+	* @access	private
+	* @param	string
+	* @return	string
+	*/
+	function _clean_input_keys($str)
+	{
+		if ( ! preg_match("/^[a-z0-9:_\/-]+$/i", $str))
+		{
+			exit('Disallowed Key Characters.');
+		}
+
+		// Clean UTF-8 if supported
+		if (UTF8_ENABLED === TRUE)
+		{
+			$str = $this->uni->clean_string($str);
+		}
+
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Request Headers
+	 *
+	 * In Apache, you can simply call apache_request_headers(), however for 
+	 * people running other webservers the function is undefined.
+	 *
+	 * @return array
+	 */
+	public function request_headers($xss_clean = FALSE)
+	{
+		// Look at Apache go!
+		if (function_exists('apache_request_headers'))
+		{
+			$headers = apache_request_headers();
+		}
+		else
+		{
+			$headers['Content-Type'] = (isset($_SERVER['CONTENT_TYPE'])) ? $_SERVER['CONTENT_TYPE'] : @getenv('CONTENT_TYPE');
+
+			foreach ($_SERVER as $key => $val)
+			{
+				if (strncmp($key, 'HTTP_', 5) === 0)
+				{
+					$headers[substr($key, 5)] = $this->_fetch_from_array($_SERVER, $key, $xss_clean);
+				}
+			}
+		}
+
+		// take SOME_HEADER and turn it into Some-Header
+		foreach ($headers as $key => $val)
+		{
+			$key = str_replace('_', ' ', strtolower($key));
+			$key = str_replace(' ', '-', ucwords($key));
+			
+			$this->headers[$key] = $val;
+		}
+		
+		return $this->headers;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Get Request Header
+	 *
+	 * Returns the value of a single member of the headers class member
+	 *
+	 * @param 	string		array key for $this->headers
+	 * @param	boolean		XSS Clean or not
+	 * @return 	mixed		FALSE on failure, string on success
+	 */
+	public function get_request_header($index, $xss_clean = FALSE)
+	{
+		if (empty($this->headers))
+		{
+			$this->request_headers();
+		}
+		
+		if ( ! isset($this->headers[$index]))
+		{
+			return FALSE;
+		}
+
+		if ($xss_clean === TRUE)
+		{
+			$_security =& load_class('Security');
+			return $_security->xss_clean($this->headers[$index]);
+		}
+
+		return $this->headers[$index];		
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Is ajax Request?
+	 *
+	 * Test to see if a request contains the HTTP_X_REQUESTED_WITH header
+	 *
+	 * @return 	boolean
+	 */
+	public function is_ajax_request()
+	{
+		return ($this->server('HTTP_X_REQUESTED_WITH') === 'XMLHttpRequest');
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Is cli Request?
+	 *
+	 * Test to see if a request was made from the command line
+	 *
+	 * @return 	boolean
+	 */
+	public function is_cli_request()
+	{
+		return (bool) defined('STDIN');
+	}
+
+}
+// END Input class
+
+/* End of file Input.php */
+/* Location: ./system/core/Input.php */
\ No newline at end of file
diff --git a/system/libraries/Language.php b/system/core/Lang.php
index 515d04a40..fb177902e 100644..100755
--- a/system/libraries/Language.php
+++ b/system/core/Lang.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -24,7 +24,7 @@
  * @author		ExpressionEngine Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/language.html
  */
-class CI_Language {
+class CI_Lang {
 
 	var $language	= array();
 	var $is_loaded	= array();
@@ -34,7 +34,7 @@ class CI_Language {
 	 *
 	 * @access	public
 	 */
-	function CI_Language()
+	function __construct()
 	{
 		log_message('debug', "Language Class Initialized");
 	}
@@ -49,39 +49,56 @@ class CI_Language {
 	 * @param	string	the language (english, etc.)
 	 * @return	mixed
 	 */
-	function load($langfile = '', $idiom = '', $return = FALSE)
+	function load($langfile = '', $idiom = '', $return = FALSE, $add_suffix = TRUE, $alt_path = '')
 	{
-		$langfile = str_replace(EXT, '', str_replace('_lang.', '', $langfile)).'_lang'.EXT;
+		$langfile = str_replace(EXT, '', $langfile);
+
+		if ($add_suffix == TRUE)
+		{
+			$langfile = str_replace('_lang.', '', $langfile).'_lang';
+		}
+
+		$langfile .= EXT;
 
 		if (in_array($langfile, $this->is_loaded, TRUE))
 		{
 			return;
 		}
 
+		$config =& get_config();
+
 		if ($idiom == '')
 		{
-			$CI =& get_instance();
-			$deft_lang = $CI->config->item('language');
+			$deft_lang = ( ! isset($config['language'])) ? 'english' : $config['language'];
 			$idiom = ($deft_lang == '') ? 'english' : $deft_lang;
 		}
 
 		// Determine where the language file is and load it
-		if (file_exists(APPPATH.'language/'.$idiom.'/'.$langfile))
+		if ($alt_path != '' && file_exists($alt_path.'language/'.$idiom.'/'.$langfile))
 		{
-			include(APPPATH.'language/'.$idiom.'/'.$langfile);
+			include($alt_path.'language/'.$idiom.'/'.$langfile);
 		}
 		else
 		{
-			if (file_exists(BASEPATH.'language/'.$idiom.'/'.$langfile))
+			$found = FALSE;
+
+			foreach (get_instance()->load->get_package_paths(TRUE) as $package_path)
 			{
-				include(BASEPATH.'language/'.$idiom.'/'.$langfile);
+				if (file_exists($package_path.'language/'.$idiom.'/'.$langfile))
+				{
+					include($package_path.'language/'.$idiom.'/'.$langfile);
+					$found = TRUE;
+					break;
+				}
 			}
-			else
+
+			if ($found !== TRUE)
 			{
 				show_error('Unable to load the requested language file: language/'.$idiom.'/'.$langfile);
 			}
 		}
 
+
 		if ( ! isset($lang))
 		{
 			log_message('error', 'Language file contains no data: language/'.$idiom.'/'.$langfile);
@@ -107,7 +124,7 @@ class CI_Language {
 	 * Fetch a single line of text from the language array
 	 *
 	 * @access	public
-	 * @param	string	$line 	the language line
+	 * @param	string	$line	the language line
 	 * @return	string
 	 */
 	function line($line = '')
@@ -119,5 +136,5 @@ class CI_Language {
 }
 // END Language Class
 
-/* End of file Language.php */
-/* Location: ./system/libraries/Language.php */
\ No newline at end of file
+/* End of file Lang.php */
+/* Location: ./system/core/Lang.php */
\ No newline at end of file
diff --git a/system/libraries/Loader.php b/system/core/Loader.php
index 4a03312c4..07166188e 100644..100755
--- a/system/libraries/Loader.php
+++ b/system/core/Loader.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -31,16 +31,17 @@ class CI_Loader {
 	// All these are set automatically. Don't mess with them.
 	var $_ci_ob_level;
 	var $_ci_view_path		= '';
-	var $_ci_is_php5		= FALSE;
-	var $_ci_is_instance 	= FALSE; // Whether we should use $this or $CI =& get_instance()
+	var $_ci_library_paths	= array();
+	var $_ci_model_paths	= array();
+	var $_ci_helper_paths	= array();
+	var $_base_classes		= array(); // Set by the controller class
 	var $_ci_cached_vars	= array();
 	var $_ci_classes		= array();
 	var $_ci_loaded_files	= array();
 	var $_ci_models			= array();
 	var $_ci_helpers		= array();
-	var $_ci_plugins		= array();
 	var $_ci_varmap			= array('unit_test' => 'unit', 'user_agent' => 'agent');
-	
+
 
 	/**
 	 * Constructor
@@ -49,17 +50,19 @@ class CI_Loader {
 	 *
 	 * @access	public
 	 */
-	function CI_Loader()
-	{	
-		$this->_ci_is_php5 = (floor(phpversion()) >= 5) ? TRUE : FALSE;
+	function __construct()
+	{
 		$this->_ci_view_path = APPPATH.'views/';
 		$this->_ci_ob_level  = ob_get_level();
-				
+		$this->_ci_library_paths = array(APPPATH, BASEPATH);
+		$this->_ci_helper_paths = array(APPPATH, BASEPATH);
+		$this->_ci_model_paths = array(APPPATH);
+
 		log_message('debug', "Loader Class Initialized");
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Class Loader
 	 *
@@ -71,15 +74,25 @@ class CI_Loader {
 	 * @param	mixed	the optional parameters
 	 * @param	string	an optional object name
 	 * @return	void
-	 */	
+	 */
 	function library($library = '', $params = NULL, $object_name = NULL)
 	{
-		if ($library == '')
+		if (is_array($library))
+		{
+			foreach($library as $read)
+			{
+				$this->library($read);
+			}
+
+			return;
+		}
+
+		if ($library == '' OR isset($this->_base_classes[$library]))
 		{
 			return FALSE;
 		}
 
-		if ( ! is_null($params) AND ! is_array($params))
+		if ( ! is_null($params) && ! is_array($params))
 		{
 			$params = NULL;
 		}
@@ -95,12 +108,10 @@ class CI_Loader {
 		{
 			$this->_ci_load_class($library, $params, $object_name);
 		}
-		
-		$this->_ci_assign_to_models();
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Model Loader
 	 *
@@ -111,14 +122,14 @@ class CI_Loader {
 	 * @param	string	name for the model
 	 * @param	bool	database connection
 	 * @return	void
-	 */	
+	 */
 	function model($model, $name = '', $db_conn = FALSE)
-	{		
+	{
 		if (is_array($model))
 		{
 			foreach($model as $babe)
 			{
-				$this->model($babe);	
+				$this->model($babe);
 			}
 			return;
 		}
@@ -127,68 +138,75 @@ class CI_Loader {
 		{
 			return;
 		}
-	
+
+		$path = '';
+
 		// Is the model in a sub-folder? If so, parse out the filename and path.
-		if (strpos($model, '/') === FALSE)
+		if (($last_slash = strrpos($model, '/')) !== FALSE)
 		{
-			$path = '';
-		}
-		else
-		{
-			$x = explode('/', $model);
-			$model = end($x);			
-			unset($x[count($x)-1]);
-			$path = implode('/', $x).'/';
+			// The path is in front of the last slash
+			$path = substr($model, 0, $last_slash + 1);
+
+			// And the model name behind it
+			$model = substr($model, $last_slash + 1);
 		}
-	
+
 		if ($name == '')
 		{
 			$name = $model;
 		}
-		
+
 		if (in_array($name, $this->_ci_models, TRUE))
 		{
 			return;
 		}
-		
+
 		$CI =& get_instance();
 		if (isset($CI->$name))
 		{
 			show_error('The model name you are loading is the name of a resource that is already being used: '.$name);
 		}
-	
+
 		$model = strtolower($model);
-		
-		if ( ! file_exists(APPPATH.'models/'.$path.$model.EXT))
-		{
-			show_error('Unable to locate the model you have specified: '.$model);
-		}
-				
-		if ($db_conn !== FALSE AND ! class_exists('CI_DB'))
-		{
-			if ($db_conn === TRUE)
-				$db_conn = '';
-		
-			$CI->load->database($db_conn, FALSE, TRUE);
-		}
-	
-		if ( ! class_exists('Model'))
+
+		foreach ($this->_ci_model_paths as $mod_path)
 		{
-			load_class('Model', FALSE);
-		}
+			if ( ! file_exists($mod_path.'models/'.$path.$model.EXT))
+			{
+				continue;
+			}
 
-		require_once(APPPATH.'models/'.$path.$model.EXT);
+			if ($db_conn !== FALSE AND ! class_exists('CI_DB'))
+			{
+				if ($db_conn === TRUE)
+				{
+					$db_conn = '';
+				}
+
+				$CI->load->database($db_conn, FALSE, TRUE);
+			}
+
+			if ( ! class_exists('CI_Model'))
+			{
+				load_class('Model', 'core');
+			}
+
+			require_once($mod_path.'models/'.$path.$model.EXT);
+
+			$model = ucfirst($model);
 
-		$model = ucfirst($model);
-				
-		$CI->$name = new $model();
-		$CI->$name->_assign_libraries();
-		
-		$this->_ci_models[] = $name;	
+			$CI->$name = new $model();
+
+			$this->_ci_models[] = $name;
+			return;
+		}
+
+		// couldn't find the model
+		show_error('Unable to locate the model you have specified: '.$model);
 	}
-		
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Database Loader
 	 *
@@ -197,94 +215,87 @@ class CI_Loader {
 	 * @param	bool	whether to return the DB object
 	 * @param	bool	whether to enable active record (this allows us to override the config setting)
 	 * @return	object
-	 */	
-	function database($params = '', $return = FALSE, $active_record = FALSE)
+	 */
+	function database($params = '', $return = FALSE, $active_record = NULL)
 	{
 		// Grab the super object
 		$CI =& get_instance();
-		
+
 		// Do we even need to load the database class?
-		if (class_exists('CI_DB') AND $return == FALSE AND $active_record == FALSE AND isset($CI->db) AND is_object($CI->db))
+		if (class_exists('CI_DB') AND $return == FALSE AND $active_record == NULL AND isset($CI->db) AND is_object($CI->db))
 		{
 			return FALSE;
-		}	
-	
+		}
+
 		require_once(BASEPATH.'database/DB'.EXT);
 
 		if ($return === TRUE)
 		{
 			return DB($params, $active_record);
 		}
-		
-		// Initialize the db variable.  Needed to prevent   
+
+		// Initialize the db variable.  Needed to prevent
 		// reference errors with some configurations
 		$CI->db = '';
-		
+
 		// Load the DB class
-		$CI->db =& DB($params, $active_record);	
-		
-		// Assign the DB object to any existing models
-		$this->_ci_assign_to_models();
+		$CI->db =& DB($params, $active_record);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
 	 * Load the Utilities Class
 	 *
 	 * @access	public
-	 * @return	string		
-	 */		
+	 * @return	string
+	 */
 	function dbutil()
 	{
 		if ( ! class_exists('CI_DB'))
 		{
 			$this->database();
 		}
-		
+
 		$CI =& get_instance();
 
 		// for backwards compatibility, load dbforge so we can extend dbutils off it
 		// this use is deprecated and strongly discouraged
 		$CI->load->dbforge();
-	
+
 		require_once(BASEPATH.'database/DB_utility'.EXT);
 		require_once(BASEPATH.'database/drivers/'.$CI->db->dbdriver.'/'.$CI->db->dbdriver.'_utility'.EXT);
 		$class = 'CI_DB_'.$CI->db->dbdriver.'_utility';
 
-		$CI->dbutil =& instantiate_class(new $class());
-
-		$CI->load->_ci_assign_to_models();
+		$CI->dbutil = new $class();
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
 	 * Load the Database Forge Class
 	 *
 	 * @access	public
-	 * @return	string		
-	 */		
+	 * @return	string
+	 */
 	function dbforge()
 	{
 		if ( ! class_exists('CI_DB'))
 		{
 			$this->database();
 		}
-		
+
 		$CI =& get_instance();
-	
+
 		require_once(BASEPATH.'database/DB_forge'.EXT);
 		require_once(BASEPATH.'database/drivers/'.$CI->db->dbdriver.'/'.$CI->db->dbdriver.'_forge'.EXT);
 		$class = 'CI_DB_'.$CI->db->dbdriver.'_forge';
 
 		$CI->dbforge = new $class();
-		
-		$CI->load->_ci_assign_to_models();
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Load View
 	 *
@@ -306,9 +317,9 @@ class CI_Loader {
 	{
 		return $this->_ci_load(array('_ci_view' => $view, '_ci_vars' => $this->_ci_object_to_array($vars), '_ci_return' => $return));
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Load File
 	 *
@@ -323,9 +334,9 @@ class CI_Loader {
 	{
 		return $this->_ci_load(array('_ci_path' => $path, '_ci_return' => $return));
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Variables
 	 *
@@ -342,9 +353,9 @@ class CI_Loader {
 		{
 			$vars = array($vars => $val);
 		}
-	
+
 		$vars = $this->_ci_object_to_array($vars);
-	
+
 		if (is_array($vars) AND count($vars) > 0)
 		{
 			foreach ($vars as $key => $val)
@@ -353,9 +364,9 @@ class CI_Loader {
 			}
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Load Helper
 	 *
@@ -367,58 +378,56 @@ class CI_Loader {
 	 */
 	function helper($helpers = array())
 	{
-		if ( ! is_array($helpers))
+		foreach ($this->_ci_prep_filename($helpers, '_helper') as $helper)
 		{
-			$helpers = array($helpers);
-		}
-	
-		foreach ($helpers as $helper)
-		{		
-			$helper = strtolower(str_replace(EXT, '', str_replace('_helper', '', $helper)).'_helper');
-
 			if (isset($this->_ci_helpers[$helper]))
 			{
 				continue;
 			}
-			
+
 			$ext_helper = APPPATH.'helpers/'.config_item('subclass_prefix').$helper.EXT;
 
-			// Is this a helper extension request?			
+			// Is this a helper extension request?
 			if (file_exists($ext_helper))
 			{
 				$base_helper = BASEPATH.'helpers/'.$helper.EXT;
-				
+
 				if ( ! file_exists($base_helper))
 				{
 					show_error('Unable to load the requested file: helpers/'.$helper.EXT);
 				}
-				
+
 				include_once($ext_helper);
 				include_once($base_helper);
+
+				$this->_ci_helpers[$helper] = TRUE;
+				log_message('debug', 'Helper loaded: '.$helper);
+				continue;
 			}
-			elseif (file_exists(APPPATH.'helpers/'.$helper.EXT))
-			{ 
-				include_once(APPPATH.'helpers/'.$helper.EXT);
-			}
-			else
-			{		
-				if (file_exists(BASEPATH.'helpers/'.$helper.EXT))
-				{
-					include_once(BASEPATH.'helpers/'.$helper.EXT);
-				}
-				else
+
+			// Try to load the helper
+			foreach ($this->_ci_helper_paths as $path)
+			{
+				if (file_exists($path.'helpers/'.$helper.EXT))
 				{
-					show_error('Unable to load the requested file: helpers/'.$helper.EXT);
+					include_once($path.'helpers/'.$helper.EXT);
+
+					$this->_ci_helpers[$helper] = TRUE;
+					log_message('debug', 'Helper loaded: '.$helper);
+					break;
 				}
 			}
 
-			$this->_ci_helpers[$helper] = TRUE;
-			log_message('debug', 'Helper loaded: '.$helper);	
-		}		
+			// unable to load the helper
+			if ( ! isset($this->_ci_helpers[$helper]))
+			{
+				show_error('Unable to load the requested file: helpers/'.$helper.EXT);
+			}
+		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Load Helpers
 	 *
@@ -433,156 +442,167 @@ class CI_Loader {
 	{
 		$this->helper($helpers);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
-	 * Load Plugin
-	 *
-	 * This function loads the specified plugin.
+	 * Loads a language file
 	 *
 	 * @access	public
 	 * @param	array
+	 * @param	string
 	 * @return	void
 	 */
-	function plugin($plugins = array())
+	function language($file = array(), $lang = '')
 	{
-		if ( ! is_array($plugins))
+		$CI =& get_instance();
+
+		if ( ! is_array($file))
 		{
-			$plugins = array($plugins);
+			$file = array($file);
 		}
-	
-		foreach ($plugins as $plugin)
-		{	
-			$plugin = strtolower(str_replace(EXT, '', str_replace('_pi', '', $plugin)).'_pi');		
 
-			if (isset($this->_ci_plugins[$plugin]))
-			{
-				continue;
-			}
-
-			if (file_exists(APPPATH.'plugins/'.$plugin.EXT))
-			{
-				include_once(APPPATH.'plugins/'.$plugin.EXT);	
-			}
-			else
-			{
-				if (file_exists(BASEPATH.'plugins/'.$plugin.EXT))
-				{
-					include_once(BASEPATH.'plugins/'.$plugin.EXT);	
-				}
-				else
-				{
-					show_error('Unable to load the requested file: plugins/'.$plugin.EXT);
-				}
-			}
-			
-			$this->_ci_plugins[$plugin] = TRUE;
-			log_message('debug', 'Plugin loaded: '.$plugin);
-		}		
+		foreach ($file as $langfile)
+		{
+			$CI->lang->load($langfile, $lang);
+		}
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
-	 * Load Plugins
-	 *
-	 * This is simply an alias to the above function in case the
-	 * user has written the plural form of this function.
+	 * Loads a config file
 	 *
 	 * @access	public
-	 * @param	array
+	 * @param	string
 	 * @return	void
 	 */
-	function plugins($plugins = array())
+	function config($file = '', $use_sections = FALSE, $fail_gracefully = FALSE)
 	{
-		$this->plugin($plugins);
+		$CI =& get_instance();
+		$CI->config->load($file, $use_sections, $fail_gracefully);
 	}
-		
+
 	// --------------------------------------------------------------------
-	
+
 	/**
-	 * Loads a language file
+	 * Driver
 	 *
-	 * @access	public
-	 * @param	array
-	 * @param	string
+	 * Loads a driver library
+	 *
+	 * @param	string	the name of the class
+	 * @param	mixed	the optional parameters
+	 * @param	string	an optional object name
 	 * @return	void
 	 */
-	function language($file = array(), $lang = '')
+	function driver($library = '', $params = NULL, $object_name = NULL)
 	{
-		$CI =& get_instance();
-
-		if ( ! is_array($file))
+		if ( ! class_exists('CI_Driver_Library'))
 		{
-			$file = array($file);
+			// we aren't instantiating an object here, that'll be done by the Library itself
+			require BASEPATH.'libraries/Driver'.EXT;
 		}
 
-		foreach ($file as $langfile)
-		{	
-			$CI->lang->load($langfile, $lang);
+		// We can save the loader some time since Drivers will *always* be in a subfolder,
+		// and typically identically named to the library
+		if ( ! strpos($library, '/'))
+		{
+			$library = ucfirst($library).'/'.$library;
 		}
+
+		return $this->library($library, $params, $object_name);
 	}
 
+	// --------------------------------------------------------------------
+
 	/**
-	 * Loads language files for scaffolding
+	 * Add Package Path
+	 *
+	 * Prepends a parent path to the library, model, helper, and config path arrays
 	 *
 	 * @access	public
 	 * @param	string
-	 * @return	arra
+	 * @return	void
 	 */
-	function scaffold_language($file = '', $lang = '', $return = FALSE)
+	function add_package_path($path)
 	{
-		$CI =& get_instance();
-		return $CI->lang->load($file, $lang, $return);
+		$path = rtrim($path, '/').'/';
+
+		array_unshift($this->_ci_library_paths, $path);
+		array_unshift($this->_ci_model_paths, $path);
+		array_unshift($this->_ci_helper_paths, $path);
+
+		// Add config file path
+		$config =& $this->_ci_get_component('config');
+		array_unshift($config->_config_paths, $path);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
-	 * Loads a config file
+	 * Get Package Paths
+	 *
+	 * Return a list of all package paths, by default it will ignore BASEPATH.
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	void
 	 */
-	function config($file = '', $use_sections = FALSE, $fail_gracefully = FALSE)
-	{			
-		$CI =& get_instance();
-		$CI->config->load($file, $use_sections, $fail_gracefully);
+	function get_package_paths($include_base = FALSE)
+	{
+		return $include_base === TRUE ? $this->_ci_library_paths : $this->_ci_model_paths;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
-	 * Scaffolding Loader
+	 * Remove Package Path
 	 *
-	 * This initializing function works a bit different than the
-	 * others. It doesn't load the class.  Instead, it simply
-	 * sets a flag indicating that scaffolding is allowed to be
-	 * used.  The actual scaffolding function below is
-	 * called by the front controller based on whether the
-	 * second segment of the URL matches the "secret" scaffolding
-	 * word stored in the application/config/routes.php
+	 * Remove a path from the library, model, and helper path arrays if it exists
+	 * If no path is provided, the most recently added path is removed.
 	 *
 	 * @access	public
-	 * @param	string
-	 * @return	void
-	 */	
-	function scaffolding($table = '')
-	{		
-		if ($table === FALSE)
+	 * @param	type
+	 * @return	type
+	 */
+	function remove_package_path($path = '', $remove_config_path = TRUE)
+	{
+		$config =& $this->_ci_get_component('config');
+
+		if ($path == '')
 		{
-			show_error('You must include the name of the table you would like to access when you initialize scaffolding');
+			$void = array_shift($this->_ci_library_paths);
+			$void = array_shift($this->_ci_model_paths);
+			$void = array_shift($this->_ci_helper_paths);
+			$void = array_shift($config->_config_paths);
 		}
-		
-		$CI =& get_instance();
-		$CI->_ci_scaffolding = TRUE;
-		$CI->_ci_scaff_table = $table;
+		else
+		{
+			$path = rtrim($path, '/').'/';
+
+			foreach (array('_ci_library_paths', '_ci_model_paths', '_ci_helper_paths') as $var)
+			{
+				if (($key = array_search($path, $this->{$var})) !== FALSE)
+				{
+					unset($this->{$var}[$key]);
+				}
+			}
+
+			if (($key = array_search($path, $config->_config_paths)) !== FALSE)
+			{
+				unset($config->_config_paths[$key]);
+			}
+		}
+
+		// make sure the application default paths are still in the array
+		$this->_ci_library_paths = array_unique(array_merge($this->_ci_library_paths, array(APPPATH, BASEPATH)));
+		$this->_ci_helper_paths = array_unique(array_merge($this->_ci_helper_paths, array(APPPATH, BASEPATH)));
+		$this->_ci_model_paths = array_unique(array_merge($this->_ci_model_paths, array(APPPATH)));
+		$config->_config_paths = array_unique(array_merge($config->_config_paths, array(APPPATH)));
 	}
 
 	// --------------------------------------------------------------------
-		
+
 	/**
 	 * Loader
 	 *
@@ -614,25 +634,21 @@ class CI_Loader {
 			$_ci_x = explode('/', $_ci_path);
 			$_ci_file = end($_ci_x);
 		}
-		
+
 		if ( ! file_exists($_ci_path))
 		{
 			show_error('Unable to load the requested file: '.$_ci_file);
 		}
-	
+
 		// This allows anything loaded using $this->load (views, files, etc.)
 		// to become accessible from within the Controller and Model functions.
-		// Only needed when running PHP 5
-		
-		if ($this->_ci_is_instance())
+
+		$_ci_CI =& get_instance();
+		foreach (get_object_vars($_ci_CI) as $_ci_key => $_ci_var)
 		{
-			$_ci_CI =& get_instance();
-			foreach (get_object_vars($_ci_CI) as $_ci_key => $_ci_var)
+			if ( ! isset($this->$_ci_key))
 			{
-				if ( ! isset($this->$_ci_key))
-				{
-					$this->$_ci_key =& $_ci_CI->$_ci_key;
-				}
+				$this->$_ci_key =& $_ci_CI->$_ci_key;
 			}
 		}
 
@@ -643,13 +659,13 @@ class CI_Loader {
 		 * function or via the second parameter of this function. We'll merge
 		 * the two types and cache them so that views that are embedded within
 		 * other views can have access to these variables.
-		 */	
+		 */
 		if (is_array($_ci_vars))
 		{
 			$this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $_ci_vars);
 		}
 		extract($this->_ci_cached_vars);
-				
+
 		/*
 		 * Buffer the output
 		 *
@@ -663,11 +679,11 @@ class CI_Loader {
 		 * the browser and then stop the timer it won't be accurate.
 		 */
 		ob_start();
-				
+
 		// If the PHP installation does not support short tags we'll
 		// do a little string replacement, changing the short tags
 		// to standard PHP echo statements.
-		
+
 		if ((bool) @ini_get('short_open_tag') === FALSE AND config_item('rewrite_short_tags') == TRUE)
 		{
 			echo eval('?>'.preg_replace("/;*\s*\?>/", "; ?>", str_replace('<?=', '<?php echo ', file_get_contents($_ci_path))));
@@ -676,12 +692,12 @@ class CI_Loader {
 		{
 			include($_ci_path); // include() vs include_once() allows for multiple views with the same name
 		}
-		
+
 		log_message('debug', 'File loaded: '.$_ci_path);
-		
+
 		// Return the file data if requested
 		if ($_ci_return === TRUE)
-		{		
+		{
 			$buffer = ob_get_contents();
 			@ob_end_clean();
 			return $buffer;
@@ -696,16 +712,14 @@ class CI_Loader {
 		 * it can be seen and included properly by the first included
 		 * template and any subsequent ones. Oy!
 		 *
-		 */	
+		 */
 		if (ob_get_level() > $this->_ci_ob_level + 1)
 		{
 			ob_end_flush();
 		}
 		else
 		{
-			// PHP 4 requires that we use a global
-			global $OUT;
-			$OUT->append_output(ob_get_contents());
+			$_ci_CI->output->append_output(ob_get_contents());
 			@ob_end_clean();
 		}
 	}
@@ -718,34 +732,28 @@ class CI_Loader {
 	 * This function loads the requested class.
 	 *
 	 * @access	private
-	 * @param 	string	the item that is being loaded
+	 * @param	string	the item that is being loaded
 	 * @param	mixed	any additional parameters
 	 * @param	string	an optional object name
-	 * @return 	void
+	 * @return	void
 	 */
 	function _ci_load_class($class, $params = NULL, $object_name = NULL)
-	{	
-		// Get the class name, and while we're at it trim any slashes.  
-		// The directory path can be included as part of the class name, 
+	{
+		// Get the class name, and while we're at it trim any slashes.
+		// The directory path can be included as part of the class name,
 		// but we don't want a leading slash
 		$class = str_replace(EXT, '', trim($class, '/'));
-	
+
 		// Was the path included with the class name?
 		// We look for a slash to determine this
 		$subdir = '';
-		if (strpos($class, '/') !== FALSE)
+		if (($last_slash = strrpos($class, '/')) !== FALSE)
 		{
-			// explode the path so we can separate the filename from the path
-			$x = explode('/', $class);	
-			
-			// Reset the $class variable now that we know the actual filename
-			$class = end($x);
-			
-			// Kill the filename from the array
-			unset($x[count($x)-1]);
-			
-			// Glue the path back together, sans filename
-			$subdir = implode($x, '/').'/';
+			// Extract the path
+			$subdir = substr($class, 0, $last_slash + 1);
+
+			// Get the filename from the path
+			$class = substr($class, $last_slash + 1);
 		}
 
 		// We'll test for both lowercase and capitalized versions of the file name
@@ -753,11 +761,11 @@ class CI_Loader {
 		{
 			$subclass = APPPATH.'libraries/'.$subdir.config_item('subclass_prefix').$class.EXT;
 
-			// Is this a class extension request?			
+			// Is this a class extension request?
 			if (file_exists($subclass))
 			{
 				$baseclass = BASEPATH.'libraries/'.ucfirst($class).EXT;
-				
+
 				if ( ! file_exists($baseclass))
 				{
 					log_message('error', "Unable to load the requested class: ".$class);
@@ -775,35 +783,34 @@ class CI_Loader {
 						$CI =& get_instance();
 						if ( ! isset($CI->$object_name))
 						{
-							return $this->_ci_init_class($class, config_item('subclass_prefix'), $params, $object_name);			
+							return $this->_ci_init_class($class, config_item('subclass_prefix'), $params, $object_name);
 						}
 					}
-					
+
 					$is_duplicate = TRUE;
 					log_message('debug', $class." class already loaded. Second attempt ignored.");
 					return;
 				}
-	
-				include_once($baseclass);				
+
+				include_once($baseclass);
 				include_once($subclass);
 				$this->_ci_loaded_files[] = $subclass;
-	
-				return $this->_ci_init_class($class, config_item('subclass_prefix'), $params, $object_name);			
+
+				return $this->_ci_init_class($class, config_item('subclass_prefix'), $params, $object_name);
 			}
-		
+
 			// Lets search for the requested library file and load it.
-			$is_duplicate = FALSE;		
-			for ($i = 1; $i < 3; $i++)
+			$is_duplicate = FALSE;
+			foreach ($this->_ci_library_paths as $path)
 			{
-				$path = ($i % 2) ? APPPATH : BASEPATH;	
 				$filepath = $path.'libraries/'.$subdir.$class.EXT;
-				
+
 				// Does the file exist?  No?  Bummer...
 				if ( ! file_exists($filepath))
 				{
 					continue;
 				}
-				
+
 				// Safety:  Was the class already loaded by a previous call?
 				if (in_array($filepath, $this->_ci_loaded_files))
 				{
@@ -818,16 +825,17 @@ class CI_Loader {
 							return $this->_ci_init_class($class, '', $params, $object_name);
 						}
 					}
-				
+
 					$is_duplicate = TRUE;
 					log_message('debug', $class." class already loaded. Second attempt ignored.");
 					return;
 				}
-				
+
 				include_once($filepath);
 				$this->_ci_loaded_files[] = $filepath;
 				return $this->_ci_init_class($class, '', $params, $object_name);
 			}
+
 		} // END FOREACH
 
 		// One last attempt.  Maybe the library is in a subdirectory, but it wasn't specified?
@@ -836,7 +844,7 @@ class CI_Loader {
 			$path = strtolower($class).'/'.$class;
 			return $this->_ci_load_class($path, $params);
 		}
-		
+
 		// If we got this far we were unable to find the requested class.
 		// We do not issue errors if the load call failed due to a duplicate request
 		if ($is_duplicate == FALSE)
@@ -845,7 +853,7 @@ class CI_Loader {
 			show_error("Unable to load the requested class: ".$class);
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -858,29 +866,42 @@ class CI_Loader {
 	 * @return	null
 	 */
 	function _ci_init_class($class, $prefix = '', $config = FALSE, $object_name = NULL)
-	{	
-		// Is there an associated config file for this class?
+	{
+		// Is there an associated config file for this class?  Note: these should always be lowercase
 		if ($config === NULL)
 		{
-			// We test for both uppercase and lowercase, for servers that
-			// are case-sensitive with regard to file names
-			if (file_exists(APPPATH.'config/'.strtolower($class).EXT))
-			{
-				include_once(APPPATH.'config/'.strtolower($class).EXT);
-			}			
-			elseif (file_exists(APPPATH.'config/'.ucfirst(strtolower($class)).EXT))
+			// Fetch the config paths containing any package paths
+			$config_component = $this->_ci_get_component('config');
+
+			if (is_array($config_component->_config_paths))
 			{
-				include_once(APPPATH.'config/'.ucfirst(strtolower($class)).EXT);
+				// Break on the first found file, thus package files
+				// are not overridden by default paths
+				foreach ($config_component->_config_paths as $path)
+				{
+					// We test for both uppercase and lowercase, for servers that
+					// are case-sensitive with regard to file names
+					if (file_exists($path .'config/'.strtolower($class).EXT))
+					{
+						include_once($path .'config/'.strtolower($class).EXT);
+						break;
+					}
+					elseif (file_exists($path .'config/'.ucfirst(strtolower($class)).EXT))
+					{
+						include_once($path .'config/'.ucfirst(strtolower($class)).EXT);
+						break;
+					}
+				}
 			}
 		}
-		
+
 		if ($prefix == '')
-		{			
-			if (class_exists('CI_'.$class)) 
+		{
+			if (class_exists('CI_'.$class))
 			{
 				$name = 'CI_'.$class;
 			}
-			elseif (class_exists(config_item('subclass_prefix').$class)) 
+			elseif (class_exists(config_item('subclass_prefix').$class))
 			{
 				$name = config_item('subclass_prefix').$class;
 			}
@@ -893,18 +914,18 @@ class CI_Loader {
 		{
 			$name = $prefix.$class;
 		}
-		
+
 		// Is the class name valid?
 		if ( ! class_exists($name))
 		{
 			log_message('error', "Non-existent class: ".$name);
 			show_error("Non-existent class: ".$class);
 		}
-		
+
 		// Set the variable name we will assign the class to
 		// Was a custom class name supplied?  If so we'll use it
 		$class = strtolower($class);
-		
+
 		if (is_null($object_name))
 		{
 			$classvar = ( ! isset($this->_ci_varmap[$class])) ? $class : $this->_ci_varmap[$class];
@@ -914,68 +935,77 @@ class CI_Loader {
 			$classvar = $object_name;
 		}
 
-		// Save the class name and object name		
+		// Save the class name and object name
 		$this->_ci_classes[$class] = $classvar;
 
-		// Instantiate the class		
+		// Instantiate the class
 		$CI =& get_instance();
 		if ($config !== NULL)
 		{
 			$CI->$classvar = new $name($config);
 		}
 		else
-		{		
+		{
 			$CI->$classvar = new $name;
-		}	
-	} 	
-	
+		}
+	}
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Autoloader
 	 *
 	 * The config/autoload.php file contains an array that permits sub-systems,
-	 * libraries, plugins, and helpers to be loaded automatically.
+	 * libraries, and helpers to be loaded automatically.
 	 *
 	 * @access	private
 	 * @param	array
 	 * @return	void
 	 */
 	function _ci_autoloader()
-	{	
+	{
 		include_once(APPPATH.'config/autoload'.EXT);
-		
+
 		if ( ! isset($autoload))
 		{
 			return FALSE;
 		}
-		
+
+		// Autoload packages
+		if (isset($autoload['packages']))
+		{
+			foreach ($autoload['packages'] as $package_path)
+			{
+				$this->add_package_path($package_path);
+			}
+		}
+
 		// Load any custom config file
 		if (count($autoload['config']) > 0)
-		{			
+		{
 			$CI =& get_instance();
 			foreach ($autoload['config'] as $key => $val)
 			{
 				$CI->config->load($val);
 			}
-		}		
+		}
 
-		// Autoload plugins, helpers and languages
-		foreach (array('helper', 'plugin', 'language') as $type)
-		{			
+		// Autoload helpers and languages
+		foreach (array('helper', 'language') as $type)
+		{
 			if (isset($autoload[$type]) AND count($autoload[$type]) > 0)
 			{
 				$this->$type($autoload[$type]);
-			}		
+			}
 		}
 
 		// A little tweak to remain backward compatible
 		// The $autoload['core'] item was deprecated
-		if ( ! isset($autoload['libraries']))
+		if ( ! isset($autoload['libraries']) AND isset($autoload['core']))
 		{
 			$autoload['libraries'] = $autoload['core'];
 		}
-		
+
 		// Load libraries
 		if (isset($autoload['libraries']) AND count($autoload['libraries']) > 0)
 		{
@@ -986,100 +1016,80 @@ class CI_Loader {
 				$autoload['libraries'] = array_diff($autoload['libraries'], array('database'));
 			}
 
-			// Load scaffolding
-			if (in_array('scaffolding', $autoload['libraries']))
-			{
-				$this->scaffolding();
-				$autoload['libraries'] = array_diff($autoload['libraries'], array('scaffolding'));
-			}
-		
 			// Load all other libraries
 			foreach ($autoload['libraries'] as $item)
 			{
 				$this->library($item);
 			}
-		}		
+		}
 
 		// Autoload models
 		if (isset($autoload['model']))
 		{
 			$this->model($autoload['model']);
 		}
-
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
-	 * Assign to Models
+	 * Object to Array
 	 *
-	 * Makes sure that anything loaded by the loader class (libraries, plugins, etc.)
-	 * will be available to models, if any exist.
+	 * Takes an object as input and converts the class variables to array key/vals
 	 *
 	 * @access	private
 	 * @param	object
 	 * @return	array
 	 */
-	function _ci_assign_to_models()
+	function _ci_object_to_array($object)
 	{
-		if (count($this->_ci_models) == 0)
-		{
-			return;
-		}
-	
-		if ($this->_ci_is_instance())
-		{
-			$CI =& get_instance();
-			foreach ($this->_ci_models as $model)
-			{			
-				$CI->$model->_assign_libraries();
-			}
-		}
-		else
-		{		
-			foreach ($this->_ci_models as $model)
-			{			
-				$this->$model->_assign_libraries();
-			}
-		}
-	}  	
+		return (is_object($object)) ? get_object_vars($object) : $object;
+	}
 
 	// --------------------------------------------------------------------
 
 	/**
-	 * Object to Array
-	 *
-	 * Takes an object as input and converts the class variables to array key/vals
+	 * Get a reference to a specific library or model
 	 *
 	 * @access	private
-	 * @param	object
-	 * @return	array
+	 * @return	bool
 	 */
-	function _ci_object_to_array($object)
+	function &_ci_get_component($component)
 	{
-		return (is_object($object)) ? get_object_vars($object) : $object;
+		$CI =& get_instance();
+		return $CI->$component;
 	}
 
 	// --------------------------------------------------------------------
 
 	/**
-	 * Determines whether we should use the CI instance or $this
+	 * Prep filename
+	 *
+	 * This function preps the name of various items to make loading them more reliable.
 	 *
 	 * @access	private
-	 * @return	bool
+	 * @param	mixed
+	 * @return	array
 	 */
-	function _ci_is_instance()
+	function _ci_prep_filename($filename, $extension)
 	{
-		if ($this->_ci_is_php5 == TRUE)
+		if ( ! is_array($filename))
 		{
-			return TRUE;
+			return array(strtolower(str_replace(EXT, '', str_replace($extension, '', $filename)).$extension));
+		}
+		else
+		{
+			foreach ($filename as $key => $val)
+			{
+				$filename[$key] = strtolower(str_replace(EXT, '', str_replace($extension, '', $val)).$extension);
+			}
+
+			return $filename;
 		}
-	
-		global $CI;
-		return (is_object($CI)) ? TRUE : FALSE;
 	}
 
+
 }
 
 /* End of file Loader.php */
-/* Location: ./system/libraries/Loader.php */
\ No newline at end of file
+/* Location: ./system/core/Loader.php */
\ No newline at end of file
diff --git a/system/core/Model.php b/system/core/Model.php
new file mode 100755
index 000000000..8566a0b66
--- /dev/null
+++ b/system/core/Model.php
@@ -0,0 +1,56 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter Model Class
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Libraries
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/libraries/config.html
+ */
+class CI_Model {
+
+	/**
+	 * Constructor
+	 *
+	 * @access public
+	 */
+	function __construct()
+	{
+		log_message('debug', "Model Class Initialized");
+	}
+
+	/**
+	 * __get
+	 *
+	 * Allows models to access CI's loaded classes using the same
+	 * syntax as controllers.
+	 *
+	 * @access private
+	 */
+	function __get($key)
+	{
+		$CI =& get_instance();
+		return $CI->$key;
+	}
+}
+// END Model Class
+
+/* End of file Model.php */
+/* Location: ./system/core/Model.php */
\ No newline at end of file
diff --git a/system/libraries/Output.php b/system/core/Output.php
index f320b4142..7fb9f7916 100644..100755
--- a/system/libraries/Output.php
+++ b/system/core/Output.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -30,17 +30,22 @@ class CI_Output {
 
 	var $final_output;
 	var $cache_expiration	= 0;
-	var $headers 			= array();
-	var $enable_profiler 	= FALSE;
+	var $headers			= array();
+	var $enable_profiler	= FALSE;
+	var $parse_exec_vars	= TRUE;	// whether or not to parse variables like {elapsed_time} and {memory_usage}
 
+	var $_zlib_oc			= FALSE;
+	var $_profiler_sections = array();
 
-	function CI_Output()
+	function __construct()
 	{
+		$this->_zlib_oc = @ini_get('zlib.output_compression');
+
 		log_message('debug', "Output Class Initialized");
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get Output
 	 *
@@ -48,14 +53,14 @@ class CI_Output {
 	 *
 	 * @access	public
 	 * @return	string
-	 */	
+	 */
 	function get_output()
 	{
 		return $this->final_output;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Output
 	 *
@@ -64,7 +69,7 @@ class CI_Output {
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_output($output)
 	{
 		$this->final_output = $output;
@@ -80,7 +85,7 @@ class CI_Output {
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function append_output($output)
 	{
 		if ($this->final_output == '')
@@ -106,58 +111,87 @@ class CI_Output {
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_header($header, $replace = TRUE)
 	{
+		// If zlib.output_compression is enabled it will compress the output,
+		// but it will not modify the content-length header to compensate for
+		// the reduction, causing the browser to hang waiting for more data.
+		// We'll just skip content-length in those cases.
+
+		if ($this->_zlib_oc && strncasecmp($header, 'content-length', 14) == 0)
+		{
+			return;
+		}
+
 		$this->headers[] = array($header, $replace);
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set HTTP Status Header
 	 * moved to Common procedural functions in 1.7.2
-	 * 
+	 *
 	 * @access	public
-	 * @param	int 	the status code
-	 * @param	string	
+	 * @param	int		the status code
+	 * @param	string
 	 * @return	void
-	 */	
-	function set_status_header($code = '200', $text = '')
+	 */
+	function set_status_header($code = 200, $text = '')
 	{
 		set_status_header($code, $text);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Enable/disable Profiler
 	 *
 	 * @access	public
 	 * @param	bool
 	 * @return	void
-	 */	
+	 */
 	function enable_profiler($val = TRUE)
 	{
 		$this->enable_profiler = (is_bool($val)) ? $val : TRUE;
 	}
-	
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Set Profiler Sections
+	 *
+	 * Allows override of default / config settings for Profiler section display
+	 *
+	 * @access	public
+	 * @param	array
+	 * @return	void
+	 */
+	function set_profiler_sections($sections)
+	{
+		foreach ($sections as $section => $enable)
+		{
+			$this->_profiler_sections[$section] = ($enable !== FALSE) ? TRUE : FALSE;
+		}
+	}
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Cache
 	 *
 	 * @access	public
 	 * @param	integer
 	 * @return	void
-	 */	
+	 */
 	function cache($time)
 	{
 		$this->cache_expiration = ( ! is_numeric($time)) ? 0 : $time;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Display Output
 	 *
@@ -171,45 +205,57 @@ class CI_Output {
 	 *
 	 * @access	public
 	 * @return	mixed
-	 */		
+	 */
 	function _display($output = '')
-	{	
+	{
 		// Note:  We use globals because we can't use $CI =& get_instance()
 		// since this function is sometimes called by the caching mechanism,
 		// which happens before the CI super object is available.
 		global $BM, $CFG;
-		
+
+		// Grab the super object if we can.
+		if (class_exists('CI_Controller'))
+		{
+			$CI =& get_instance();
+		}
+
 		// --------------------------------------------------------------------
-		
+
 		// Set the output data
 		if ($output == '')
 		{
 			$output =& $this->final_output;
 		}
-		
+
 		// --------------------------------------------------------------------
-		
-		// Do we need to write a cache file?
-		if ($this->cache_expiration > 0)
+
+		// Do we need to write a cache file?  Only if the controller does not have its
+		// own _output() method and we are not dealing with a cache file, which we
+		// can determine by the existence of the $CI object above
+		if ($this->cache_expiration > 0 && isset($CI) && ! method_exists($CI, '_output'))
 		{
 			$this->_write_cache($output);
 		}
-		
+
 		// --------------------------------------------------------------------
 
 		// Parse out the elapsed time and memory usage,
 		// then swap the pseudo-variables with the data
 
-		$elapsed = $BM->elapsed_time('total_execution_time_start', 'total_execution_time_end');		
-		$output = str_replace('{elapsed_time}', $elapsed, $output);
-		
-		$memory	 = ( ! function_exists('memory_get_usage')) ? '0' : round(memory_get_usage()/1024/1024, 2).'MB';
-		$output = str_replace('{memory_usage}', $memory, $output);		
+		$elapsed = $BM->elapsed_time('total_execution_time_start', 'total_execution_time_end');
+
+		if ($this->parse_exec_vars === TRUE)
+		{
+			$memory	 = ( ! function_exists('memory_get_usage')) ? '0' : round(memory_get_usage()/1024/1024, 2).'MB';
+
+			$output = str_replace('{elapsed_time}', $elapsed, $output);
+			$output = str_replace('{memory_usage}', $memory, $output);
+		}
 
 		// --------------------------------------------------------------------
-		
+
 		// Is compression requested?
-		if ($CFG->item('compress_output') === TRUE)
+		if ($CFG->item('compress_output') === TRUE && $this->_zlib_oc == FALSE)
 		{
 			if (extension_loaded('zlib'))
 			{
@@ -221,7 +267,7 @@ class CI_Output {
 		}
 
 		// --------------------------------------------------------------------
-		
+
 		// Are there any server headers to send?
 		if (count($this->headers) > 0)
 		{
@@ -229,32 +275,34 @@ class CI_Output {
 			{
 				@header($header[0], $header[1]);
 			}
-		}		
+		}
 
 		// --------------------------------------------------------------------
-		
-		// Does the get_instance() function exist?
+
+		// Does the $CI object exist?
 		// If not we know we are dealing with a cache file so we'll
 		// simply echo out the data and exit.
-		if ( ! function_exists('get_instance'))
+		if ( ! isset($CI))
 		{
 			echo $output;
 			log_message('debug', "Final output sent to browser");
 			log_message('debug', "Total execution time: ".$elapsed);
 			return TRUE;
 		}
-	
+
 		// --------------------------------------------------------------------
 
-		// Grab the super object.  We'll need it in a moment...
-		$CI =& get_instance();
-		
 		// Do we need to generate profile data?
 		// If so, load the Profile class and run it.
 		if ($this->enable_profiler == TRUE)
 		{
-			$CI->load->library('profiler');				
-										
+			$CI->load->library('profiler');
+
+			if ( ! empty($this->_profiler_sections))
+			{
+				$CI->profiler->set_sections($this->_profiler_sections);
+			}
+
 			// If the output data contains closing </body> and </html> tags
 			// we will remove them and add them back after we insert the profile data
 			if (preg_match("|</body>.*?</html>|is", $output))
@@ -268,7 +316,7 @@ class CI_Output {
 				$output .= $CI->profiler->run();
 			}
 		}
-		
+
 		// --------------------------------------------------------------------
 
 		// Does the controller contain a function named _output()?
@@ -281,35 +329,36 @@ class CI_Output {
 		{
 			echo $output;  // Send it to the browser!
 		}
-		
+
 		log_message('debug', "Final output sent to browser");
-		log_message('debug', "Total execution time: ".$elapsed);		
+		log_message('debug', "Total execution time: ".$elapsed);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Write a Cache File
 	 *
 	 * @access	public
 	 * @return	void
-	 */	
+	 */
 	function _write_cache($output)
 	{
-		$CI =& get_instance();	
+		$CI =& get_instance();
 		$path = $CI->config->item('cache_path');
-	
-		$cache_path = ($path == '') ? BASEPATH.'cache/' : $path;
-		
+
+		$cache_path = ($path == '') ? APPPATH.'cache/' : $path;
+
 		if ( ! is_dir($cache_path) OR ! is_really_writable($cache_path))
 		{
+			log_message('error', "Unable to write cache file: ".$cache_path);
 			return;
 		}
-		
+
 		$uri =	$CI->config->item('base_url').
 				$CI->config->item('index_page').
 				$CI->uri->uri_string();
-		
+
 		$cache_path .= md5($uri);
 
 		if ( ! $fp = @fopen($cache_path, FOPEN_WRITE_CREATE_DESTRUCTIVE))
@@ -317,9 +366,9 @@ class CI_Output {
 			log_message('error', "Unable to write cache file: ".$cache_path);
 			return;
 		}
-		
+
 		$expire = time() + ($this->cache_expiration * 60);
-		
+
 		if (flock($fp, LOCK_EX))
 		{
 			fwrite($fp, $expire.'TS--->'.$output);
@@ -331,73 +380,71 @@ class CI_Output {
 			return;
 		}
 		fclose($fp);
-		@chmod($cache_path, DIR_WRITE_MODE);
+		@chmod($cache_path, FILE_WRITE_MODE);
 
 		log_message('debug', "Cache file written: ".$cache_path);
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Update/serve a cached file
 	 *
 	 * @access	public
 	 * @return	void
-	 */	
+	 */
 	function _display_cache(&$CFG, &$URI)
 	{
-		$cache_path = ($CFG->item('cache_path') == '') ? BASEPATH.'cache/' : $CFG->item('cache_path');
-			
-		if ( ! is_dir($cache_path) OR ! is_really_writable($cache_path))
-		{
-			return FALSE;
-		}
-		
+		$cache_path = ($CFG->item('cache_path') == '') ? APPPATH.'cache/' : $CFG->item('cache_path');
+
 		// Build the file path.  The file name is an MD5 hash of the full URI
 		$uri =	$CFG->item('base_url').
 				$CFG->item('index_page').
 				$URI->uri_string;
-				
+
 		$filepath = $cache_path.md5($uri);
-		
+
 		if ( ! @file_exists($filepath))
 		{
 			return FALSE;
 		}
-	
+
 		if ( ! $fp = @fopen($filepath, FOPEN_READ))
 		{
 			return FALSE;
 		}
-			
+
 		flock($fp, LOCK_SH);
-		
+
 		$cache = '';
 		if (filesize($filepath) > 0)
 		{
 			$cache = fread($fp, filesize($filepath));
 		}
-	
+
 		flock($fp, LOCK_UN);
 		fclose($fp);
-					
-		// Strip out the embedded timestamp		
+
+		// Strip out the embedded timestamp
 		if ( ! preg_match("/(\d+TS--->)/", $cache, $match))
 		{
 			return FALSE;
 		}
-		
+
 		// Has the file expired? If so we'll delete it.
 		if (time() >= trim(str_replace('TS--->', '', $match['1'])))
-		{ 		
-			@unlink($filepath);
-			log_message('debug', "Cache file has expired. File deleted");
-			return FALSE;
+		{
+			if (is_really_writable($cache_path))
+			{
+				@unlink($filepath);
+				log_message('debug', "Cache file has expired. File deleted");
+				return FALSE;
+			}
 		}
 
 		// Display the cache
 		$this->_display(str_replace($match['0'], '', $cache));
-		log_message('debug', "Cache file is current. Sending it to browser.");		
+		log_message('debug', "Cache file is current. Sending it to browser.");
 		return TRUE;
 	}
 
@@ -406,4 +453,4 @@ class CI_Output {
 // END Output Class
 
 /* End of file Output.php */
-/* Location: ./system/libraries/Output.php */
\ No newline at end of file
+/* Location: ./system/core/Output.php */
\ No newline at end of file
diff --git a/system/libraries/Router.php b/system/core/Router.php
index 7dbad0374..7be508fef 100644..100755
--- a/system/libraries/Router.php
+++ b/system/core/Router.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -28,31 +28,28 @@
  */
 class CI_Router {
 
-	var $config;	
-	var $routes 		= array();
+	var $config;
+	var $routes			= array();
 	var $error_routes	= array();
 	var $class			= '';
 	var $method			= 'index';
 	var $directory		= '';
-	var $uri_protocol 	= 'auto';
 	var $default_controller;
-	var $scaffolding_request = FALSE; // Must be set to FALSE
-	
+
 	/**
 	 * Constructor
 	 *
 	 * Runs the route mapping function.
 	 */
-	function CI_Router()
+	function __construct()
 	{
-		$this->config =& load_class('Config');
-		$this->uri =& load_class('URI');
-		$this->_set_routing();
+		$this->config =& load_class('Config', 'core');
+		$this->uri =& load_class('URI', 'core');
 		log_message('debug', "Router Class Initialized");
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the route mapping
 	 *
@@ -64,20 +61,31 @@ class CI_Router {
 	 */
 	function _set_routing()
 	{
-		// Are query strings enabled in the config file?
-		// If so, we're done since segment based URIs are not used with query strings.
+		// Are query strings enabled in the config file?  Normally CI doesn't utilize query strings
+		// since URI segments are more search-engine friendly, but they can optionally be used.
+		// If this feature is enabled, we will gather the directory/class/method a little differently
+		$segments = array();
 		if ($this->config->item('enable_query_strings') === TRUE AND isset($_GET[$this->config->item('controller_trigger')]))
 		{
-			$this->set_class(trim($this->uri->_filter_uri($_GET[$this->config->item('controller_trigger')])));
+			if (isset($_GET[$this->config->item('directory_trigger')]))
+			{
+				$this->set_directory(trim($this->uri->_filter_uri($_GET[$this->config->item('directory_trigger')])));
+				$segments[] = $this->fetch_directory();
+			}
+
+			if (isset($_GET[$this->config->item('controller_trigger')]))
+			{
+				$this->set_class(trim($this->uri->_filter_uri($_GET[$this->config->item('controller_trigger')])));
+				$segments[] = $this->fetch_class();
+			}
 
 			if (isset($_GET[$this->config->item('function_trigger')]))
 			{
 				$this->set_method(trim($this->uri->_filter_uri($_GET[$this->config->item('function_trigger')])));
+				$segments[] = $this->fetch_method();
 			}
-			
-			return;
 		}
-		
+
 		// Load the routes.php file.
 		@include(APPPATH.'config/routes'.EXT);
 		$this->routes = ( ! isset($route) OR ! is_array($route)) ? array() : $route;
@@ -85,57 +93,74 @@ class CI_Router {
 
 		// Set the default controller so we can display it in the event
 		// the URI doesn't correlated to a valid controller.
-		$this->default_controller = ( ! isset($this->routes['default_controller']) OR $this->routes['default_controller'] == '') ? FALSE : strtolower($this->routes['default_controller']);	
-		
+		$this->default_controller = ( ! isset($this->routes['default_controller']) OR $this->routes['default_controller'] == '') ? FALSE : strtolower($this->routes['default_controller']);
+
+		// Were there any query string segments?  If so, we'll validate them and bail out since we're done.
+		if (count($segments) > 0)
+		{
+			return $this->_validate_request($segments);
+		}
+
 		// Fetch the complete URI string
 		$this->uri->_fetch_uri_string();
-	
+
 		// Is there a URI string? If not, the default controller specified in the "routes" file will be shown.
 		if ($this->uri->uri_string == '')
 		{
-			if ($this->default_controller === FALSE)
-			{
-				show_error("Unable to determine what should be displayed. A default route has not been specified in the routing file.");
-			}
-			
-			if (strpos($this->default_controller, '/') !== FALSE)
-			{
-				$x = explode('/', $this->default_controller);
-
-				$this->set_class(end($x));
-				$this->set_method('index');
-				$this->_set_request($x);
-			}
-			else
-			{
-				$this->set_class($this->default_controller);
-				$this->set_method('index');
-				$this->_set_request(array($this->default_controller, 'index'));
-			}
-
-			// re-index the routed segments array so it starts with 1 rather than 0
-			$this->uri->_reindex_segments();
-			
-			log_message('debug', "No URI present. Default controller set.");
-			return;
+			return $this->_set_default_controller();
 		}
-		unset($this->routes['default_controller']);
-		
+
 		// Do we need to remove the URL suffix?
 		$this->uri->_remove_url_suffix();
-		
+
 		// Compile the segments into an array
 		$this->uri->_explode_segments();
-		
+
 		// Parse any custom routing that may exist
-		$this->_parse_routes();		
-		
+		$this->_parse_routes();
+
 		// Re-index the segment array so that it starts with 1 rather than 0
 		$this->uri->_reindex_segments();
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
+	/**
+	 * Set the default controller
+	 *
+	 * @access	private
+	 * @return	void
+	 */
+	function _set_default_controller()
+	{
+		if ($this->default_controller === FALSE)
+		{
+			show_error("Unable to determine what should be displayed. A default route has not been specified in the routing file.");
+		}
+		// Is the method being specified?
+		if (strpos($this->default_controller, '/') !== FALSE)
+		{
+			$x = explode('/', $this->default_controller);
+
+			$this->set_class($x[0]);
+			$this->set_method($x[1]);
+			$this->_set_request($x);
+		}
+		else
+		{
+			$this->set_class($this->default_controller);
+			$this->set_method('index');
+			$this->_set_request(array($this->default_controller, 'index'));
+		}
+
+		// re-index the routed segments array so it starts with 1 rather than 0
+		$this->uri->_reindex_segments();
+
+		log_message('debug', "No URI present. Default controller set.");
+	}
+
+	// --------------------------------------------------------------------
+
 	/**
 	 * Set the Route
 	 *
@@ -150,27 +175,18 @@ class CI_Router {
 	function _set_request($segments = array())
 	{
 		$segments = $this->_validate_request($segments);
-		
+
 		if (count($segments) == 0)
 		{
-			return;
+			return $this->_set_default_controller();
 		}
-						
+
 		$this->set_class($segments[0]);
-		
+
 		if (isset($segments[1]))
 		{
-			// A scaffolding request. No funny business with the URL
-			if ($this->routes['scaffolding_trigger'] == $segments[1] AND $segments[1] != '_ci_scaffolding')
-			{
-				$this->scaffolding_request = TRUE;
-				unset($this->routes['scaffolding_trigger']);
-			}
-			else
-			{
-				// A standard method request
-				$this->set_method($segments[1]);
-			}
+			// A standard method request
+			$this->set_method($segments[1]);
 		}
 		else
 		{
@@ -178,15 +194,15 @@ class CI_Router {
 			// index method is being used.
 			$segments[1] = 'index';
 		}
-		
+
 		// Update our "routed" segment array to contain the segments.
 		// Note: If there is no custom routing, this array will be
 		// identical to $this->uri->segments
 		$this->uri->rsegments = $segments;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Validates the supplied segments.  Attempts to determine the path to
 	 * the controller.
@@ -194,9 +210,14 @@ class CI_Router {
 	 * @access	private
 	 * @param	array
 	 * @return	array
-	 */	
+	 */
 	function _validate_request($segments)
 	{
+		if (count($segments) == 0)
+		{
+			return $segments;
+		}
+
 		// Does the requested controller exist in the root folder?
 		if (file_exists(APPPATH.'controllers/'.$segments[0].EXT))
 		{
@@ -205,11 +226,11 @@ class CI_Router {
 
 		// Is the controller in a sub-folder?
 		if (is_dir(APPPATH.'controllers/'.$segments[0]))
-		{		
+		{
 			// Set the directory and remove it from the segment array
 			$this->set_directory($segments[0]);
 			$segments = array_slice($segments, 1);
-			
+
 			if (count($segments) > 0)
 			{
 				// Does the requested controller exist in the sub-folder?
@@ -220,22 +241,47 @@ class CI_Router {
 			}
 			else
 			{
-				$this->set_class($this->default_controller);
-				$this->set_method('index');
-			
+				// Is the method being specified in the route?
+				if (strpos($this->default_controller, '/') !== FALSE)
+				{
+					$x = explode('/', $this->default_controller);
+
+					$this->set_class($x[0]);
+					$this->set_method($x[1]);
+				}
+				else
+				{
+					$this->set_class($this->default_controller);
+					$this->set_method('index');
+				}
+
 				// Does the default controller exist in the sub-folder?
 				if ( ! file_exists(APPPATH.'controllers/'.$this->fetch_directory().$this->default_controller.EXT))
 				{
 					$this->directory = '';
 					return array();
 				}
-			
+
 			}
 
 			return $segments;
 		}
 
-		// Can't find the requested controller...
+
+		// If we've gotten this far it means that the URI does not correlate to a valid
+		// controller class.  We will now see if there is an override
+		if (!empty($this->routes['404_override']))
+		{
+			$x = explode('/', $this->routes['404_override']);
+
+			$this->set_class($x[0]);
+			$this->set_method(isset($x[1]) ? $x[1] : 'index');
+
+			return $x;
+		}
+
+
+		// Nothing else to do at this point but show a 404
 		show_404($segments[0]);
 	}
 
@@ -253,41 +299,31 @@ class CI_Router {
 	 */
 	function _parse_routes()
 	{
-		// Do we even have any custom routing to deal with?
-		// There is a default scaffolding trigger, so we'll look just for 1
-		if (count($this->routes) == 1)
-		{
-			$this->_set_request($this->uri->segments);
-			return;
-		}
-
 		// Turn the segment array into a URI string
 		$uri = implode('/', $this->uri->segments);
 
 		// Is there a literal match?  If so we're done
 		if (isset($this->routes[$uri]))
 		{
-			$this->_set_request(explode('/', $this->routes[$uri]));		
-			return;
+			return $this->_set_request(explode('/', $this->routes[$uri]));
 		}
-				
+
 		// Loop through the route array looking for wild-cards
 		foreach ($this->routes as $key => $val)
-		{						
+		{
 			// Convert wild-cards to RegEx
 			$key = str_replace(':any', '.+', str_replace(':num', '[0-9]+', $key));
-			
+
 			// Does the RegEx match?
 			if (preg_match('#^'.$key.'$#', $uri))
-			{			
+			{
 				// Do we have a back-reference?
 				if (strpos($val, '$') !== FALSE AND strpos($key, '(') !== FALSE)
 				{
 					$val = preg_replace('#^'.$key.'$#', $val, $uri);
 				}
-			
-				$this->_set_request(explode('/', $val));		
-				return;
+
+				return $this->_set_request(explode('/', $val));
 			}
 		}
 
@@ -297,54 +333,54 @@ class CI_Router {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the class name
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_class($class)
 	{
 		$this->class = str_replace(array('/', '.'), '', $class);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Fetch the current class
 	 *
 	 * @access	public
 	 * @return	string
-	 */	
+	 */
 	function fetch_class()
 	{
 		return $this->class;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 *  Set the method name
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_method($method)
 	{
 		$this->method = $method;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 *  Fetch the current method
 	 *
 	 * @access	public
 	 * @return	string
-	 */	
+	 */
 	function fetch_method()
 	{
 		if ($this->method == $this->fetch_class())
@@ -356,34 +392,68 @@ class CI_Router {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 *  Set the directory name
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_directory($dir)
 	{
 		$this->directory = str_replace(array('/', '.'), '', $dir).'/';
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 *  Fetch the sub-directory (if any) that contains the requested controller class
 	 *
 	 * @access	public
 	 * @return	string
-	 */	
+	 */
 	function fetch_directory()
 	{
 		return $this->directory;
 	}
 
+	// --------------------------------------------------------------------
+
+	/**
+	 *  Set the controller overrides
+	 *
+	 * @access	public
+	 * @param	array
+	 * @return	null
+	 */
+	function _set_overrides($routing)
+	{
+		if ( ! is_array($routing))
+		{
+			return;
+		}
+
+		if (isset($routing['directory']))
+		{
+			$this->set_directory($routing['directory']);
+		}
+
+		if (isset($routing['controller']) AND $routing['controller'] != '')
+		{
+			$this->set_class($routing['controller']);
+		}
+
+		if (isset($routing['function']))
+		{
+			$routing['function'] = ($routing['function'] == '') ? 'index' : $routing['function'];
+			$this->set_method($routing['function']);
+		}
+	}
+
+
 }
 // END Router Class
 
 /* End of file Router.php */
-/* Location: ./system/libraries/Router.php */
\ No newline at end of file
+/* Location: ./system/core/Router.php */
\ No newline at end of file
diff --git a/system/libraries/URI.php b/system/core/URI.php
index 23efb38c1..999015949 100644..100755
--- a/system/libraries/URI.php
+++ b/system/core/URI.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -28,7 +28,7 @@
  */
 class CI_URI {
 
-	var	$keyval	= array();
+	var	$keyval			= array();
 	var $uri_string;
 	var $segments		= array();
 	var $rsegments		= array();
@@ -42,9 +42,9 @@ class CI_URI {
 	 *
 	 * @access	public
 	 */
-	function CI_URI()
+	function __construct()
 	{
-		$this->config =& load_class('Config');
+		$this->config =& load_class('Config', 'core');
 		log_message('debug', "URI Class Initialized");
 	}
 
@@ -61,13 +61,17 @@ class CI_URI {
 	{
 		if (strtoupper($this->config->item('uri_protocol')) == 'AUTO')
 		{
-			// If the URL has a question mark then it's simplest to just
-			// build the URI string from the zero index of the $_GET array.
-			// This avoids having to deal with $_SERVER variables, which
-			// can be unreliable in some environments
-			if (is_array($_GET) && count($_GET) == 1 && trim(key($_GET), '/') != '')
+			// Arguments exist, it must be a command line request
+			if ( ! empty($_SERVER['argv']))
 			{
-				$this->uri_string = key($_GET);
+				$this->uri_string = $this->_parse_cli_args();
+				return;
+			}
+
+			// Let's try the REQUEST_URI first, this will work in most situations
+			if ($uri = $this->_detect_uri())
+			{
+				$this->uri_string = $uri;
 				return;
 			}
 
@@ -88,12 +92,10 @@ class CI_URI {
 				return;
 			}
 
-			// No QUERY_STRING?... Maybe the ORIG_PATH_INFO variable exists?
-			$path = str_replace($_SERVER['SCRIPT_NAME'], '', (isset($_SERVER['ORIG_PATH_INFO'])) ? $_SERVER['ORIG_PATH_INFO'] : @getenv('ORIG_PATH_INFO'));
-			if (trim($path, '/') != '' && $path != "/".SELF)
+			// As a last ditch effort lets try using the $_GET array
+			if (is_array($_GET) && count($_GET) == 1 && trim(key($_GET), '/') != '')
 			{
-				// remove path and script information so we have good URI data
-				$this->uri_string = $path;
+				$this->uri_string = key($_GET);
 				return;
 			}
 
@@ -106,7 +108,12 @@ class CI_URI {
 
 			if ($uri == 'REQUEST_URI')
 			{
-				$this->uri_string = $this->_parse_request_uri();
+				$this->uri_string = $this->_detect_uri();
+				return;
+			}
+			elseif ($uri == 'CLI')
+			{
+				$this->uri_string = $this->_parse_cli_args();
 				return;
 			}
 
@@ -123,54 +130,70 @@ class CI_URI {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Parse the REQUEST_URI
+	 * Detects the URI
 	 *
-	 * Due to the way REQUEST_URI works it usually contains path info
-	 * that makes it unusable as URI data.  We'll trim off the unnecessary
-	 * data, hopefully arriving at a valid URI that we can use.
+	 * This function will detect the URI automatically and fix the query string
+	 * if necessary.
 	 *
 	 * @access	private
 	 * @return	string
 	 */
-	function _parse_request_uri()
+	private function _detect_uri()
 	{
-		if ( ! isset($_SERVER['REQUEST_URI']) OR $_SERVER['REQUEST_URI'] == '')
+		if ( ! isset($_SERVER['REQUEST_URI']))
 		{
 			return '';
 		}
 
-		$request_uri = preg_replace("|/(.*)|", "\\1", str_replace("\\", "/", $_SERVER['REQUEST_URI']));
-
-		if ($request_uri == '' OR $request_uri == SELF)
+		$uri = $_SERVER['REQUEST_URI'];
+		if (strpos($uri, $_SERVER['SCRIPT_NAME']) === 0)
 		{
-			return '';
+			$uri = substr($uri, strlen($_SERVER['SCRIPT_NAME']));
 		}
-
-		$fc_path = FCPATH.SELF;
-		if (strpos($request_uri, '?') !== FALSE)
+		elseif (strpos($uri, dirname($_SERVER['SCRIPT_NAME'])) === 0)
 		{
-			$fc_path .= '?';
+			$uri = substr($uri, strlen(dirname($_SERVER['SCRIPT_NAME'])));
 		}
 
-		$parsed_uri = explode("/", $request_uri);
-
-		$i = 0;
-		foreach(explode("/", $fc_path) as $segment)
+		// This section ensures that even on servers that require the URI to be in the query string (Nginx) a correct
+		// URI is found, and also fixes the QUERY_STRING server var and $_GET array.
+		if (strncmp($uri, '?/', 2) === 0)
 		{
-			if (isset($parsed_uri[$i]) && $segment == $parsed_uri[$i])
-			{
-				$i++;
-			}
+			$uri = substr($uri, 2);
 		}
-
-		$parsed_uri = implode("/", array_slice($parsed_uri, $i));
-
-		if ($parsed_uri != '')
+		$parts = preg_split('#\?#i', $uri, 2);
+		$uri = $parts[0];
+		if (isset($parts[1]))
+		{
+			$_SERVER['QUERY_STRING'] = $parts[1];
+			parse_str($_SERVER['QUERY_STRING'], $_GET);
+		}
+		else
 		{
-			$parsed_uri = '/'.$parsed_uri;
+			$_SERVER['QUERY_STRING'] = '';
+			$_GET = array();
 		}
+		$uri = parse_url($uri, PHP_URL_PATH);
 
-		return $parsed_uri;
+		// Do some final cleaning of the URI and return it
+		return str_replace(array('//', '../'), '/', trim($uri, '/'));
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Parse cli arguments
+	 *
+	 * Take each command line argument and assume it is a URI segment.
+	 *
+	 * @access	private
+	 * @return	string
+	 */
+	private function _parse_cli_args()
+	{
+		$args = array_slice($_SERVER['argv'], 1);
+
+		return $args ? '/' . implode('/', $args) : '';
 	}
 
 	// --------------------------------------------------------------------
@@ -195,7 +218,7 @@ class CI_URI {
 		}
 
 		// Convert programatic characters to entities
-		$bad	= array('$', 		'(', 		')',	 	'%28', 		'%29');
+		$bad	= array('$',		'(',		')',		'%28',		'%29');
 		$good	= array('&#36;',	'&#40;',	'&#41;',	'&#40;',	'&#41;');
 
 		return str_replace($bad, $good, $str);
@@ -228,7 +251,7 @@ class CI_URI {
 	 */
 	function _explode_segments()
 	{
-		foreach(explode("/", preg_replace("|/*(.+?)/*$|", "\\1", $this->uri_string)) as $val)
+		foreach (explode("/", preg_replace("|/*(.+?)/*$|", "\\1", $this->uri_string)) as $val)
 		{
 			// Filter segments for security
 			$val = trim($this->_filter_uri($val));
@@ -321,7 +344,7 @@ class CI_URI {
 	 */
 	function uri_to_assoc($n = 3, $default = array())
 	{
-	 	return $this->_uri_to_assoc($n, $default, 'segment');
+		return $this->_uri_to_assoc($n, $default, 'segment');
 	}
 	/**
 	 * Identical to above only it uses the re-routed segment array
@@ -329,7 +352,7 @@ class CI_URI {
 	 */
 	function ruri_to_assoc($n = 3, $default = array())
 	{
-	 	return $this->_uri_to_assoc($n, $default, 'rsegment');
+		return $this->_uri_to_assoc($n, $default, 'rsegment');
 	}
 
 	// --------------------------------------------------------------------
@@ -482,21 +505,18 @@ class CI_URI {
 	 */
 	function _slash_segment($n, $where = 'trailing', $which = 'segment')
 	{
+		$leading	= '/';
+		$trailing	= '/';
+
 		if ($where == 'trailing')
 		{
-			$trailing	= '/';
 			$leading	= '';
 		}
 		elseif ($where == 'leading')
 		{
-			$leading	= '/';
 			$trailing	= '';
 		}
-		else
-		{
-			$leading	= '/';
-			$trailing	= '/';
-		}
+
 		return $leading.$this->$which($n).$trailing;
 	}
 
@@ -576,11 +596,11 @@ class CI_URI {
 	 */
 	function ruri_string()
 	{
-		return '/'.implode('/', $this->rsegment_array()).'/';
+		return '/'.implode('/', $this->rsegment_array());
 	}
 
 }
 // END URI Class
 
 /* End of file URI.php */
-/* Location: ./system/libraries/URI.php */
\ No newline at end of file
+/* Location: ./system/core/URI.php */
\ No newline at end of file
diff --git a/system/core/Utf8.php b/system/core/Utf8.php
new file mode 100755
index 000000000..5d5a7ef72
--- /dev/null
+++ b/system/core/Utf8.php
@@ -0,0 +1,165 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 2.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Utf8 Class
+ *
+ * Provides support for UTF-8 environments
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	UTF-8
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/libraries/utf8.html
+ */
+class CI_Utf8 {
+
+	/**
+	 * Constructor
+	 *
+	 * Determines if UTF-8 support is to be enabled
+	 *
+	 */
+	function __construct()
+	{
+		log_message('debug', "Utf8 Class Initialized");
+
+		global $CFG;
+
+		if (
+			preg_match('/./u', 'é') === 1					// PCRE must support UTF-8
+			AND function_exists('iconv')					// iconv must be installed
+			AND ini_get('mbstring.func_overload') != 1		// Multibyte string function overloading cannot be enabled
+			AND $CFG->item('charset') == 'UTF-8'			// Application charset must be UTF-8
+			)
+		{
+			log_message('debug', "UTF-8 Support Enabled");
+
+			define('UTF8_ENABLED', TRUE);
+
+			// set internal encoding for multibyte string functions if necessary
+			// and set a flag so we don't have to repeatedly use extension_loaded()
+			// or function_exists()
+			if (extension_loaded('mbstring'))
+			{
+				define('MB_ENABLED', TRUE);
+				mb_internal_encoding('UTF-8');
+			}
+			else
+			{
+				define('MB_ENABLED', FALSE);
+			}
+		}
+		else
+		{
+			log_message('debug', "UTF-8 Support Disabled");
+			define('UTF8_ENABLED', FALSE);
+		}
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Clean UTF-8 strings
+	 *
+	 * Ensures strings are UTF-8
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	string
+	 */
+	function clean_string($str)
+	{
+		if ($this->_is_ascii($str) === FALSE)
+		{
+			$str = @iconv('UTF-8', 'UTF-8//IGNORE', $str);
+		}
+
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Remove ASCII control characters
+	 *
+	 * Removes all ASCII control characters except horizontal tabs,
+	 * line feeds, and carriage returns, as all others can cause
+	 * problems in XML
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	string
+	 */
+	function safe_ascii_for_xml($str)
+	{
+		return preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]+/S', '', $str);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Convert to UTF-8
+	 *
+	 * Attempts to convert a string to UTF-8
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	string	- input encoding
+	 * @return	string
+	 */
+	function convert_to_utf8($str, $encoding)
+	{
+		if (function_exists('iconv'))
+		{
+			$str = @iconv($encoding, 'UTF-8', $str);
+		}
+		elseif (function_exists('mb_convert_encoding'))
+		{
+			$str = @mb_convert_encoding($str, 'UTF-8', $encoding);
+		}
+		else
+		{
+			return FALSE;
+		}
+
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Is ASCII?
+	 *
+	 * Tests if a string is standard 7-bit ASCII or not
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	bool
+	 */
+	function _is_ascii($str)
+	{
+		return (preg_match('/[^\x00-\x7F]/S', $str) == 0);
+	}
+
+	// --------------------------------------------------------------------
+
+}
+// End Utf8 Class
+
+/* End of file Utf8.php */
+/* Location: ./system/core/Utf8.php */
\ No newline at end of file
diff --git a/system/scaffolding/index.html b/system/core/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/scaffolding/index.html
+++ b/system/core/index.html
diff --git a/system/database/DB.php b/system/database/DB.php
index f174687ca..fb0516ba4 100644..100755
--- a/system/database/DB.php
+++ b/system/database/DB.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -22,45 +22,45 @@
  * @author		ExpressionEngine Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
-function &DB($params = '', $active_record_override = FALSE)
+function &DB($params = '', $active_record_override = NULL)
 {
 	// Load the DB config file if a DSN string wasn't passed
 	if (is_string($params) AND strpos($params, '://') === FALSE)
 	{
 		include(APPPATH.'config/database'.EXT);
-		
+
 		if ( ! isset($db) OR count($db) == 0)
 		{
 			show_error('No database connection settings were found in the database config file.');
 		}
-		
+
 		if ($params != '')
 		{
 			$active_group = $params;
 		}
-		
+
 		if ( ! isset($active_group) OR ! isset($db[$active_group]))
 		{
 			show_error('You have specified an invalid database connection group.');
 		}
-		
+
 		$params = $db[$active_group];
 	}
 	elseif (is_string($params))
 	{
-		
+
 		/* parse the URL from the DSN string
-		*  Database settings can be passed as discreet
-	 	*  parameters or as a data source name in the first
-	 	*  parameter. DSNs must have this prototype:
-	 	*  $dsn = 'driver://username:password@hostname/database';
-		*/
-	
+		 *  Database settings can be passed as discreet
+		 *  parameters or as a data source name in the first
+		 *  parameter. DSNs must have this prototype:
+		 *  $dsn = 'driver://username:password@hostname/database';
+		 */
+
 		if (($dns = @parse_url($params)) === FALSE)
 		{
 			show_error('Invalid DB Connection String');
 		}
-		
+
 		$params = array(
 							'dbdriver'	=> $dns['scheme'],
 							'hostname'	=> (isset($dns['host'])) ? rawurldecode($dns['host']) : '',
@@ -68,7 +68,7 @@ function &DB($params = '', $active_record_override = FALSE)
 							'password'	=> (isset($dns['pass'])) ? rawurldecode($dns['pass']) : '',
 							'database'	=> (isset($dns['path'])) ? rawurldecode(substr($dns['path'], 1)) : ''
 						);
-		
+
 		// were additional config items set?
 		if (isset($dns['query']))
 		{
@@ -90,7 +90,7 @@ function &DB($params = '', $active_record_override = FALSE)
 			}
 		}
 	}
-	
+
 	// No DB specified yet?  Beat them senseless...
 	if ( ! isset($params['dbdriver']) OR $params['dbdriver'] == '')
 	{
@@ -101,18 +101,18 @@ function &DB($params = '', $active_record_override = FALSE)
 	// we need to dynamically create a class that extends proper parent class
 	// based on whether we're using the active record class or not.
 	// Kudos to Paul for discovering this clever use of eval()
-	
-	if ($active_record_override == TRUE)
+
+	if ($active_record_override !== NULL)
 	{
-		$active_record = TRUE;
+		$active_record = $active_record_override;
 	}
-	
+
 	require_once(BASEPATH.'database/DB_driver'.EXT);
 
 	if ( ! isset($active_record) OR $active_record == TRUE)
 	{
 		require_once(BASEPATH.'database/DB_active_rec'.EXT);
-		
+
 		if ( ! class_exists('CI_DB'))
 		{
 			eval('class CI_DB extends CI_DB_active_record { }');
@@ -125,20 +125,25 @@ function &DB($params = '', $active_record_override = FALSE)
 			eval('class CI_DB extends CI_DB_driver { }');
 		}
 	}
-			
+
 	require_once(BASEPATH.'database/drivers/'.$params['dbdriver'].'/'.$params['dbdriver'].'_driver'.EXT);
 
 	// Instantiate the DB adapter
 	$driver = 'CI_DB_'.$params['dbdriver'].'_driver';
-	$DB =& instantiate_class(new $driver($params));
-	
+	$DB = new $driver($params);
+
 	if ($DB->autoinit == TRUE)
 	{
 		$DB->initialize();
 	}
-	
+
+	if (isset($params['stricton']) && $params['stricton'] == TRUE)
+	{
+		$DB->query('SET SESSION sql_mode="STRICT_ALL_TABLES"');
+	}
+
 	return $DB;
-}	
+}
 
 
 
diff --git a/system/database/DB_active_rec.php b/system/database/DB_active_rec.php
index bf4d5117e..ce9d1c1af 100644..100755
--- a/system/database/DB_active_rec.php
+++ b/system/database/DB_active_rec.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -36,17 +36,18 @@ class CI_DB_active_record extends CI_DB_driver {
 	var $ar_like				= array();
 	var $ar_groupby				= array();
 	var $ar_having				= array();
+	var $ar_keys				= array();
 	var $ar_limit				= FALSE;
 	var $ar_offset				= FALSE;
 	var $ar_order				= FALSE;
 	var $ar_orderby				= array();
-	var $ar_set					= array();	
+	var $ar_set					= array();
 	var $ar_wherein				= array();
 	var $ar_aliased_tables		= array();
 	var $ar_store_array			= array();
-	
+
 	// Active Record Caching variables
-	var $ar_caching 			= FALSE;
+	var $ar_caching				= FALSE;
 	var $ar_cache_exists		= array();
 	var $ar_cache_select		= array();
 	var $ar_cache_from			= array();
@@ -56,7 +57,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	var $ar_cache_groupby		= array();
 	var $ar_cache_having		= array();
 	var $ar_cache_orderby		= array();
-	var $ar_cache_set			= array();	
+	var $ar_cache_set			= array();
 
 
 	// --------------------------------------------------------------------
@@ -72,12 +73,12 @@ class CI_DB_active_record extends CI_DB_driver {
 	 */
 	function select($select = '*', $escape = NULL)
 	{
-		// Set the global value if this was sepecified	
+		// Set the global value if this was sepecified
 		if (is_bool($escape))
 		{
 			$this->_protect_identifiers = $escape;
 		}
-		
+
 		if (is_string($select))
 		{
 			$select = explode(',', $select);
@@ -117,7 +118,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	{
 		return $this->_max_min_avg_sum($select, $alias, 'MAX');
 	}
-		
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -178,7 +179,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	 *	select_min()
 	 *	select_avg()
 	 *  select_sum()
-	 *	
+	 *
 	 * @access	public
 	 * @param	string	the field
 	 * @param	string	an alias
@@ -190,29 +191,29 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$this->display_error('db_invalid_query');
 		}
-	
+
 		$type = strtoupper($type);
-	
+
 		if ( ! in_array($type, array('MAX', 'MIN', 'AVG', 'SUM')))
 		{
 			show_error('Invalid function type: '.$type);
 		}
-	
+
 		if ($alias == '')
 		{
 			$alias = $this->_create_alias_from_table(trim($select));
 		}
-	
+
 		$sql = $type.'('.$this->_protect_identifiers(trim($select)).') AS '.$alias;
 
 		$this->ar_select[] = $sql;
-		
+
 		if ($this->ar_caching === TRUE)
 		{
 			$this->ar_cache_select[] = $sql;
 			$this->ar_cache_exists[] = 'select';
 		}
-		
+
 		return $this;
 	}
 
@@ -231,7 +232,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			return end(explode('.', $item));
 		}
-		
+
 		return $item;
 	}
 
@@ -251,7 +252,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		$this->ar_distinct = (is_bool($val)) ? $val : TRUE;
 		return $this;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -275,12 +276,12 @@ class CI_DB_active_record extends CI_DB_driver {
 					$this->_track_aliases($v);
 
 					$this->ar_from[] = $this->_protect_identifiers($v, TRUE, NULL, FALSE);
-					
+
 					if ($this->ar_caching === TRUE)
 					{
 						$this->ar_cache_from[] = $this->_protect_identifiers($v, TRUE, NULL, FALSE);
 						$this->ar_cache_exists[] = 'from';
-					}				
+					}
 				}
 
 			}
@@ -289,11 +290,11 @@ class CI_DB_active_record extends CI_DB_driver {
 				$val = trim($val);
 
 				// Extract any aliases that might exist.  We use this information
-				// in the _protect_identifiers to know whether to add a table prefix 
+				// in the _protect_identifiers to know whether to add a table prefix
 				$this->_track_aliases($val);
-	
+
 				$this->ar_from[] = $this->_protect_identifiers($val, TRUE, NULL, FALSE);
-				
+
 				if ($this->ar_caching === TRUE)
 				{
 					$this->ar_cache_from[] = $this->_protect_identifiers($val, TRUE, NULL, FALSE);
@@ -319,7 +320,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	 * @return	object
 	 */
 	function join($table, $cond, $type = '')
-	{		
+	{
 		if ($type != '')
 		{
 			$type = strtoupper(trim($type));
@@ -335,7 +336,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		}
 
 		// Extract any aliases that might exist.  We use this information
-		// in the _protect_identifiers to know whether to add a table prefix 
+		// in the _protect_identifiers to know whether to add a table prefix
 		$this->_track_aliases($table);
 
 		// Strip apart the condition and protect the identifiers
@@ -343,10 +344,10 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$match[1] = $this->_protect_identifiers($match[1]);
 			$match[3] = $this->_protect_identifiers($match[3]);
-		
-			$cond = $match[1].$match[2].$match[3];		
+
+			$cond = $match[1].$match[2].$match[3];
 		}
-		
+
 		// Assemble the JOIN statement
 		$join = $type.'JOIN '.$this->_protect_identifiers($table, TRUE, NULL, FALSE).' ON '.$cond;
 
@@ -377,7 +378,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	{
 		return $this->_where($key, $value, 'AND ', $escape);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -399,18 +400,6 @@ class CI_DB_active_record extends CI_DB_driver {
 	// --------------------------------------------------------------------
 
 	/**
-	 * orwhere() is an alias of or_where()
-	 * this function is here for backwards compatibility, as
-	 * orwhere() has been deprecated
-	 */
-	function orwhere($key, $value = NULL, $escape = TRUE)
-	{
-		return $this->or_where($key, $value, $escape);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Where
 	 *
 	 * Called by where() or orwhere()
@@ -427,7 +416,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$key = array($key => $value);
 		}
-		
+
 		// If the escape value was not set will will base it on the global setting
 		if ( ! is_bool($escape))
 		{
@@ -443,13 +432,13 @@ class CI_DB_active_record extends CI_DB_driver {
 				// value appears not to have been set, assign the test to IS NULL
 				$k .= ' IS NULL';
 			}
-			
+
 			if ( ! is_null($v))
 			{
 				if ($escape === TRUE)
 				{
 					$k = $this->_protect_identifiers($k, FALSE, $escape);
-					
+
 					$v = ' '.$this->escape($v);
 				}
 
@@ -460,19 +449,19 @@ class CI_DB_active_record extends CI_DB_driver {
 			}
 			else
 			{
-				$k = $this->_protect_identifiers($k, FALSE, $escape);			
+				$k = $this->_protect_identifiers($k, FALSE, $escape);
 			}
 
 			$this->ar_where[] = $prefix.$k.$v;
-			
+
 			if ($this->ar_caching === TRUE)
 			{
 				$this->ar_cache_where[] = $prefix.$k.$v;
 				$this->ar_cache_exists[] = 'where';
 			}
-			
+
 		}
-		
+
 		return $this;
 	}
 
@@ -493,7 +482,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	{
 		return $this->_where_in($key, $values);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -529,7 +518,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	{
 		return $this->_where_in($key, $values, TRUE);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -559,7 +548,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	 * @param	string	The field to search
 	 * @param	array	The values searched on
 	 * @param	boolean	If the statement would be IN or NOT IN
-	 * @param	string	
+	 * @param	string
 	 * @return	object
 	 */
 	function _where_in($key = NULL, $values = NULL, $not = FALSE, $type = 'AND ')
@@ -568,12 +557,12 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			return;
 		}
-		
+
 		if ( ! is_array($values))
 		{
 			$values = array($values);
 		}
-		
+
 		$not = ($not) ? ' NOT' : '';
 
 		foreach ($values as $value)
@@ -582,7 +571,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		}
 
 		$prefix = (count($this->ar_where) == 0) ? '' : $type;
- 
+
 		$where_in = $prefix . $this->_protect_identifiers($key) . $not . " IN (" . implode(", ", $this->ar_wherein) . ") ";
 
 		$this->ar_where[] = $where_in;
@@ -596,7 +585,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		$this->ar_wherein = array();
 		return $this;
 	}
-		
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -632,7 +621,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	{
 		return $this->_like($field, $match, 'AND ', $side, 'NOT');
 	}
-		
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -668,19 +657,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	{
 		return $this->_like($field, $match, 'OR ', $side, 'NOT');
 	}
-	
-	// --------------------------------------------------------------------
 
-	/**
-	 * orlike() is an alias of or_like()
-	 * this function is here for backwards compatibility, as
-	 * orlike() has been deprecated
-	 */
-	function orlike($field, $match = '', $side = 'both')
-	{
-		return $this->or_like($field, $match, $side);
-	}
-	
 	// --------------------------------------------------------------------
 
 	/**
@@ -700,7 +677,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$field = array($field => $match);
 		}
- 	
+
 		foreach ($field as $k => $v)
 		{
 			$k = $this->_protect_identifiers($k);
@@ -721,24 +698,24 @@ class CI_DB_active_record extends CI_DB_driver {
 			{
 				$like_statement = $prefix." $k $not LIKE '%{$v}%'";
 			}
-			
+
 			// some platforms require an escape sequence definition for LIKE wildcards
 			if ($this->_like_escape_str != '')
 			{
-				$like_statement = $like_statement.sprintf($this->_like_escape_str, $this->_like_escape_char);
+				$like_statement = $like_statement.sprintf($this->_like_escape_str, $this->_like_escape_chr);
 			}
-			
+
 			$this->ar_like[] = $like_statement;
 			if ($this->ar_caching === TRUE)
 			{
 				$this->ar_cache_like[] = $like_statement;
 				$this->ar_cache_exists[] = 'like';
 			}
-			
+
 		}
 		return $this;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -754,15 +731,15 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$by = explode(',', $by);
 		}
-	
+
 		foreach ($by as $val)
 		{
 			$val = trim($val);
-		
+
 			if ($val != '')
 			{
 				$this->ar_groupby[] = $this->_protect_identifiers($val);
-				
+
 				if ($this->ar_caching === TRUE)
 				{
 					$this->ar_cache_groupby[] = $this->_protect_identifiers($val);
@@ -776,18 +753,6 @@ class CI_DB_active_record extends CI_DB_driver {
 	// --------------------------------------------------------------------
 
 	/**
-	 * groupby() is an alias of group_by()
-	 * this function is here for backwards compatibility, as
-	 * groupby() has been deprecated
-	 */
-	function groupby($by)
-	{
-		return $this->group_by($by);
-	}	
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Sets the HAVING value
 	 *
 	 * Separates multiple calls with AND
@@ -805,18 +770,6 @@ class CI_DB_active_record extends CI_DB_driver {
 	// --------------------------------------------------------------------
 
 	/**
-	 * orhaving() is an alias of or_having()
-	 * this function is here for backwards compatibility, as
-	 * orhaving() has been deprecated
-	 */
-
-	function orhaving($key, $value = '', $escape = TRUE)
-	{
-		return $this->or_having($key, $value, $escape);
-	}	
-	// --------------------------------------------------------------------
-
-	/**
 	 * Sets the OR HAVING value
 	 *
 	 * Separates multiple calls with OR
@@ -830,7 +783,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	{
 		return $this->_having($key, $value, 'OR ', $escape);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -849,7 +802,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$key = array($key => $value);
 		}
-	
+
 		foreach ($key as $k => $v)
 		{
 			$prefix = (count($this->ar_having) == 0) ? '' : $type;
@@ -868,7 +821,7 @@ class CI_DB_active_record extends CI_DB_driver {
 			{
 				$v = ' '.$this->escape_str($v);
 			}
-			
+
 			$this->ar_having[] = $prefix.$k.$v;
 			if ($this->ar_caching === TRUE)
 			{
@@ -876,10 +829,10 @@ class CI_DB_active_record extends CI_DB_driver {
 				$this->ar_cache_exists[] = 'having';
 			}
 		}
-		
+
 		return $this;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -901,8 +854,8 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$direction = (in_array(strtoupper(trim($direction)), array('ASC', 'DESC'), TRUE)) ? ' '.$direction : ' ASC';
 		}
-	
-	
+
+
 		if (strpos($orderby, ',') !== FALSE)
 		{
 			$temp = array();
@@ -913,19 +866,19 @@ class CI_DB_active_record extends CI_DB_driver {
 				{
 					$part = $this->_protect_identifiers(trim($part));
 				}
-				
+
 				$temp[] = $part;
 			}
-			
-			$orderby = implode(', ', $temp);			
+
+			$orderby = implode(', ', $temp);
 		}
 		else if ($direction != $this->_random_keyword)
 		{
 			$orderby = $this->_protect_identifiers($orderby);
 		}
-	
+
 		$orderby_statement = $orderby.$direction;
-		
+
 		$this->ar_orderby[] = $orderby_statement;
 		if ($this->ar_caching === TRUE)
 		{
@@ -935,19 +888,7 @@ class CI_DB_active_record extends CI_DB_driver {
 
 		return $this;
 	}
-	
-	// --------------------------------------------------------------------
 
-	/**
-	 * orderby() is an alias of order_by()
-	 * this function is here for backwards compatibility, as
-	 * orderby() has been deprecated
-	 */
-	function orderby($orderby, $direction = '')
-	{
-		return $this->order_by($orderby, $direction);
-	}
-	
 	// --------------------------------------------------------------------
 
 	/**
@@ -966,10 +907,10 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$this->ar_offset = $offset;
 		}
-		
+
 		return $this;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -984,7 +925,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		$this->ar_offset = $offset;
 		return $this;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -999,11 +940,11 @@ class CI_DB_active_record extends CI_DB_driver {
 	function set($key, $value = '', $escape = TRUE)
 	{
 		$key = $this->_object_to_array($key);
-	
+
 		if ( ! is_array($key))
 		{
 			$key = array($key => $value);
-		}	
+		}
 
 		foreach ($key as $k => $v)
 		{
@@ -1016,10 +957,10 @@ class CI_DB_active_record extends CI_DB_driver {
 				$this->ar_set[$this->_protect_identifiers($k)] = $this->escape($v);
 			}
 		}
-		
+
 		return $this;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1041,12 +982,12 @@ class CI_DB_active_record extends CI_DB_driver {
 			$this->_track_aliases($table);
 			$this->from($table);
 		}
-		
+
 		if ( ! is_null($limit))
 		{
 			$this->limit($limit, $offset);
 		}
-			
+
 		$sql = $this->_compile_select();
 
 		$result = $this->query($sql);
@@ -1057,7 +998,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	/**
 	 * "Count All Results" query
 	 *
-	 * Generates a platform-specific query string that counts all records 
+	 * Generates a platform-specific query string that counts all records
 	 * returned by an Active Record query.
 	 *
 	 * @access	public
@@ -1071,12 +1012,12 @@ class CI_DB_active_record extends CI_DB_driver {
 			$this->_track_aliases($table);
 			$this->from($table);
 		}
-		
+
 		$sql = $this->_compile_select($this->_count_string . $this->_protect_identifiers('numrows'));
 
 		$query = $this->query($sql);
 		$this->_reset_select();
-	
+
 		if ($query->num_rows() == 0)
 		{
 			return '0';
@@ -1110,12 +1051,12 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$this->where($where);
 		}
-		
+
 		if ( ! is_null($limit))
 		{
 			$this->limit($limit, $offset);
 		}
-			
+
 		$sql = $this->_compile_select();
 
 		$result = $this->query($sql);
@@ -1126,15 +1067,123 @@ class CI_DB_active_record extends CI_DB_driver {
 	// --------------------------------------------------------------------
 
 	/**
-	 * getwhere() is an alias of get_where()
-	 * this function is here for backwards compatibility, as
-	 * getwhere() has been deprecated
+	 * Insert_Batch
+	 *
+	 * Compiles batch insert strings and runs the queries
+	 *
+	 * @access	public
+	 * @param	string	the table to retrieve the results from
+	 * @param	array	an associative array of insert values
+	 * @return	object
 	 */
-	function getwhere($table = '', $where = null, $limit = null, $offset = null)
+	function insert_batch($table = '', $set = NULL)
 	{
-		return $this->get_where($table, $where, $limit, $offset);
+		if ( ! is_null($set))
+		{
+			$this->set_insert_batch($set);
+		}
+
+		if (count($this->ar_set) == 0)
+		{
+			if ($this->db_debug)
+			{
+				//No valid data array.  Folds in cases where keys and values did not match up
+				return $this->display_error('db_must_use_set');
+			}
+			return FALSE;
+		}
+
+		if ($table == '')
+		{
+			if ( ! isset($this->ar_from[0]))
+			{
+				if ($this->db_debug)
+				{
+					return $this->display_error('db_must_set_table');
+				}
+				return FALSE;
+			}
+
+			$table = $this->ar_from[0];
+		}
+
+		// Batch this baby
+		for ($i = 0, $total = count($this->ar_set); $i < $total; $i = $i + 100)
+		{
+
+			$sql = $this->_insert_batch($this->_protect_identifiers($table, TRUE, NULL, FALSE), $this->ar_keys, array_slice($this->ar_set, $i, 100));
+
+			//echo $sql;
+
+			$this->query($sql);
+		}
+
+		$this->_reset_write();
+
+
+		return TRUE;
 	}
-	
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * The "set_insert_batch" function.  Allows key/value pairs to be set for batch inserts
+	 *
+	 * @access	public
+	 * @param	mixed
+	 * @param	string
+	 * @param	boolean
+	 * @return	object
+	 */
+
+	function set_insert_batch($key, $value = '', $escape = TRUE)
+	{
+		$key = $this->_object_to_array_batch($key);
+
+		if ( ! is_array($key))
+		{
+			$key = array($key => $value);
+		}
+
+		$keys = array_keys(current($key));
+		sort($keys);
+
+		foreach ($key as $row)
+		{
+			if (count(array_diff($keys, array_keys($row))) > 0 OR count(array_diff(array_keys($row), $keys)) > 0)
+			{
+				// batch function above returns an error on an empty array
+				$this->ar_set[] = array();
+				return;
+			}
+		
+			ksort($row); // puts $row in the same order as our keys
+
+			if ($escape === FALSE)
+			{
+				$this->ar_set[] =  '('.implode(',', $row).')';
+			}
+			else
+			{
+				$clean = array();
+
+				foreach($row as $value)
+				{
+					$clean[] = $this->escape($value);
+				}
+
+				$this->ar_set[] =  '('.implode(',', $clean).')';
+			}
+		}
+
+		foreach ($keys as $k)
+		{
+			$this->ar_keys[] = $this->_protect_identifiers($k);
+		}
+
+		return $this;
+	}
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1148,12 +1197,12 @@ class CI_DB_active_record extends CI_DB_driver {
 	 * @return	object
 	 */
 	function insert($table = '', $set = NULL)
-	{	
+	{
 		if ( ! is_null($set))
 		{
 			$this->set($set);
 		}
-	
+
 		if (count($this->ar_set) == 0)
 		{
 			if ($this->db_debug)
@@ -1173,16 +1222,52 @@ class CI_DB_active_record extends CI_DB_driver {
 				}
 				return FALSE;
 			}
-			
+
 			$table = $this->ar_from[0];
 		}
 
 		$sql = $this->_insert($this->_protect_identifiers($table, TRUE, NULL, FALSE), array_keys($this->ar_set), array_values($this->ar_set));
-		
+
 		$this->_reset_write();
-		return $this->query($sql);		
+		return $this->query($sql);
 	}
-	
+
+	function replace($table = '', $set = NULL)
+	{
+		if ( ! is_null($set))
+		{
+			$this->set($set);
+		}
+
+		if (count($this->ar_set) == 0)
+		{
+			if ($this->db_debug)
+			{
+				return $this->display_error('db_must_use_set');
+			}
+			return FALSE;
+		}
+
+		if ($table == '')
+		{
+			if ( ! isset($this->ar_from[0]))
+			{
+				if ($this->db_debug)
+				{
+					return $this->display_error('db_must_set_table');
+				}
+				return FALSE;
+			}
+
+			$table = $this->ar_from[0];
+		}
+
+		$sql = $this->_replace($this->_protect_identifiers($table, TRUE, NULL, FALSE), array_keys($this->ar_set), array_values($this->ar_set));
+
+		$this->_reset_write();
+		return $this->query($sql);
+	}
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1205,7 +1290,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$this->set($set);
 		}
-	
+
 		if (count($this->ar_set) == 0)
 		{
 			if ($this->db_debug)
@@ -1225,10 +1310,10 @@ class CI_DB_active_record extends CI_DB_driver {
 				}
 				return FALSE;
 			}
-			
+
 			$table = $this->ar_from[0];
 		}
-		
+
 		if ($where != NULL)
 		{
 			$this->where($where);
@@ -1238,13 +1323,140 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$this->limit($limit);
 		}
-		
+
 		$sql = $this->_update($this->_protect_identifiers($table, TRUE, NULL, FALSE), $this->ar_set, $this->ar_where, $this->ar_orderby, $this->ar_limit);
-		
+
 		$this->_reset_write();
 		return $this->query($sql);
 	}
 
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Update_Batch
+	 *
+	 * Compiles an update string and runs the query
+	 *
+	 * @access	public
+	 * @param	string	the table to retrieve the results from
+	 * @param	array	an associative array of update values
+	 * @param	string	the where key
+	 * @return	object
+	 */
+	function update_batch($table = '', $set = NULL, $index = NULL)
+	{
+		// Combine any cached components with the current statements
+		$this->_merge_cache();
+
+		if (is_null($index))
+		{
+			if ($this->db_debug)
+			{
+				return $this->display_error('db_myst_use_index');
+			}
+
+			return FALSE;
+		}
+
+		if ( ! is_null($set))
+		{
+			$this->set_update_batch($set, $index);
+		}
+
+		if (count($this->ar_set) == 0)
+		{
+			if ($this->db_debug)
+			{
+				return $this->display_error('db_must_use_set');
+			}
+
+			return FALSE;
+		}
+
+		if ($table == '')
+		{
+			if ( ! isset($this->ar_from[0]))
+			{
+				if ($this->db_debug)
+				{
+					return $this->display_error('db_must_set_table');
+				}
+				return FALSE;
+			}
+
+			$table = $this->ar_from[0];
+		}
+
+		// Batch this baby
+		for ($i = 0, $total = count($this->ar_set); $i < $total; $i = $i + 100)
+		{
+			$sql = $this->_update_batch($this->_protect_identifiers($table, TRUE, NULL, FALSE), array_slice($this->ar_set, $i, 100), $this->_protect_identifiers($index), $this->ar_where);
+
+			$this->query($sql);
+		}
+
+		$this->_reset_write();
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * The "set_update_batch" function.  Allows key/value pairs to be set for batch updating
+	 *
+	 * @access	public
+	 * @param	array
+	 * @param	string
+	 * @param	boolean
+	 * @return	object
+	 */
+
+	function set_update_batch($key, $index = '', $escape = TRUE)
+	{
+		$key = $this->_object_to_array_batch($key);
+
+		if ( ! is_array($key))
+		{
+			// @todo error
+		}
+
+		foreach ($key as $k => $v)
+		{
+			$index_set = FALSE;
+			$clean = array();
+
+			foreach($v as $k2 => $v2)
+			{
+				if ($k2 == $index)
+				{
+					$index_set = TRUE;
+				}
+				else
+				{
+					$not[] = $k.'-'.$v;
+				}
+
+				if ($escape === FALSE)
+				{
+					$clean[$this->_protect_identifiers($k2)] = $v2;
+				}
+				else
+				{
+					$clean[$this->_protect_identifiers($k2)] = $this->escape($v2);
+				}
+			}
+
+			if ($index_set == FALSE)
+			{
+				return $this->display_error('db_batch_missing_index');
+			}
+
+			$this->ar_set[] = $clean;
+		}
+
+		return $this;
+	}
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1279,7 +1491,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		$sql = $this->_delete($table);
 
 		$this->_reset_write();
-		
+
 		return $this->query($sql);
 	}
 
@@ -1319,10 +1531,10 @@ class CI_DB_active_record extends CI_DB_driver {
 		$sql = $this->_truncate($table);
 
 		$this->_reset_write();
-		
+
 		return $this->query($sql);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1388,7 +1600,7 @@ class CI_DB_active_record extends CI_DB_driver {
 			}
 
 			return FALSE;
-		}		
+		}
 
 		$sql = $this->_delete($table, $this->ar_where, $this->ar_like, $this->ar_limit);
 
@@ -1396,7 +1608,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$this->_reset_write();
 		}
-		
+
 		return $this->query($sql);
 	}
 
@@ -1431,7 +1643,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	 * @access	private
 	 * @param	string	The table to inspect
 	 * @return	string
-	 */	
+	 */
 	function _track_aliases($table)
 	{
 		if (is_array($table))
@@ -1442,23 +1654,23 @@ class CI_DB_active_record extends CI_DB_driver {
 			}
 			return;
 		}
-		
+
 		// Does the string contain a comma?  If so, we need to separate
 		// the string into discreet statements
 		if (strpos($table, ',') !== FALSE)
 		{
 			return $this->_track_aliases(explode(',', $table));
 		}
-	
+
 		// if a table alias is used we can recognize it by a space
 		if (strpos($table, " ") !== FALSE)
 		{
 			// if the alias is written with the AS keyword, remove it
 			$table = preg_replace('/ AS /i', ' ', $table);
-			
+
 			// Grab the alias
 			$table = trim(strrchr($table, " "));
-			
+
 			// Store the alias, if it doesn't already exist
 			if ( ! in_array($table, $this->ar_aliased_tables))
 			{
@@ -1484,7 +1696,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		$this->_merge_cache();
 
 		// ----------------------------------------------------------------
-		
+
 		// Write the "select" portion of the query
 
 		if ($select_override !== FALSE)
@@ -1494,13 +1706,13 @@ class CI_DB_active_record extends CI_DB_driver {
 		else
 		{
 			$sql = ( ! $this->ar_distinct) ? 'SELECT ' : 'SELECT DISTINCT ';
-		
+
 			if (count($this->ar_select) == 0)
 			{
-				$sql .= '*';		
+				$sql .= '*';
 			}
 			else
-			{				
+			{
 				// Cycle through the "select" portion of the query and prep each column name.
 				// The reason we protect identifiers here rather then in the select() function
 				// is because until the user calls the from() function we don't know if there are aliases
@@ -1508,13 +1720,13 @@ class CI_DB_active_record extends CI_DB_driver {
 				{
 					$this->ar_select[$key] = $this->_protect_identifiers($val);
 				}
-				
+
 				$sql .= implode(', ', $this->ar_select);
 			}
 		}
 
 		// ----------------------------------------------------------------
-		
+
 		// Write the "FROM" portion of the query
 
 		if (count($this->ar_from) > 0)
@@ -1525,7 +1737,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		}
 
 		// ----------------------------------------------------------------
-		
+
 		// Write the "JOIN" portion of the query
 
 		if (count($this->ar_join) > 0)
@@ -1536,7 +1748,7 @@ class CI_DB_active_record extends CI_DB_driver {
 		}
 
 		// ----------------------------------------------------------------
-		
+
 		// Write the "WHERE" portion of the query
 
 		if (count($this->ar_where) > 0 OR count($this->ar_like) > 0)
@@ -1549,9 +1761,9 @@ class CI_DB_active_record extends CI_DB_driver {
 		$sql .= implode("\n", $this->ar_where);
 
 		// ----------------------------------------------------------------
-		
+
 		// Write the "LIKE" portion of the query
-	
+
 		if (count($this->ar_like) > 0)
 		{
 			if (count($this->ar_where) > 0)
@@ -1563,20 +1775,20 @@ class CI_DB_active_record extends CI_DB_driver {
 		}
 
 		// ----------------------------------------------------------------
-		
+
 		// Write the "GROUP BY" portion of the query
-	
+
 		if (count($this->ar_groupby) > 0)
 		{
 			$sql .= "\nGROUP BY ";
-			
+
 			$sql .= implode(', ', $this->ar_groupby);
 		}
 
 		// ----------------------------------------------------------------
-		
+
 		// Write the "HAVING" portion of the query
-		
+
 		if (count($this->ar_having) > 0)
 		{
 			$sql .= "\nHAVING ";
@@ -1584,24 +1796,24 @@ class CI_DB_active_record extends CI_DB_driver {
 		}
 
 		// ----------------------------------------------------------------
-		
+
 		// Write the "ORDER BY" portion of the query
 
 		if (count($this->ar_orderby) > 0)
 		{
 			$sql .= "\nORDER BY ";
 			$sql .= implode(', ', $this->ar_orderby);
-			
+
 			if ($this->ar_order !== FALSE)
 			{
 				$sql .= ($this->ar_order == 'desc') ? ' DESC' : ' ASC';
-			}		
+			}
 		}
 
 		// ----------------------------------------------------------------
-		
+
 		// Write the "LIMIT" portion of the query
-		
+
 		if (is_numeric($this->ar_limit))
 		{
 			$sql .= "\n";
@@ -1628,20 +1840,60 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			return $object;
 		}
-		
+
 		$array = array();
 		foreach (get_object_vars($object) as $key => $val)
 		{
 			// There are some built in keys we need to ignore for this conversion
-			if ( ! is_object($val) && ! is_array($val) && $key != '_parent_name' && $key != '_ci_scaffolding' && $key != '_ci_scaff_table')
+			if ( ! is_object($val) && ! is_array($val) && $key != '_parent_name')
 			{
 				$array[$key] = $val;
 			}
 		}
-	
+
+		return $array;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Object to Array
+	 *
+	 * Takes an object as input and converts the class variables to array key/vals
+	 *
+	 * @access	public
+	 * @param	object
+	 * @return	array
+	 */
+	function _object_to_array_batch($object)
+	{
+		if ( ! is_object($object))
+		{
+			return $object;
+		}
+
+		$array = array();
+		$out = get_object_vars($object);
+		$fields = array_keys($out);
+
+		foreach ($fields as $val)
+		{
+			// There are some built in keys we need to ignore for this conversion
+			if ($val != '_parent_name')
+			{
+
+				$i = 0;
+				foreach ($out[$val] as $data)
+				{
+					$array[$i][$val] = $data;
+					$i++;
+				}
+			}
+		}
+
 		return $array;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1651,7 +1903,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	 *
 	 * @access	public
 	 * @return	void
-	 */		
+	 */
 	function start_cache()
 	{
 		$this->ar_caching = TRUE;
@@ -1666,7 +1918,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	 *
 	 * @access	public
 	 * @return	void
-	 */		
+	 */
 	function stop_cache()
 	{
 		$this->ar_caching = FALSE;
@@ -1681,23 +1933,23 @@ class CI_DB_active_record extends CI_DB_driver {
 	 *
 	 * @access	public
 	 * @return	void
-	 */	
+	 */
 	function flush_cache()
-	{	
+	{
 		$this->_reset_run(
 							array(
-									'ar_cache_select'	=> array(), 
-									'ar_cache_from'		=> array(), 
+									'ar_cache_select'	=> array(),
+									'ar_cache_from'		=> array(),
 									'ar_cache_join'		=> array(),
-									'ar_cache_where'	=> array(), 
-									'ar_cache_like'		=> array(), 
-									'ar_cache_groupby'	=> array(), 
-									'ar_cache_having'	=> array(), 
-									'ar_cache_orderby'	=> array(), 
+									'ar_cache_where'	=> array(),
+									'ar_cache_like'		=> array(),
+									'ar_cache_groupby'	=> array(),
+									'ar_cache_having'	=> array(),
+									'ar_cache_orderby'	=> array(),
 									'ar_cache_set'		=> array(),
 									'ar_cache_exists'	=> array()
 								)
-							);	
+							);
 	}
 
 	// --------------------------------------------------------------------
@@ -1705,7 +1957,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	/**
 	 * Merge Cache
 	 *
-	 * When called, this function merges any cached AR arrays with 
+	 * When called, this function merges any cached AR arrays with
 	 * locally called ones.
 	 *
 	 * @access	private
@@ -1770,50 +2022,51 @@ class CI_DB_active_record extends CI_DB_driver {
 	function _reset_select()
 	{
 		$ar_reset_items = array(
-								'ar_select'			=> array(), 
-								'ar_from'			=> array(), 
-								'ar_join'			=> array(), 
-								'ar_where'			=> array(), 
-								'ar_like'			=> array(), 
-								'ar_groupby'		=> array(), 
-								'ar_having'			=> array(), 
-								'ar_orderby'		=> array(), 
-								'ar_wherein'		=> array(), 
+								'ar_select'			=> array(),
+								'ar_from'			=> array(),
+								'ar_join'			=> array(),
+								'ar_where'			=> array(),
+								'ar_like'			=> array(),
+								'ar_groupby'		=> array(),
+								'ar_having'			=> array(),
+								'ar_orderby'		=> array(),
+								'ar_wherein'		=> array(),
 								'ar_aliased_tables'	=> array(),
-								'ar_distinct'		=> FALSE, 
-								'ar_limit'			=> FALSE, 
-								'ar_offset'			=> FALSE, 
+								'ar_distinct'		=> FALSE,
+								'ar_limit'			=> FALSE,
+								'ar_offset'			=> FALSE,
 								'ar_order'			=> FALSE,
 							);
-		
+
 		$this->_reset_run($ar_reset_items);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
 	 * Resets the active record "write" values.
 	 *
-	 * Called by the insert() update() and delete() functions
+	 * Called by the insert() update() insert_batch() update_batch() and delete() functions
 	 *
 	 * @access	private
 	 * @return	void
 	 */
 	function _reset_write()
-	{	
+	{
 		$ar_reset_items = array(
-								'ar_set'		=> array(), 
-								'ar_from'		=> array(), 
-								'ar_where'		=> array(), 
+								'ar_set'		=> array(),
+								'ar_from'		=> array(),
+								'ar_where'		=> array(),
 								'ar_like'		=> array(),
-								'ar_orderby'	=> array(), 
-								'ar_limit'		=> FALSE, 
+								'ar_orderby'	=> array(),
+								'ar_keys'		=> array(),
+								'ar_limit'		=> FALSE,
 								'ar_order'		=> FALSE
 								);
 
 		$this->_reset_run($ar_reset_items);
 	}
-	
+
 }
 
 /* End of file DB_active_rec.php */
diff --git a/system/database/DB_cache.php b/system/database/DB_cache.php
index d3968b315..3bf065ca5 100644..100755
--- a/system/database/DB_cache.php
+++ b/system/database/DB_cache.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -32,14 +32,14 @@ class CI_DB_Cache {
 	 *
 	 * Grabs the CI super object instance so we can access it.
 	 *
-	 */	
+	 */
 	function CI_DB_Cache(&$db)
 	{
 		// Assign the main CI object to $this->CI
 		// and load the file helper since we use it a lot
 		$this->CI =& get_instance();
 		$this->db =& $db;
-		$this->CI->load->helper('file');	
+		$this->CI->load->helper('file');
 	}
 
 	// --------------------------------------------------------------------
@@ -50,7 +50,7 @@ class CI_DB_Cache {
 	 * @access	public
 	 * @param	string	the path to the cache directory
 	 * @return	bool
-	 */		
+	 */
 	function check_path($path = '')
 	{
 		if ($path == '')
@@ -59,10 +59,10 @@ class CI_DB_Cache {
 			{
 				return $this->db->cache_off();
 			}
-		
+
 			$path = $this->db->cachedir;
 		}
-	
+
 		// Add a trailing slash to the path if needed
 		$path = preg_replace("/(.+?)\/*$/", "\\1/",  $path);
 
@@ -71,11 +71,11 @@ class CI_DB_Cache {
 			// If the path is wrong we'll turn off caching
 			return $this->db->cache_off();
 		}
-		
+
 		$this->db->cachedir = $path;
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -95,18 +95,18 @@ class CI_DB_Cache {
 		}
 
 		$segment_one = ($this->CI->uri->segment(1) == FALSE) ? 'default' : $this->CI->uri->segment(1);
-		
+
 		$segment_two = ($this->CI->uri->segment(2) == FALSE) ? 'index' : $this->CI->uri->segment(2);
-	
-		$filepath = $this->db->cachedir.$segment_one.'+'.$segment_two.'/'.md5($sql);		
-		
+
+		$filepath = $this->db->cachedir.$segment_one.'+'.$segment_two.'/'.md5($sql);
+
 		if (FALSE === ($cachedata = read_file($filepath)))
-		{	
+		{
 			return FALSE;
 		}
-		
-		return unserialize($cachedata);			
-	}	
+
+		return unserialize($cachedata);
+	}
 
 	// --------------------------------------------------------------------
 
@@ -124,29 +124,29 @@ class CI_DB_Cache {
 		}
 
 		$segment_one = ($this->CI->uri->segment(1) == FALSE) ? 'default' : $this->CI->uri->segment(1);
-		
+
 		$segment_two = ($this->CI->uri->segment(2) == FALSE) ? 'index' : $this->CI->uri->segment(2);
-	
+
 		$dir_path = $this->db->cachedir.$segment_one.'+'.$segment_two.'/';
-		
+
 		$filename = md5($sql);
-	
+
 		if ( ! @is_dir($dir_path))
 		{
 			if ( ! @mkdir($dir_path, DIR_WRITE_MODE))
 			{
 				return FALSE;
 			}
-			
-			@chmod($dir_path, DIR_WRITE_MODE);			
+
+			@chmod($dir_path, DIR_WRITE_MODE);
 		}
-		
+
 		if (write_file($dir_path.$filename, serialize($object)) === FALSE)
 		{
 			return FALSE;
 		}
-		
-		@chmod($dir_path.$filename, DIR_WRITE_MODE);
+
+		@chmod($dir_path.$filename, FILE_WRITE_MODE);
 		return TRUE;
 	}
 
@@ -159,19 +159,19 @@ class CI_DB_Cache {
 	 * @return	bool
 	 */
 	function delete($segment_one = '', $segment_two = '')
-	{	
+	{
 		if ($segment_one == '')
 		{
 			$segment_one  = ($this->CI->uri->segment(1) == FALSE) ? 'default' : $this->CI->uri->segment(1);
 		}
-		
+
 		if ($segment_two == '')
 		{
 			$segment_two = ($this->CI->uri->segment(2) == FALSE) ? 'index' : $this->CI->uri->segment(2);
 		}
-		
+
 		$dir_path = $this->db->cachedir.$segment_one.'+'.$segment_two.'/';
-		
+
 		delete_files($dir_path, TRUE);
 	}
 
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index b2a3c2ebd..2d8f592e3 100644..100755
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -71,13 +71,13 @@ class CI_DB_driver {
 	var $limit_used;
 
 
-	
+
 	/**
 	 * Constructor.  Accepts one parameter containing the database
 	 * connection settings.
 	 *
 	 * @param array
-	 */	
+	 */
 	function CI_DB_driver($params)
 	{
 		if (is_array($params))
@@ -90,7 +90,7 @@ class CI_DB_driver {
 
 		log_message('debug', 'Database Driver Class Initialized');
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -99,7 +99,7 @@ class CI_DB_driver {
 	 * @access	private Called by the constructor
 	 * @param	mixed
 	 * @return	void
-	 */	
+	 */
 	function initialize()
 	{
 		// If an existing connection resource is available
@@ -108,9 +108,9 @@ class CI_DB_driver {
 		{
 			return TRUE;
 		}
-	
+
 		// ----------------------------------------------------------------
-		
+
 		// Connect to the database and set the connection ID
 		$this->conn_id = ($this->pconnect == FALSE) ? $this->db_connect() : $this->db_pconnect();
 
@@ -118,7 +118,7 @@ class CI_DB_driver {
 		if ( ! $this->conn_id)
 		{
 			log_message('error', 'Unable to connect to the database');
-			
+
 			if ($this->db_debug)
 			{
 				$this->display_error('db_unable_to_connect');
@@ -134,12 +134,12 @@ class CI_DB_driver {
 			if ( ! $this->db_select())
 			{
 				log_message('error', 'Unable to select database: '.$this->database);
-			
+
 				if ($this->db_debug)
 				{
 					$this->display_error('db_unable_to_select', $this->database);
 				}
-				return FALSE;			
+				return FALSE;
 			}
 			else
 			{
@@ -148,14 +148,14 @@ class CI_DB_driver {
 				{
 					return FALSE;
 				}
-		
+
 				return TRUE;
 			}
 		}
 
 		return TRUE;
 	}
-		
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -171,26 +171,26 @@ class CI_DB_driver {
 		if ( ! $this->_db_set_charset($this->char_set, $this->dbcollat))
 		{
 			log_message('error', 'Unable to set database connection charset: '.$this->char_set);
-		
+
 			if ($this->db_debug)
 			{
 				$this->display_error('db_unable_to_set_charset', $this->char_set);
 			}
-			
+
 			return FALSE;
 		}
-		
+
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
 	 * The name of the platform in use (mysql, mssql, etc...)
 	 *
 	 * @access	public
-	 * @return	string		
-	 */	
+	 * @return	string
+	 */
 	function platform()
 	{
 		return $this->dbdriver;
@@ -203,8 +203,8 @@ class CI_DB_driver {
 	 * version of the database being used
 	 *
 	 * @access	public
-	 * @return	string	
-	 */	
+	 * @return	string
+	 */
 	function version()
 	{
 		if (FALSE === ($sql = $this->_version()))
@@ -215,16 +215,22 @@ class CI_DB_driver {
 			}
 			return FALSE;
 		}
-		
-		if ($this->dbdriver == 'oci8')
+
+		// Some DBs have functions that return the version, and don't run special
+		// SQL queries per se. In these instances, just return the result.
+		$driver_version_exceptions = array('oci8', 'sqlite');
+
+		if (in_array($this->dbdriver, $driver_version_exceptions))
 		{
 			return $sql;
 		}
-	
-		$query = $this->query($sql);
-		return $query->row('ver');
+		else
+		{
+			$query = $this->query($sql);
+			return $query->row('ver');
+		}
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -239,8 +245,8 @@ class CI_DB_driver {
 	 * @access	public
 	 * @param	string	An SQL query string
 	 * @param	array	An array of binding data
-	 * @return	mixed		
-	 */	
+	 * @return	mixed
+	 */
 	function query($sql, $binds = FALSE, $return_object = TRUE)
 	{
 		if ($sql == '')
@@ -255,10 +261,10 @@ class CI_DB_driver {
 
 		// Verify table prefix and replace if necessary
 		if ( ($this->dbprefix != '' AND $this->swap_pre != '') AND ($this->dbprefix != $this->swap_pre) )
-		{			
+		{
 			$sql = preg_replace("/(\W)".$this->swap_pre."(\S+?)/", "\\1".$this->dbprefix."\\2", $sql);
 		}
-		
+
 		// Is query caching enabled?  If the query is a "read type"
 		// we will load the caching class and return the previously
 		// cached query if it exists
@@ -273,7 +279,7 @@ class CI_DB_driver {
 				}
 			}
 		}
-		
+
 		// Compile binds if needed
 		if ($binds !== FALSE)
 		{
@@ -285,10 +291,10 @@ class CI_DB_driver {
 		{
 			$this->queries[] = $sql;
 		}
-		
+
 		// Start the Query Timer
 		$time_start = list($sm, $ss) = explode(' ', microtime());
-	
+
 		// Run the Query
 		if (FALSE === ($this->result_id = $this->simple_query($sql)))
 		{
@@ -296,7 +302,7 @@ class CI_DB_driver {
 			{
 				$this->query_times[] = 0;
 			}
-		
+
 			// This will trigger a rollback if transactions are being used
 			$this->_trans_status = FALSE;
 
@@ -306,10 +312,10 @@ class CI_DB_driver {
 				// additional queries before displaying the error
 				$error_no = $this->_error_number();
 				$error_msg = $this->_error_message();
-				
+
 				// We call this function in order to roll-back queries
 				// if transactions are enabled.  If we don't call this here
-				// the error message will trigger an exit, causing the 
+				// the error message will trigger an exit, causing the
 				// transactions to remain in limbo.
 				$this->trans_complete();
 
@@ -323,10 +329,10 @@ class CI_DB_driver {
 											)
 										);
 			}
-		
+
 			return FALSE;
 		}
-		
+
 		// Stop and aggregate the query time results
 		$time_end = list($em, $es) = explode(' ', microtime());
 		$this->benchmark += ($em + $es) - ($sm + $ss);
@@ -335,10 +341,10 @@ class CI_DB_driver {
 		{
 			$this->query_times[] = ($em + $es) - ($sm + $ss);
 		}
-		
+
 		// Increment the query counter
 		$this->query_count++;
-		
+
 		// Was the query a "write" type?
 		// If so we'll simply return true
 		if ($this->is_write_type($sql) === TRUE)
@@ -349,10 +355,10 @@ class CI_DB_driver {
 			{
 				$this->CACHE->delete();
 			}
-		
+
 			return TRUE;
 		}
-		
+
 		// Return TRUE if we don't need to create a result object
 		// Currently only the Oracle driver uses this when stored
 		// procedures are used
@@ -360,11 +366,11 @@ class CI_DB_driver {
 		{
 			return TRUE;
 		}
-	
-		// Load and instantiate the result driver	
-		
-		$driver 		= $this->load_rdriver();
-		$RES 			= new $driver();
+
+		// Load and instantiate the result driver
+
+		$driver			= $this->load_rdriver();
+		$RES			= new $driver();
 		$RES->conn_id	= $this->conn_id;
 		$RES->result_id	= $this->result_id;
 
@@ -375,10 +381,10 @@ class CI_DB_driver {
 			$RES->limit_used	= $this->limit_used;
 			$this->stmt_id		= FALSE;
 		}
-		
+
 		// oci8 vars must be set before calling this
 		$RES->num_rows	= $RES->num_rows();
-				
+
 		// Is query caching enabled?  If so, we'll serialize the
 		// result object and save it to a cache file.
 		if ($this->cache_on == TRUE AND $this->_cache_init())
@@ -390,17 +396,17 @@ class CI_DB_driver {
 			// result object, so we'll have to compile the data
 			// and save it)
 			$CR = new CI_DB_result();
-			$CR->num_rows 		= $RES->num_rows();
+			$CR->num_rows		= $RES->num_rows();
 			$CR->result_object	= $RES->result_object();
 			$CR->result_array	= $RES->result_array();
-			
+
 			// Reset these since cached objects can not utilize resource IDs.
 			$CR->conn_id		= NULL;
 			$CR->result_id		= NULL;
 
 			$this->CACHE->write($sql, $CR);
 		}
-		
+
 		return $RES;
 	}
 
@@ -410,8 +416,8 @@ class CI_DB_driver {
 	 * Load the result drivers
 	 *
 	 * @access	public
-	 * @return	string 	the name of the result class		
-	 */		
+	 * @return	string	the name of the result class
+	 */
 	function load_rdriver()
 	{
 		$driver = 'CI_DB_'.$this->dbdriver.'_result';
@@ -421,10 +427,10 @@ class CI_DB_driver {
 			include_once(BASEPATH.'database/DB_result'.EXT);
 			include_once(BASEPATH.'database/drivers/'.$this->dbdriver.'/'.$this->dbdriver.'_result'.EXT);
 		}
-		
+
 		return $driver;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -435,8 +441,8 @@ class CI_DB_driver {
 	 *
 	 * @access	public
 	 * @param	string	the sql query
-	 * @return	mixed		
-	 */	
+	 * @return	mixed
+	 */
 	function simple_query($sql)
 	{
 		if ( ! $this->conn_id)
@@ -446,7 +452,7 @@ class CI_DB_driver {
 
 		return $this->_execute($sql);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -454,8 +460,8 @@ class CI_DB_driver {
 	 * This permits transactions to be disabled at run-time.
 	 *
 	 * @access	public
-	 * @return	void		
-	 */	
+	 * @return	void
+	 */
 	function trans_off()
 	{
 		$this->trans_enabled = FALSE;
@@ -471,23 +477,23 @@ class CI_DB_driver {
 	 * a failure of one group will not affect any others
 	 *
 	 * @access	public
-	 * @return	void		
-	 */	
+	 * @return	void
+	 */
 	function trans_strict($mode = TRUE)
 	{
 		$this->trans_strict = is_bool($mode) ? $mode : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
 	 * Start Transaction
 	 *
 	 * @access	public
-	 * @return	void		
-	 */	
+	 * @return	void
+	 */
 	function trans_start($test_mode = FALSE)
-	{	
+	{
 		if ( ! $this->trans_enabled)
 		{
 			return FALSE;
@@ -499,7 +505,7 @@ class CI_DB_driver {
 			$this->_trans_depth += 1;
 			return;
 		}
-		
+
 		$this->trans_begin($test_mode);
 	}
 
@@ -509,27 +515,27 @@ class CI_DB_driver {
 	 * Complete Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_complete()
 	{
 		if ( ! $this->trans_enabled)
 		{
 			return FALSE;
 		}
-	
+
 		// When transactions are nested we only begin/commit/rollback the outermost ones
 		if ($this->_trans_depth > 1)
 		{
 			$this->_trans_depth -= 1;
 			return TRUE;
 		}
-	
+
 		// The query() function will set this flag to FALSE in the event that a query failed
 		if ($this->_trans_status === FALSE)
 		{
 			$this->trans_rollback();
-			
+
 			// If we are NOT running in strict mode, we will reset
 			// the _trans_status flag so that subsequent groups of transactions
 			// will be permitted.
@@ -541,7 +547,7 @@ class CI_DB_driver {
 			log_message('debug', 'DB Transaction Failure');
 			return FALSE;
 		}
-		
+
 		$this->trans_commit();
 		return TRUE;
 	}
@@ -552,8 +558,8 @@ class CI_DB_driver {
 	 * Lets you retrieve the transaction flag to determine if it has failed
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_status()
 	{
 		return $this->_trans_status;
@@ -567,20 +573,20 @@ class CI_DB_driver {
 	 * @access	public
 	 * @param	string	the sql statement
 	 * @param	array	an array of bind data
-	 * @return	string		
-	 */	
+	 * @return	string
+	 */
 	function compile_binds($sql, $binds)
 	{
 		if (strpos($sql, $this->bind_marker) === FALSE)
 		{
 			return $sql;
 		}
-		
+
 		if ( ! is_array($binds))
 		{
 			$binds = array($binds);
 		}
-		
+
 		// Get the sql segments around the bind markers
 		$segments = explode($this->bind_marker, $sql);
 
@@ -601,7 +607,7 @@ class CI_DB_driver {
 
 		return $result;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -609,8 +615,8 @@ class CI_DB_driver {
 	 *
 	 * @access	public
 	 * @param	string	An SQL query string
-	 * @return	boolean		
-	 */	
+	 * @return	boolean
+	 */
 	function is_write_type($sql)
 	{
 		if ( ! preg_match('/^\s*"?(SET|INSERT|UPDATE|DELETE|REPLACE|CREATE|DROP|TRUNCATE|LOAD DATA|COPY|ALTER|GRANT|REVOKE|LOCK|UNLOCK)\s+/i', $sql))
@@ -619,7 +625,7 @@ class CI_DB_driver {
 		}
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -627,34 +633,34 @@ class CI_DB_driver {
 	 *
 	 * @access	public
 	 * @param	integer	The number of decimal places
-	 * @return	integer		
-	 */	
+	 * @return	integer
+	 */
 	function elapsed_time($decimals = 6)
 	{
 		return number_format($this->benchmark, $decimals);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
 	 * Returns the total number of queries
 	 *
 	 * @access	public
-	 * @return	integer		
-	 */	
+	 * @return	integer
+	 */
 	function total_queries()
 	{
 		return $this->query_count;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
 	 * Returns the last query that was executed
 	 *
 	 * @access	public
-	 * @return	void		
-	 */	
+	 * @return	void
+	 */
 	function last_query()
 	{
 		return end($this->queries);
@@ -670,8 +676,8 @@ class CI_DB_driver {
 	 *
 	 * @access	public
 	 * @param	string
-	 * @return	mixed		
-	 */	
+	 * @return	mixed
+	 */
 	function escape($str)
 	{
 		if (is_string($str))
@@ -691,24 +697,24 @@ class CI_DB_driver {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Escape LIKE String
 	 *
 	 * Calls the individual driver for platform
 	 * specific escaping for LIKE conditions
-	 * 
+	 *
 	 * @access	public
 	 * @param	string
 	 * @return	mixed
 	 */
-    function escape_like_str($str)    
-    {    
-    	return $this->escape_str($str, TRUE);
+	function escape_like_str($str)
+	{
+		return $this->escape_str($str, TRUE);
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Primary
 	 *
@@ -717,12 +723,12 @@ class CI_DB_driver {
 	 *
 	 * @access	public
 	 * @param	string	the table name
-	 * @return	string		
-	 */	
+	 * @return	string
+	 */
 	function primary($table = '')
-	{	
+	{
 		$fields = $this->list_fields($table);
-		
+
 		if ( ! is_array($fields))
 		{
 			return FALSE;
@@ -737,8 +743,8 @@ class CI_DB_driver {
 	 * Returns an array of table names
 	 *
 	 * @access	public
-	 * @return	array		
-	 */	
+	 * @return	array
+	 */
 	function list_tables($constrain_by_prefix = FALSE)
 	{
 		// Is there a cached result?
@@ -746,7 +752,7 @@ class CI_DB_driver {
 		{
 			return $this->data_cache['table_names'];
 		}
-	
+
 		if (FALSE === ($sql = $this->_list_tables($constrain_by_prefix)))
 		{
 			if ($this->db_debug)
@@ -758,7 +764,7 @@ class CI_DB_driver {
 
 		$retval = array();
 		$query = $this->query($sql);
-		
+
 		if ($query->num_rows() > 0)
 		{
 			foreach($query->result_array() as $row)
@@ -777,7 +783,7 @@ class CI_DB_driver {
 		$this->data_cache['table_names'] = $retval;
 		return $this->data_cache['table_names'];
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -786,10 +792,10 @@ class CI_DB_driver {
 	 * @return	boolean
 	 */
 	function table_exists($table_name)
-	{	
+	{
 		return ( ! in_array($this->_protect_identifiers($table_name, TRUE, FALSE, FALSE), $this->list_tables())) ? FALSE : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -797,7 +803,7 @@ class CI_DB_driver {
 	 *
 	 * @access	public
 	 * @param	string	the table name
-	 * @return	array		
+	 * @return	array
 	 */
 	function list_fields($table = '')
 	{
@@ -806,7 +812,7 @@ class CI_DB_driver {
 		{
 			return $this->data_cache['field_names'][$table];
 		}
-	
+
 		if ($table == '')
 		{
 			if ($this->db_debug)
@@ -815,8 +821,8 @@ class CI_DB_driver {
 			}
 			return FALSE;
 		}
-		
-		if (FALSE === ($sql = $this->_list_columns($this->_protect_identifiers($table, TRUE, NULL, FALSE))))
+
+		if (FALSE === ($sql = $this->_list_columns($table)))
 		{
 			if ($this->db_debug)
 			{
@@ -824,9 +830,9 @@ class CI_DB_driver {
 			}
 			return FALSE;
 		}
-		
+
 		$query = $this->query($sql);
-		
+
 		$retval = array();
 		foreach($query->result_array() as $row)
 		{
@@ -837,9 +843,9 @@ class CI_DB_driver {
 			else
 			{
 				$retval[] = current($row);
-			}		
+			}
 		}
-		
+
 		$this->data_cache['field_names'][$table] = $retval;
 		return $this->data_cache['field_names'][$table];
 	}
@@ -854,10 +860,10 @@ class CI_DB_driver {
 	 * @return	boolean
 	 */
 	function field_exists($field_name, $table_name)
-	{	
+	{
 		return ( ! in_array($field_name, $this->list_fields($table_name))) ? FALSE : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -865,8 +871,8 @@ class CI_DB_driver {
 	 *
 	 * @access	public
 	 * @param	string	the table name
-	 * @return	object		
-	 */	
+	 * @return	object
+	 */
 	function field_data($table = '')
 	{
 		if ($table == '')
@@ -877,36 +883,36 @@ class CI_DB_driver {
 			}
 			return FALSE;
 		}
-		
+
 		$query = $this->query($this->_field_data($this->_protect_identifiers($table, TRUE, NULL, FALSE)));
 
 		return $query->field_data();
-	}	
+	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Generate an insert string
 	 *
 	 * @access	public
 	 * @param	string	the table upon which the query will be performed
 	 * @param	array	an associative array data of key/values
-	 * @return	string		
-	 */	
+	 * @return	string
+	 */
 	function insert_string($table, $data)
 	{
 		$fields = array();
 		$values = array();
-		
+
 		foreach($data as $key => $val)
 		{
 			$fields[] = $this->_escape_identifiers($key);
 			$values[] = $this->escape($val);
 		}
-				
+
 		return $this->_insert($this->_protect_identifiers($table, TRUE, NULL, FALSE), $fields, $values);
-	}	
-	
+	}
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -916,15 +922,15 @@ class CI_DB_driver {
 	 * @param	string	the table upon which the query will be performed
 	 * @param	array	an associative array data of key/values
 	 * @param	mixed	the "where" statement
-	 * @return	string		
-	 */	
+	 * @return	string
+	 */
 	function update_string($table, $data, $where)
 	{
 		if ($where == '')
 		{
 			return false;
 		}
-					
+
 		$fields = array();
 		foreach($data as $key => $val)
 		{
@@ -941,23 +947,23 @@ class CI_DB_driver {
 			foreach ($where as $key => $val)
 			{
 				$prefix = (count($dest) == 0) ? '' : ' AND ';
-	
+
 				if ($val !== '')
 				{
 					if ( ! $this->_has_operator($key))
 					{
 						$key .= ' =';
 					}
-				
+
 					$val = ' '.$this->escape($val);
 				}
-							
+
 				$dest[] = $prefix.$key.$val;
 			}
-		}		
+		}
 
 		return $this->_update($this->_protect_identifiers($table, TRUE, NULL, FALSE), $fields, $dest);
-	}	
+	}
 
 	// --------------------------------------------------------------------
 
@@ -987,17 +993,17 @@ class CI_DB_driver {
 	 * @access	public
 	 * @param	string	the function name
 	 * @param	mixed	any parameters needed by the function
-	 * @return	mixed		
-	 */	
+	 * @return	mixed
+	 */
 	function call_function($function)
 	{
 		$driver = ($this->dbdriver == 'postgre') ? 'pg_' : $this->dbdriver.'_';
-	
+
 		if (FALSE === strpos($driver, $function))
 		{
 			$function = $driver.$function;
 		}
-		
+
 		if ( ! function_exists($function))
 		{
 			if ($this->db_debug)
@@ -1022,7 +1028,7 @@ class CI_DB_driver {
 	 * @access	public
 	 * @param	string	the path to the cache directory
 	 * @return	void
-	 */		
+	 */
 	function cache_set_path($path = '')
 	{
 		$this->cachedir = $path;
@@ -1035,7 +1041,7 @@ class CI_DB_driver {
 	 *
 	 * @access	public
 	 * @return	void
-	 */		
+	 */
 	function cache_on()
 	{
 		$this->cache_on = TRUE;
@@ -1049,13 +1055,13 @@ class CI_DB_driver {
 	 *
 	 * @access	public
 	 * @return	void
-	 */	
+	 */
 	function cache_off()
 	{
 		$this->cache_on = FALSE;
 		return FALSE;
 	}
-	
+
 
 	// --------------------------------------------------------------------
 
@@ -1064,7 +1070,7 @@ class CI_DB_driver {
 	 *
 	 * @access	public
 	 * @return	void
-	 */		
+	 */
 	function cache_delete($segment_one = '', $segment_two = '')
 	{
 		if ( ! $this->_cache_init())
@@ -1081,7 +1087,7 @@ class CI_DB_driver {
 	 *
 	 * @access	public
 	 * @return	void
-	 */		
+	 */
 	function cache_delete_all()
 	{
 		if ( ! $this->_cache_init())
@@ -1099,7 +1105,7 @@ class CI_DB_driver {
 	 *
 	 * @access	private
 	 * @return	void
-	 */	
+	 */
 	function _cache_init()
 	{
 		if (is_object($this->CACHE) AND class_exists('CI_DB_Cache'))
@@ -1125,8 +1131,8 @@ class CI_DB_driver {
 	 * Close DB Connection
 	 *
 	 * @access	public
-	 * @return	void		
-	 */	
+	 * @return	void
+	 */
 	function close()
 	{
 		if (is_resource($this->conn_id) OR is_object($this->conn_id))
@@ -1135,7 +1141,7 @@ class CI_DB_driver {
 		}
 		$this->conn_id = FALSE;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1145,11 +1151,11 @@ class CI_DB_driver {
 	 * @param	string	the error message
 	 * @param	string	any "swap" values
 	 * @param	boolean	whether to localize the message
-	 * @return	string	sends the application/error_db.php template		
-	 */	
+	 * @return	string	sends the application/error_db.php template
+	 */
 	function display_error($error = '', $swap = '', $native = FALSE)
 	{
-		$LANG =& load_class('Language');
+		$LANG =& load_class('Lang', 'core');
 		$LANG->load('db');
 
 		$heading = $LANG->line('db_error_heading');
@@ -1162,8 +1168,26 @@ class CI_DB_driver {
 		{
 			$message = ( ! is_array($error)) ? array(str_replace('%s', $swap, $LANG->line($error))) : $error;
 		}
-		
-		$error =& load_class('Exceptions');
+
+		// Find the most likely culprit of the error by going through
+		// the backtrace until the source file is no longer in the
+		// database folder.
+
+		$trace = debug_backtrace();
+
+		foreach($trace as $call)
+		{
+			if (isset($call['file']) && strpos($call['file'], BASEPATH.'database') === FALSE)
+			{
+				// Found it - use a relative path for safety
+				$message[] = 'Filename: '.str_replace(array(BASEPATH, APPPATH), '', $call['file']);
+				$message[] = 'Line Number: '.$call['line'];
+
+				break;
+			}
+		}
+
+		$error =& load_class('Exceptions', 'core');
 		echo $error->show_error($heading, $message, 'error_db');
 		exit;
 	}
@@ -1190,7 +1214,7 @@ class CI_DB_driver {
 	 * Protect Identifiers
 	 *
 	 * This function is used extensively by the Active Record class, and by
-	 * a couple functions in this class. 
+	 * a couple functions in this class.
 	 * It takes a column or table name (optionally with an alias) and inserts
 	 * the table prefix onto it.  Some logic is necessary in order to deal with
 	 * column names that include the path.  Consider a query like this:
@@ -1212,7 +1236,7 @@ class CI_DB_driver {
 	 * @param	mixed
 	 * @param	bool
 	 * @return	string
-	 */	
+	 */
 	function _protect_identifiers($item, $prefix_single = FALSE, $protect_identifiers = NULL, $field_exists = TRUE)
 	{
 		if ( ! is_bool($protect_identifiers))
@@ -1234,7 +1258,7 @@ class CI_DB_driver {
 
 		// Convert tabs or multiple spaces into single spaces
 		$item = preg_replace('/[\t ]+/', ' ', $item);
-	
+
 		// If the item has an alias declaration we remove it and set it aside.
 		// Basically we remove everything to the right of the first space
 		$alias = '';
@@ -1245,7 +1269,7 @@ class CI_DB_driver {
 		}
 
 		// This is basically a bug fix for queries that use MAX, MIN, etc.
-		// If a parenthesis is found we know that we do not need to 
+		// If a parenthesis is found we know that we do not need to
 		// escape the data or add a prefix.  There's probably a more graceful
 		// way to deal with this, but I'm not thinking of it -- Rick
 		if (strpos($item, '(') !== FALSE)
@@ -1259,7 +1283,7 @@ class CI_DB_driver {
 		if (strpos($item, '.') !== FALSE)
 		{
 			$parts	= explode('.', $item);
-			
+
 			// Does the first segment of the exploded item match
 			// one of the aliases previously identified?  If so,
 			// we have nothing more to do other than escape the item
@@ -1274,12 +1298,12 @@ class CI_DB_driver {
 							$parts[$key] = $this->_escape_identifiers($val);
 						}
 					}
-				
+
 					$item = implode('.', $parts);
-				}			
+				}
 				return $item.$alias;
 			}
-			
+
 			// Is there a table prefix defined in the config file?  If not, no need to do anything
 			if ($this->dbprefix != '')
 			{
@@ -1302,7 +1326,7 @@ class CI_DB_driver {
 				{
 					$i = 0;
 				}
-				
+
 				// This flag is set when the supplied $item does not contain a field name.
 				// This can happen when this function is being called from a JOIN.
 				if ($field_exists == FALSE)
@@ -1315,22 +1339,22 @@ class CI_DB_driver {
 				{
 					$parts[$i] = preg_replace("/^".$this->swap_pre."(\S+?)/", $this->dbprefix."\\1", $parts[$i]);
 				}
-								
+
 				// We only add the table prefix if it does not already exist
 				if (substr($parts[$i], 0, strlen($this->dbprefix)) != $this->dbprefix)
 				{
 					$parts[$i] = $this->dbprefix.$parts[$i];
 				}
-				
+
 				// Put the parts back together
 				$item = implode('.', $parts);
 			}
-			
+
 			if ($protect_identifiers === TRUE)
 			{
 				$item = $this->_escape_identifiers($item);
 			}
-			
+
 			return $item.$alias;
 		}
 
@@ -1347,14 +1371,14 @@ class CI_DB_driver {
 			if ($prefix_single == TRUE AND substr($item, 0, strlen($this->dbprefix)) != $this->dbprefix)
 			{
 				$item = $this->dbprefix.$item;
-			}		
+			}
 		}
 
 		if ($protect_identifiers === TRUE AND ! in_array($item, $this->_reserved_identifiers))
 		{
 			$item = $this->_escape_identifiers($item);
 		}
-		
+
 		return $item.$alias;
 	}
 
diff --git a/system/database/DB_forge.php b/system/database/DB_forge.php
index c5931db27..27f2c372d 100644..100755
--- a/system/database/DB_forge.php
+++ b/system/database/DB_forge.php
@@ -2,11 +2,11 @@
 /**
  * Code Igniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -24,9 +24,9 @@
  */
 class CI_DB_forge {
 
-	var $fields		 	= array();
+	var $fields			= array();
 	var $keys			= array();
-	var $primary_keys 	= array();
+	var $primary_keys	= array();
 	var $db_char_set	=	'';
 
 	/**
@@ -34,7 +34,7 @@ class CI_DB_forge {
 	 *
 	 * Grabs the CI super object instance so we can access it.
 	 *
-	 */	
+	 */
 	function CI_DB_forge()
 	{
 		// Assign the main database object to $this->db
@@ -55,12 +55,12 @@ class CI_DB_forge {
 	function create_database($db_name)
 	{
 		$sql = $this->_create_database($db_name);
-		
+
 		if (is_bool($sql))
 		{
 			return $sql;
 		}
-	
+
 		return $this->db->query($sql);
 	}
 
@@ -76,12 +76,12 @@ class CI_DB_forge {
 	function drop_database($db_name)
 	{
 		$sql = $this->_drop_database($db_name);
-		
+
 		if (is_bool($sql))
 		{
 			return $sql;
 		}
-	
+
 		return $this->db->query($sql);
 	}
 
@@ -103,15 +103,15 @@ class CI_DB_forge {
 			{
 				$this->add_key($one, $primary);
 			}
-			
+
 			return;
 		}
-	
+
 		if ($key == '')
 		{
 			show_error('Key information is required for that operation.');
 		}
-		
+
 		if ($primary === TRUE)
 		{
 			$this->primary_keys[] = $key;
@@ -137,7 +137,7 @@ class CI_DB_forge {
 		{
 			show_error('Field information is required.');
 		}
-		
+
 		if (is_string($field))
 		{
 			if ($field == 'id')
@@ -157,16 +157,16 @@ class CI_DB_forge {
 				{
 					show_error('Field information is required for that operation.');
 				}
-				
+
 				$this->fields[] = $field;
 			}
 		}
-		
+
 		if (is_array($field))
 		{
 			$this->fields = array_merge($this->fields, $field);
 		}
-		
+
 	}
 
 	// --------------------------------------------------------------------
@@ -179,19 +179,19 @@ class CI_DB_forge {
 	 * @return	bool
 	 */
 	function create_table($table = '', $if_not_exists = FALSE)
-	{	
+	{
 		if ($table == '')
 		{
 			show_error('A table name is required for that operation.');
 		}
-			
+
 		if (count($this->fields) == 0)
-		{	
+		{
 			show_error('Field information is required.');
 		}
 
 		$sql = $this->_create_table($this->db->dbprefix.$table, $this->fields, $this->primary_keys, $this->keys, $if_not_exists);
-		
+
 		$this->_reset();
 		return $this->db->query($sql);
 	}
@@ -208,12 +208,12 @@ class CI_DB_forge {
 	function drop_table($table_name)
 	{
 		$sql = $this->_drop_table($this->db->dbprefix.$table_name);
-		
+
 		if (is_bool($sql))
 		{
 			return $sql;
 		}
-	
+
 		return $this->db->query($sql);
 	}
 
@@ -233,7 +233,7 @@ class CI_DB_forge {
 		{
 			show_error('A table name is required for that operation.');
 		}
-			
+
 		$sql = $this->_rename_table($table_name, $new_table_name);
 		return $this->db->query($sql);
 	}
@@ -261,24 +261,25 @@ class CI_DB_forge {
 
 		foreach ($field as $k => $v)
 		{
-			$this->add_field(array($k => $field[$k]));		
+			$this->add_field(array($k => $field[$k]));
 
 			if (count($this->fields) == 0)
-			{	
+			{
 				show_error('Field information is required.');
 			}
-			
+
 			$sql = $this->_alter_table('ADD', $this->db->dbprefix.$table, $this->fields, $after_field);
 
 			$this->_reset();
-	
+
 			if ($this->db->query($sql) === FALSE)
 			{
 				return FALSE;
 			}
 		}
-		
+
 		return TRUE;
+
 	}
 
 	// --------------------------------------------------------------------
@@ -293,7 +294,7 @@ class CI_DB_forge {
 	 */
 	function drop_column($table = '', $column_name = '')
 	{
-	
+
 		if ($table == '')
 		{
 			show_error('A table name is required for that operation.');
@@ -305,7 +306,7 @@ class CI_DB_forge {
 		}
 
 		$sql = $this->_alter_table('DROP', $this->db->dbprefix.$table, $column_name);
-	
+
 		return $this->db->query($sql);
 	}
 
@@ -332,23 +333,29 @@ class CI_DB_forge {
 
 		foreach ($field as $k => $v)
 		{
+			// If no name provided, use the current name
+			if ( ! isset($field[$k]['name']))
+			{
+				$field[$k]['name'] = $k;
+			}
+
 			$this->add_field(array($k => $field[$k]));
 
 			if (count($this->fields) == 0)
-			{	
+			{
 				show_error('Field information is required.');
 			}
-		
+
 			$sql = $this->_alter_table('CHANGE', $this->db->dbprefix.$table, $this->fields);
 
 			$this->_reset();
-	
+
 			if ($this->db->query($sql) === FALSE)
 			{
 				return FALSE;
 			}
 		}
-		
+
 		return TRUE;
 	}
 
@@ -364,9 +371,9 @@ class CI_DB_forge {
 	 */
 	function _reset()
 	{
-		$this->fields 		= array();
+		$this->fields		= array();
 		$this->keys			= array();
-		$this->primary_keys 	= array();
+		$this->primary_keys	= array();
 	}
 
 }
diff --git a/system/database/DB_result.php b/system/database/DB_result.php
index b9e64feeb..fb4268c21 100644..100755
--- a/system/database/DB_result.php
+++ b/system/database/DB_result.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -28,13 +28,14 @@
  */
 class CI_DB_result {
 
-	var $conn_id		= NULL;
-	var $result_id		= NULL;
-	var $result_array	= array();
-	var $result_object	= array();
-	var $current_row 	= 0;
-	var $num_rows		= 0;
-	var $row_data		= NULL;
+	var $conn_id		      = NULL;
+	var $result_id		      = NULL;
+	var $result_array	      = array();
+	var $result_object	      = array();
+    var $custom_result_object = array();
+	var $current_row	      = 0;
+	var $num_rows		      = 0;
+	var $row_data		      = NULL;
 
 
 	/**
@@ -42,30 +43,67 @@ class CI_DB_result {
 	 *
 	 * @access	public
 	 * @param	string	can be "object" or "array"
-	 * @return	mixed	either a result object or array	
-	 */	
+	 * @return	mixed	either a result object or array
+	 */
 	function result($type = 'object')
-	{	
-		return ($type == 'object') ? $this->result_object() : $this->result_array();
+	{
+        if ($type == 'array') return $this->result_array();
+        else if ($type == 'object') return $this->result_object();
+        else return $this->custom_result_object($type);
 	}
 
 	// --------------------------------------------------------------------
 
+    /**
+     * Custom query result.
+     *
+     * @param  class_name  A string that represents the type of object you want back
+     * @return array of objects
+     */
+    function custom_result_object($class_name)
+    {
+        if (array_key_exists($class_name, $this->custom_result_object))
+        {
+            return $this->custom_result_object[$class_name];
+        }
+        
+        if ($this->result_id === FALSE OR $this->num_rows() == 0)
+        {
+            return array();
+        }
+
+        // add the data to the object
+        $this->_data_seek(0);
+        $result_object = array();
+		while ($row = $this->_fetch_object())
+        {
+            $object = new $class_name();
+            foreach($row as $key => $value)
+            {
+                $object->$key = $value;
+            }
+			$result_object[] = $object;
+		}
+
+        // return the array
+        return $this->custom_result_object[$class_name] = $result_object;
+    }
+
 	/**
 	 * Query result.  "object" version.
 	 *
 	 * @access	public
 	 * @return	object
-	 */	
+	 */
 	function result_object()
 	{
 		if (count($this->result_object) > 0)
 		{
 			return $this->result_object;
 		}
-		
-		// In the event that query caching is on the result_id variable 
-		// will return FALSE since there isn't a valid SQL resource so 
+
+		// In the event that query caching is on the result_id variable
+		// will return FALSE since there isn't a valid SQL resource so
 		// we'll simply return an empty array.
 		if ($this->result_id === FALSE OR $this->num_rows() == 0)
 		{
@@ -77,10 +115,10 @@ class CI_DB_result {
 		{
 			$this->result_object[] = $row;
 		}
-		
+
 		return $this->result_object;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -88,7 +126,7 @@ class CI_DB_result {
 	 *
 	 * @access	public
 	 * @return	array
-	 */	
+	 */
 	function result_array()
 	{
 		if (count($this->result_array) > 0)
@@ -96,8 +134,8 @@ class CI_DB_result {
 			return $this->result_array;
 		}
 
-		// In the event that query caching is on the result_id variable 
-		// will return FALSE since there isn't a valid SQL resource so 
+		// In the event that query caching is on the result_id variable
+		// will return FALSE since there isn't a valid SQL resource so
 		// we'll simply return an empty array.
 		if ($this->result_id === FALSE OR $this->num_rows() == 0)
 		{
@@ -109,7 +147,7 @@ class CI_DB_result {
 		{
 			$this->result_array[] = $row;
 		}
-		
+
 		return $this->result_array;
 	}
 
@@ -121,8 +159,8 @@ class CI_DB_result {
 	 * @access	public
 	 * @param	string
 	 * @param	string	can be "object" or "array"
-	 * @return	mixed	either a result object or array	
-	 */	
+	 * @return	mixed	either a result object or array
+	 */
 	function row($n = 0, $type = 'object')
 	{
 		if ( ! is_numeric($n))
@@ -132,17 +170,19 @@ class CI_DB_result {
 			{
 				$this->row_data = $this->row_array(0);
 			}
-		
+
 			// array_key_exists() instead of isset() to allow for MySQL NULL values
 			if (array_key_exists($n, $this->row_data))
 			{
 				return $this->row_data[$n];
 			}
-			// reset the $n variable if the result was not achieved			
+			// reset the $n variable if the result was not achieved
 			$n = 0;
 		}
-		
-		return ($type == 'object') ? $this->row_object($n) : $this->row_array($n);
+
+        if ($type == 'object') return $this->row_object($n);
+        else if ($type == 'array') return $this->row_array($n);
+        else return $this->custom_row_object($n, $type);
 	}
 
 	// --------------------------------------------------------------------
@@ -152,7 +192,7 @@ class CI_DB_result {
 	 *
 	 * @access	public
 	 * @return	object
-	 */	
+	 */
 	function set_row($key, $value = NULL)
 	{
 		// We cache the row data for subsequent uses
@@ -160,17 +200,17 @@ class CI_DB_result {
 		{
 			$this->row_data = $this->row_array(0);
 		}
-	
+
 		if (is_array($key))
 		{
 			foreach ($key as $k => $v)
 			{
 				$this->row_data[$k] = $v;
 			}
-			
+
 			return;
 		}
-	
+
 		if ($key != '' AND ! is_null($value))
 		{
 			$this->row_data[$key] = $value;
@@ -179,16 +219,39 @@ class CI_DB_result {
 
 	// --------------------------------------------------------------------
 
-	/**
+    /**
+	 * Returns a single result row - custom object version
+	 *
+	 * @access	public
+	 * @return	object
+	 */
+	function custom_row_object($n, $type)
+	{
+		$result = $this->custom_result_object($type);
+
+		if (count($result) == 0)
+		{
+			return $result;
+		}
+
+		if ($n != $this->current_row AND isset($result[$n]))
+		{
+			$this->current_row = $n;
+		}
+
+		return $result[$this->current_row];
+	}
+
+    /**
 	 * Returns a single result row - object version
 	 *
 	 * @access	public
 	 * @return	object
-	 */	
+	 */
 	function row_object($n = 0)
 	{
 		$result = $this->result_object();
-		
+
 		if (count($result) == 0)
 		{
 			return $result;
@@ -209,7 +272,7 @@ class CI_DB_result {
 	 *
 	 * @access	public
 	 * @return	array
-	 */	
+	 */
 	function row_array($n = 0)
 	{
 		$result = $this->result_array();
@@ -218,16 +281,16 @@ class CI_DB_result {
 		{
 			return $result;
 		}
-			
+
 		if ($n != $this->current_row AND isset($result[$n]))
 		{
 			$this->current_row = $n;
 		}
-		
+
 		return $result[$this->current_row];
 	}
 
-		
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -235,7 +298,7 @@ class CI_DB_result {
 	 *
 	 * @access	public
 	 * @return	object
-	 */	
+	 */
 	function first_row($type = 'object')
 	{
 		$result = $this->result($type);
@@ -246,7 +309,7 @@ class CI_DB_result {
 		}
 		return $result[0];
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -254,7 +317,7 @@ class CI_DB_result {
 	 *
 	 * @access	public
 	 * @return	object
-	 */	
+	 */
 	function last_row($type = 'object')
 	{
 		$result = $this->result($type);
@@ -264,7 +327,7 @@ class CI_DB_result {
 			return $result;
 		}
 		return $result[count($result) -1];
-	}	
+	}
 
 	// --------------------------------------------------------------------
 
@@ -273,7 +336,7 @@ class CI_DB_result {
 	 *
 	 * @access	public
 	 * @return	object
-	 */	
+	 */
 	function next_row($type = 'object')
 	{
 		$result = $this->result($type);
@@ -287,10 +350,10 @@ class CI_DB_result {
 		{
 			++$this->current_row;
 		}
-				
+
 		return $result[$this->current_row];
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -298,7 +361,7 @@ class CI_DB_result {
 	 *
 	 * @access	public
 	 * @return	object
-	 */	
+	 */
 	function previous_row($type = 'object')
 	{
 		$result = $this->result($type);
@@ -329,14 +392,14 @@ class CI_DB_result {
 	function num_rows() { return $this->num_rows; }
 	function num_fields() { return 0; }
 	function list_fields() { return array(); }
-	function field_data() { return array(); }	
+	function field_data() { return array(); }
 	function free_result() { return TRUE; }
 	function _data_seek() { return TRUE; }
-	function _fetch_assoc() { return array(); }	
+	function _fetch_assoc() { return array(); }
 	function _fetch_object() { return array(); }
-	
+
 }
 // END DB_result class
 
 /* End of file DB_result.php */
-/* Location: ./system/database/DB_result.php */
\ No newline at end of file
+/* Location: ./system/database/DB_result.php */
diff --git a/system/database/DB_utility.php b/system/database/DB_utility.php
index 94e7a0bda..a5f174f0a 100644..100755
--- a/system/database/DB_utility.php
+++ b/system/database/DB_utility.php
@@ -2,11 +2,11 @@
 /**
  * Code Igniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -25,20 +25,20 @@
 class CI_DB_utility extends CI_DB_forge {
 
 	var $db;
-	var $data_cache 	= array();
+	var $data_cache		= array();
 
 	/**
 	 * Constructor
 	 *
 	 * Grabs the CI super object instance so we can access it.
 	 *
-	 */	
+	 */
 	function CI_DB_utility()
 	{
 		// Assign the main database object to $this->db
 		$CI =& get_instance();
 		$this->db =& $CI->db;
-		
+
 		log_message('debug', "Database Utility Class Initialized");
 	}
 
@@ -51,13 +51,13 @@ class CI_DB_utility extends CI_DB_forge {
 	 * @return	bool
 	 */
 	function list_databases()
-	{	
+	{
 		// Is there a cached result?
 		if (isset($this->data_cache['db_names']))
 		{
 			return $this->data_cache['db_names'];
 		}
-	
+
 		$query = $this->db->query($this->_list_databases());
 		$dbs = array();
 		if ($query->num_rows() > 0)
@@ -67,7 +67,7 @@ class CI_DB_utility extends CI_DB_forge {
 				$dbs[] = current($row);
 			}
 		}
-			
+
 		$this->data_cache['db_names'] = $dbs;
 		return $this->data_cache['db_names'];
 	}
@@ -75,6 +75,31 @@ class CI_DB_utility extends CI_DB_forge {
 	// --------------------------------------------------------------------
 
 	/**
+	 * Determine if a particular database exists
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	boolean
+	 */
+	function database_exists($database_name)
+	{
+		// Some databases won't have access to the list_databases() function, so
+		// this is intended to allow them to override with their own functions as
+		// defined in $driver_utility.php
+		if (method_exists($this, '_database_exists'))
+		{
+			return $this->_database_exists($database_name);
+		}
+		else
+		{
+			return ( ! in_array($database_name, $this->list_databases())) ? FALSE : TRUE;
+		}
+	}
+
+
+	// --------------------------------------------------------------------
+
+	/**
 	 * Optimize Table
 	 *
 	 * @access	public
@@ -84,15 +109,15 @@ class CI_DB_utility extends CI_DB_forge {
 	function optimize_table($table_name)
 	{
 		$sql = $this->_optimize_table($table_name);
-		
+
 		if (is_bool($sql))
 		{
 				show_error('db_must_use_set');
 		}
-	
+
 		$query = $this->db->query($sql);
 		$res = $query->result_array();
-		
+
 		// Note: Due to a bug in current() that affects some versions
 		// of PHP we can not pass function call directly into it
 		return current($res);
@@ -112,14 +137,14 @@ class CI_DB_utility extends CI_DB_forge {
 		foreach ($this->db->list_tables() as $table_name)
 		{
 			$sql = $this->_optimize_table($table_name);
-			
+
 			if (is_bool($sql))
 			{
 				return $sql;
 			}
-			
+
 			$query = $this->db->query($sql);
-			
+
 			// Build the result array...
 			// Note: Due to a bug in current() that affects some versions
 			// of PHP we can not pass function call directly into it
@@ -128,7 +153,7 @@ class CI_DB_utility extends CI_DB_forge {
 			$key = str_replace($this->db->database.'.', '', current($res));
 			$keys = array_keys($res);
 			unset($res[$keys[0]]);
-			
+
 			$result[$key] = $res;
 		}
 
@@ -147,20 +172,20 @@ class CI_DB_utility extends CI_DB_forge {
 	function repair_table($table_name)
 	{
 		$sql = $this->_repair_table($table_name);
-		
+
 		if (is_bool($sql))
 		{
 			return $sql;
 		}
-	
+
 		$query = $this->db->query($sql);
-		
+
 		// Note: Due to a bug in current() that affects some versions
 		// of PHP we can not pass function call directly into it
 		$res = $query->result_array();
 		return current($res);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -178,25 +203,25 @@ class CI_DB_utility extends CI_DB_forge {
 		if ( ! is_object($query) OR ! method_exists($query, 'list_fields'))
 		{
 			show_error('You must submit a valid result object');
-		}	
-	
+		}
+
 		$out = '';
-		
+
 		// First generate the headings from the table column names
 		foreach ($query->list_fields() as $name)
 		{
 			$out .= $enclosure.str_replace($enclosure, $enclosure.$enclosure, $name).$enclosure.$delim;
 		}
-		
+
 		$out = rtrim($out);
 		$out .= $newline;
-		
+
 		// Next blast through the result array and build out the rows
 		foreach ($query->result_array() as $row)
 		{
 			foreach ($row as $item)
 			{
-				$out .= $enclosure.str_replace($enclosure, $enclosure.$enclosure, $item).$enclosure.$delim;			
+				$out .= $enclosure.str_replace($enclosure, $enclosure.$enclosure, $item).$enclosure.$delim;
 			}
 			$out = rtrim($out);
 			$out .= $newline;
@@ -204,7 +229,7 @@ class CI_DB_utility extends CI_DB_forge {
 
 		return $out;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -221,7 +246,7 @@ class CI_DB_utility extends CI_DB_forge {
 		{
 			show_error('You must submit a valid result object');
 		}
-		
+
 		// Set our default values
 		foreach (array('root' => 'root', 'element' => 'element', 'newline' => "\n", 'tab' => "\t") as $key => $val)
 		{
@@ -230,10 +255,10 @@ class CI_DB_utility extends CI_DB_forge {
 				$params[$key] = $val;
 			}
 		}
-		
+
 		// Create variables for convenience
 		extract($params);
-			
+
 		// Load the xml helper
 		$CI =& get_instance();
 		$CI->load->helper('xml');
@@ -243,7 +268,7 @@ class CI_DB_utility extends CI_DB_forge {
 		foreach ($query->result_array() as $row)
 		{
 			$xml .= $tab."<{$element}>".$newline;
-			
+
 			foreach ($row as $key => $val)
 			{
 				$xml .= $tab.$tab."<{$key}>".xml_convert($val)."</{$key}>".$newline;
@@ -251,7 +276,7 @@ class CI_DB_utility extends CI_DB_forge {
 			$xml .= $tab."</{$element}>".$newline;
 		}
 		$xml .= "</$root>".$newline;
-		
+
 		return $xml;
 	}
 
@@ -272,9 +297,9 @@ class CI_DB_utility extends CI_DB_forge {
 		{
 			$params = array('tables' => $params);
 		}
-		
+
 		// ------------------------------------------------------
-	
+
 		// Set up our default preferences
 		$prefs = array(
 							'tables'		=> array(),
@@ -300,13 +325,13 @@ class CI_DB_utility extends CI_DB_forge {
 
 		// ------------------------------------------------------
 
-		// Are we backing up a complete database or individual tables?	
+		// Are we backing up a complete database or individual tables?
 		// If no table names were submitted we'll fetch the entire table list
 		if (count($prefs['tables']) == 0)
 		{
 			$prefs['tables'] = $this->db->list_tables();
 		}
-		
+
 		// ------------------------------------------------------
 
 		// Validate the format
@@ -320,13 +345,13 @@ class CI_DB_utility extends CI_DB_forge {
 		// Is the encoder supported?  If not, we'll either issue an
 		// error or use plain text depending on the debug settings
 		if (($prefs['format'] == 'gzip' AND ! @function_exists('gzencode'))
-		 OR ($prefs['format'] == 'zip'  AND ! @function_exists('gzcompress')))
+		OR ($prefs['format'] == 'zip'  AND ! @function_exists('gzcompress')))
 		{
 			if ($this->db->db_debug)
 			{
 				return $this->db->display_error('db_unsuported_compression');
 			}
-		
+
 			$prefs['format'] = 'txt';
 		}
 
@@ -340,7 +365,7 @@ class CI_DB_utility extends CI_DB_forge {
 		}
 
 		// ------------------------------------------------------
-				
+
 		// Was a Gzip file requested?
 		if ($prefs['format'] == 'gzip')
 		{
@@ -348,7 +373,7 @@ class CI_DB_utility extends CI_DB_forge {
 		}
 
 		// ------------------------------------------------------
-		
+
 		// Was a text file requested?
 		if ($prefs['format'] == 'txt')
 		{
@@ -357,7 +382,7 @@ class CI_DB_utility extends CI_DB_forge {
 
 		// ------------------------------------------------------
 
-		// Was a Zip file requested?		
+		// Was a Zip file requested?
 		if ($prefs['format'] == 'zip')
 		{
 			// If they included the .zip file extension we'll remove it
@@ -365,7 +390,7 @@ class CI_DB_utility extends CI_DB_forge {
 			{
 				$prefs['filename'] = str_replace('.zip', '', $prefs['filename']);
 			}
-			
+
 			// Tack on the ".sql" file extension if needed
 			if ( ! preg_match("|.+?\.sql$|", $prefs['filename']))
 			{
@@ -373,13 +398,13 @@ class CI_DB_utility extends CI_DB_forge {
 			}
 
 			// Load the Zip class and output it
-			
+
 			$CI =& get_instance();
 			$CI->load->library('zip');
-			$CI->zip->add_data($prefs['filename'], $this->_backup($prefs));							
+			$CI->zip->add_data($prefs['filename'], $this->_backup($prefs));
 			return $CI->zip->get_zip();
 		}
-		
+
 	}
 
 }
diff --git a/system/database/drivers/index.html b/system/database/drivers/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/database/drivers/index.html
+++ b/system/database/drivers/index.html
diff --git a/system/database/drivers/mssql/index.html b/system/database/drivers/mssql/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/database/drivers/mssql/index.html
+++ b/system/database/drivers/mssql/index.html
diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php
index f301ba533..5a69132cd 100644..100755
--- a/system/database/drivers/mssql/mssql_driver.php
+++ b/system/database/drivers/mssql/mssql_driver.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -31,14 +31,14 @@
 class CI_DB_mssql_driver extends CI_DB {
 
 	var $dbdriver = 'mssql';
-	
+
 	// The character used for escaping
 	var $_escape_char = '';
 
 	// clause and character used for LIKE escape sequences
 	var $_like_escape_str = " ESCAPE '%s' ";
 	var $_like_escape_chr = '!';
-	
+
 	/**
 	 * The syntax to count rows is slightly different across different
 	 * database engines, so this string appears in each driver and is
@@ -52,7 +52,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_connect()
 	{
 		if ($this->port != '')
@@ -62,7 +62,7 @@ class CI_DB_mssql_driver extends CI_DB {
 
 		return @mssql_connect($this->hostname, $this->username, $this->password);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -70,7 +70,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_pconnect()
 	{
 		if ($this->port != '')
@@ -80,9 +80,9 @@ class CI_DB_mssql_driver extends CI_DB {
 
 		return @mssql_pconnect($this->hostname, $this->username, $this->password);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Reconnect
 	 *
@@ -98,13 +98,13 @@ class CI_DB_mssql_driver extends CI_DB {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Select the database
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_select()
 	{
 		// Note: The brackets are required in the event that the DB name
@@ -113,7 +113,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set client character set
 	 *
@@ -129,20 +129,20 @@ class CI_DB_mssql_driver extends CI_DB {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Execute the query
 	 *
 	 * @access	private called by the base class
 	 * @param	string	an SQL query
 	 * @return	resource
-	 */	
+	 */
 	function _execute($sql)
 	{
 		$sql = $this->_prep_query($sql);
 		return @mssql_query($sql, $this->conn_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -153,7 +153,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	 * @access	private called by execute()
 	 * @param	string	an SQL query
 	 * @return	string
-	 */	
+	 */
 	function _prep_query($sql)
 	{
 		return $sql;
@@ -165,15 +165,15 @@ class CI_DB_mssql_driver extends CI_DB {
 	 * Begin Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_begin($test_mode = FALSE)
 	{
 		if ( ! $this->trans_enabled)
 		{
 			return TRUE;
 		}
-		
+
 		// When transactions are nested we only begin/commit/rollback the outermost ones
 		if ($this->_trans_depth > 0)
 		{
@@ -195,8 +195,8 @@ class CI_DB_mssql_driver extends CI_DB {
 	 * Commit Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_commit()
 	{
 		if ( ! $this->trans_enabled)
@@ -220,8 +220,8 @@ class CI_DB_mssql_driver extends CI_DB {
 	 * Rollback Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_rollback()
 	{
 		if ( ! $this->trans_enabled)
@@ -238,7 +238,7 @@ class CI_DB_mssql_driver extends CI_DB {
 		$this->simple_query('ROLLBACK TRAN');
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -254,19 +254,16 @@ class CI_DB_mssql_driver extends CI_DB {
 		if (is_array($str))
 		{
 			foreach($str as $key => $val)
-	   		{
+			{
 				$str[$key] = $this->escape_str($val, $like);
-	   		}
-   		
-	   		return $str;
-	   	}
-
-		// Access the CI object
-		$CI =& get_instance();
-		
+			}
+
+			return $str;
+		}
+
 		// Escape single quotes
-		$str = str_replace("'", "''", $CI->input->_remove_invisible_characters($str));
-		
+		$str = str_replace("'", "''", remove_invisible_characters($str));
+
 		// escape LIKE condition wildcards
 		if ($like === TRUE)
 		{
@@ -274,10 +271,10 @@ class CI_DB_mssql_driver extends CI_DB {
 								array($this->_like_escape_chr.'%', $this->_like_escape_chr.'_', $this->_like_escape_chr.$this->_like_escape_chr),
 								$str);
 		}
-		
+
 		return $str;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -290,7 +287,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	{
 		return @mssql_rows_affected($this->conn_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -315,7 +312,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	/**
 	* Parse major version
 	*
-	* Grabs the major version number from the 
+	* Grabs the major version number from the
 	* database server version string passed in.
 	*
 	* @access private
@@ -385,14 +382,14 @@ class CI_DB_mssql_driver extends CI_DB {
 	function _list_tables($prefix_limit = FALSE)
 	{
 		$sql = "SELECT name FROM sysobjects WHERE type = 'U' ORDER BY name";
-		
+
 		// for future compatibility
 		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
 		{
-			//$sql .= " LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_char);
+			//$sql .= " LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
 			return FALSE; // not currently supported
 		}
-		
+
 		return $sql;
 	}
 
@@ -409,7 +406,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	 */
 	function _list_columns($table = '')
 	{
-		return "SELECT * FROM INFORMATION_SCHEMA.Columns WHERE TABLE_NAME = '".$table."'";	
+		return "SELECT * FROM INFORMATION_SCHEMA.Columns WHERE TABLE_NAME = '".$table."'";
 	}
 
 	// --------------------------------------------------------------------
@@ -425,7 +422,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	 */
 	function _field_data($table)
 	{
-		return "SELECT TOP 1 * FROM ".$table;	
+		return "SELECT TOP 1 * FROM ".$table;
 	}
 
 	// --------------------------------------------------------------------
@@ -440,7 +437,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	{
 		return mssql_get_last_message();
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -477,26 +474,26 @@ class CI_DB_mssql_driver extends CI_DB {
 		{
 			if (strpos($item, '.'.$id) !== FALSE)
 			{
-				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);  
-				
+				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);
+
 				// remove duplicates if the user already included the escape
 				return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
-			}		
+			}
 		}
 
 		if (strpos($item, '.') !== FALSE)
 		{
-			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;			
+			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;
 		}
 		else
 		{
 			$str = $this->_escape_char.$item.$this->_escape_char;
 		}
-		
+
 		// remove duplicates if the user already included the escape
 		return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -515,12 +512,12 @@ class CI_DB_mssql_driver extends CI_DB {
 		{
 			$tables = array($tables);
 		}
-		
+
 		return implode(', ', $tables);
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Insert statement
 	 *
@@ -533,10 +530,10 @@ class CI_DB_mssql_driver extends CI_DB {
 	 * @return	string
 	 */
 	function _insert($table, $keys, $values)
-	{	
+	{
 		return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -558,21 +555,21 @@ class CI_DB_mssql_driver extends CI_DB {
 		{
 			$valstr[] = $key." = ".$val;
 		}
-		
+
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-		
+
 		$orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):'';
-	
+
 		$sql = "UPDATE ".$table." SET ".implode(', ', $valstr);
 
 		$sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : '';
 
 		$sql .= $orderby.$limit;
-		
+
 		return $sql;
 	}
 
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -585,12 +582,12 @@ class CI_DB_mssql_driver extends CI_DB {
 	 * @access	public
 	 * @param	string	the table name
 	 * @return	string
-	 */	
+	 */
 	function _truncate($table)
 	{
 		return "TRUNCATE ".$table;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -603,7 +600,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	 * @param	array	the where clause
 	 * @param	string	the limit clause
 	 * @return	string
-	 */	
+	 */
 	function _delete($table, $where = array(), $like = array(), $limit = FALSE)
 	{
 		$conditions = '';
@@ -621,7 +618,7 @@ class CI_DB_mssql_driver extends CI_DB {
 		}
 
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-	
+
 		return "DELETE FROM ".$table.$conditions.$limit;
 	}
 
@@ -641,8 +638,8 @@ class CI_DB_mssql_driver extends CI_DB {
 	function _limit($sql, $limit, $offset)
 	{
 		$i = $limit + $offset;
-	
-		return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$i.' ', $sql);		
+
+		return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$i.' ', $sql);
 	}
 
 	// --------------------------------------------------------------------
@@ -657,7 +654,7 @@ class CI_DB_mssql_driver extends CI_DB {
 	function _close($conn_id)
 	{
 		@mssql_close($conn_id);
-	}	
+	}
 
 }
 
diff --git a/system/database/drivers/mssql/mssql_forge.php b/system/database/drivers/mssql/mssql_forge.php
index f6a17811f..70b20ecf8 100644..100755
--- a/system/database/drivers/mssql/mssql_forge.php
+++ b/system/database/drivers/mssql/mssql_forge.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -79,12 +79,12 @@ class CI_DB_mssql_forge extends CI_DB_forge {
 	function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 	{
 		$sql = 'CREATE TABLE ';
-		
+
 		if ($if_not_exists === TRUE)
 		{
 			$sql .= 'IF NOT EXISTS ';
 		}
-		
+
 		$sql .= $this->db->_escape_identifiers($table)." (";
 		$current_field_count = 0;
 
@@ -100,41 +100,41 @@ class CI_DB_mssql_forge extends CI_DB_forge {
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
-				
+
 				$sql .= "\n\t".$this->db->_protect_identifiers($field);
-				
+
 				$sql .=  ' '.$attributes['TYPE'];
-	
+
 				if (array_key_exists('CONSTRAINT', $attributes))
 				{
 					$sql .= '('.$attributes['CONSTRAINT'].')';
 				}
-	
+
 				if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE)
 				{
 					$sql .= ' UNSIGNED';
 				}
-	
+
 				if (array_key_exists('DEFAULT', $attributes))
 				{
 					$sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
 				}
-	
+
 				if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE)
 				{
 					$sql .= ' NULL';
 				}
 				else
 				{
-					$sql .= ' NOT NULL';			
+					$sql .= ' NOT NULL';
 				}
-	
+
 				if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE)
 				{
 					$sql .= ' AUTO_INCREMENT';
 				}
 			}
-			
+
 			// don't add a comma on the end of the last field
 			if (++$current_field_count < count($fields))
 			{
@@ -147,24 +147,24 @@ class CI_DB_mssql_forge extends CI_DB_forge {
 			$primary_keys = $this->db->_protect_identifiers($primary_keys);
 			$sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")";
 		}
-		
+
 		if (is_array($keys) && count($keys) > 0)
 		{
 			foreach ($keys as $key)
 			{
 				if (is_array($key))
 				{
-					$key = $this->db->_protect_identifiers($key);	
+					$key = $this->db->_protect_identifiers($key);
 				}
 				else
 				{
 					$key = array($this->db->_protect_identifiers($key));
 				}
-				
+
 				$sql .= ",\n\tFOREIGN KEY (" . implode(', ', $key) . ")";
 			}
 		}
-		
+
 		$sql .= "\n)";
 
 		return $sql;
@@ -218,9 +218,9 @@ class CI_DB_mssql_forge extends CI_DB_forge {
 		{
 			$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
 		}
-		
+
 		return $sql;
-		
+
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/mssql/mssql_result.php b/system/database/drivers/mssql/mssql_result.php
index e7b338045..2897ca5a5 100644..100755
--- a/system/database/drivers/mssql/mssql_result.php
+++ b/system/database/drivers/mssql/mssql_result.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -25,7 +25,7 @@
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mssql_result extends CI_DB_result {
-	
+
 	/**
 	 * Number of rows in the result set
 	 *
@@ -36,7 +36,7 @@ class CI_DB_mssql_result extends CI_DB_result {
 	{
 		return @mssql_num_rows($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -67,7 +67,7 @@ class CI_DB_mssql_result extends CI_DB_result {
 		{
 			$field_names[] = $field->name;
 		}
-		
+
 		return $field_names;
 	}
 
@@ -85,17 +85,17 @@ class CI_DB_mssql_result extends CI_DB_result {
 	{
 		$retval = array();
 		while ($field = mssql_fetch_field($this->result_id))
-		{	
-			$F 				= new stdClass();
-			$F->name 		= $field->name;
-			$F->type 		= $field->type;
+		{
+			$F				= new stdClass();
+			$F->name		= $field->name;
+			$F->type		= $field->type;
 			$F->max_length	= $field->max_length;
 			$F->primary_key = 0;
 			$F->default		= '';
-			
+
 			$retval[] = $F;
 		}
-		
+
 		return $retval;
 	}
 
@@ -105,7 +105,7 @@ class CI_DB_mssql_result extends CI_DB_result {
 	 * Free the result
 	 *
 	 * @return	null
-	 */		
+	 */
 	function free_result()
 	{
 		if (is_resource($this->result_id))
@@ -131,7 +131,7 @@ class CI_DB_mssql_result extends CI_DB_result {
 	{
 		return mssql_data_seek($this->result_id, $n);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -146,7 +146,7 @@ class CI_DB_mssql_result extends CI_DB_result {
 	{
 		return mssql_fetch_assoc($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
diff --git a/system/database/drivers/mssql/mssql_utility.php b/system/database/drivers/mssql/mssql_utility.php
index da887b815..48ecbc72a 100644..100755
--- a/system/database/drivers/mssql/mssql_utility.php
+++ b/system/database/drivers/mssql/mssql_utility.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -52,7 +52,7 @@ class CI_DB_mssql_utility extends CI_DB_utility {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Repair table query
 	 *
@@ -82,42 +82,7 @@ class CI_DB_mssql_utility extends CI_DB_utility {
 		return $this->db->display_error('db_unsuported_feature');
 	}
 
-	/**
-	 *
-	 * The functions below have been deprecated as of 1.6, and are only here for backwards
-	 * compatibility.  They now reside in dbforge().  The use of dbutils for database manipulation
-	 * is STRONGLY discouraged in favour if using dbforge.
-	 *
-	 */
-
-	/**
-	 * Create database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _create_database($name)
-	{
-		return "CREATE DATABASE ".$name;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Drop database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _drop_database($name)
-	{
-		return "DROP DATABASE ".$name;
-	}
-
 }
 
-
 /* End of file mssql_utility.php */
 /* Location: ./system/database/drivers/mssql/mssql_utility.php */
\ No newline at end of file
diff --git a/system/database/drivers/mysql/index.html b/system/database/drivers/mysql/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/database/drivers/mysql/index.html
+++ b/system/database/drivers/mysql/index.html
diff --git a/system/database/drivers/mysql/mysql_driver.php b/system/database/drivers/mysql/mysql_driver.php
index 85a6ef4a0..df18c912e 100644..100755
--- a/system/database/drivers/mysql/mysql_driver.php
+++ b/system/database/drivers/mysql/mysql_driver.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -43,9 +43,9 @@ class CI_DB_mysql_driver extends CI_DB {
 	 * Whether to use the MySQL "delete hack" which allows the number
 	 * of affected rows to be shown. Uses a preg_replace when enabled,
 	 * adding a bit more processing to all queries.
-	 */	
+	 */
 	var $delete_hack = TRUE;
-	
+
 	/**
 	 * The syntax to count rows is slightly different across different
 	 * database engines, so this string appears in each driver and is
@@ -59,17 +59,17 @@ class CI_DB_mysql_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_connect()
 	{
 		if ($this->port != '')
 		{
 			$this->hostname .= ':'.$this->port;
 		}
-		
+
 		return @mysql_connect($this->hostname, $this->username, $this->password, TRUE);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -77,7 +77,7 @@ class CI_DB_mysql_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_pconnect()
 	{
 		if ($this->port != '')
@@ -87,7 +87,7 @@ class CI_DB_mysql_driver extends CI_DB {
 
 		return @mysql_pconnect($this->hostname, $this->username, $this->password);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -108,13 +108,13 @@ class CI_DB_mysql_driver extends CI_DB {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Select the database
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_select()
 	{
 		return @mysql_select_db($this->database, $this->conn_id);
@@ -136,7 +136,7 @@ class CI_DB_mysql_driver extends CI_DB {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Version number query string
 	 *
@@ -156,13 +156,13 @@ class CI_DB_mysql_driver extends CI_DB {
 	 * @access	private called by the base class
 	 * @param	string	an SQL query
 	 * @return	resource
-	 */	
+	 */
 	function _execute($sql)
 	{
 		$sql = $this->_prep_query($sql);
 		return @mysql_query($sql, $this->conn_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -173,7 +173,7 @@ class CI_DB_mysql_driver extends CI_DB {
 	 * @access	private called by execute()
 	 * @param	string	an SQL query
 	 * @return	string
-	 */	
+	 */
 	function _prep_query($sql)
 	{
 		// "DELETE FROM TABLE" returns 0 affected rows This hack modifies
@@ -185,7 +185,7 @@ class CI_DB_mysql_driver extends CI_DB {
 				$sql = preg_replace("/^\s*DELETE\s+FROM\s+(\S+)\s*$/", "DELETE FROM \\1 WHERE 1=1", $sql);
 			}
 		}
-		
+
 		return $sql;
 	}
 
@@ -195,15 +195,15 @@ class CI_DB_mysql_driver extends CI_DB {
 	 * Begin Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_begin($test_mode = FALSE)
 	{
 		if ( ! $this->trans_enabled)
 		{
 			return TRUE;
 		}
-		
+
 		// When transactions are nested we only begin/commit/rollback the outermost ones
 		if ($this->_trans_depth > 0)
 		{
@@ -214,7 +214,7 @@ class CI_DB_mysql_driver extends CI_DB {
 		// If the $test_mode flag is set to TRUE transactions will be rolled back
 		// even if the queries produce a successful result.
 		$this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE;
-		
+
 		$this->simple_query('SET AUTOCOMMIT=0');
 		$this->simple_query('START TRANSACTION'); // can also be BEGIN or BEGIN WORK
 		return TRUE;
@@ -226,8 +226,8 @@ class CI_DB_mysql_driver extends CI_DB {
 	 * Commit Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_commit()
 	{
 		if ( ! $this->trans_enabled)
@@ -252,8 +252,8 @@ class CI_DB_mysql_driver extends CI_DB {
 	 * Rollback Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_rollback()
 	{
 		if ( ! $this->trans_enabled)
@@ -271,7 +271,7 @@ class CI_DB_mysql_driver extends CI_DB {
 		$this->simple_query('SET AUTOCOMMIT=1');
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -282,17 +282,17 @@ class CI_DB_mysql_driver extends CI_DB {
 	 * @param	bool	whether or not the string will be used in a LIKE condition
 	 * @return	string
 	 */
-	function escape_str($str, $like = FALSE)	
-	{	
+	function escape_str($str, $like = FALSE)
+	{
 		if (is_array($str))
 		{
 			foreach($str as $key => $val)
-	   		{
+			{
 				$str[$key] = $this->escape_str($val, $like);
-	   		}
-   		
-	   		return $str;
-	   	}
+			}
+
+			return $str;
+		}
 
 		if (function_exists('mysql_real_escape_string') AND is_resource($this->conn_id))
 		{
@@ -306,16 +306,16 @@ class CI_DB_mysql_driver extends CI_DB {
 		{
 			$str = addslashes($str);
 		}
-		
+
 		// escape LIKE condition wildcards
 		if ($like === TRUE)
 		{
 			$str = str_replace(array('%', '_'), array('\\%', '\\_'), $str);
 		}
-		
+
 		return $str;
 	}
-		
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -328,7 +328,7 @@ class CI_DB_mysql_driver extends CI_DB {
 	{
 		return @mysql_affected_rows($this->conn_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -360,7 +360,7 @@ class CI_DB_mysql_driver extends CI_DB {
 		{
 			return 0;
 		}
-	
+
 		$query = $this->query($this->_count_string . $this->_protect_identifiers('numrows') . " FROM " . $this->_protect_identifiers($table, TRUE, NULL, FALSE));
 
 		if ($query->num_rows() == 0)
@@ -385,7 +385,7 @@ class CI_DB_mysql_driver extends CI_DB {
 	 */
 	function _list_tables($prefix_limit = FALSE)
 	{
-		$sql = "SHOW TABLES FROM ".$this->_escape_char.$this->database.$this->_escape_char;	
+		$sql = "SHOW TABLES FROM ".$this->_escape_char.$this->database.$this->_escape_char;
 
 		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
 		{
@@ -394,7 +394,7 @@ class CI_DB_mysql_driver extends CI_DB {
 
 		return $sql;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -408,7 +408,7 @@ class CI_DB_mysql_driver extends CI_DB {
 	 */
 	function _list_columns($table = '')
 	{
-		return "SHOW COLUMNS FROM ".$table;
+		return "SHOW COLUMNS FROM ".$this->_protect_identifiers($table, TRUE, NULL, FALSE);
 	}
 
 	// --------------------------------------------------------------------
@@ -439,7 +439,7 @@ class CI_DB_mysql_driver extends CI_DB {
 	{
 		return mysql_error($this->conn_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -475,26 +475,26 @@ class CI_DB_mysql_driver extends CI_DB {
 		{
 			if (strpos($item, '.'.$id) !== FALSE)
 			{
-				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);  
-				
+				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);
+
 				// remove duplicates if the user already included the escape
 				return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
-			}		
+			}
 		}
-		
+
 		if (strpos($item, '.') !== FALSE)
 		{
-			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;			
+			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;
 		}
 		else
 		{
 			$str = $this->_escape_char.$item.$this->_escape_char;
 		}
-	
+
 		// remove duplicates if the user already included the escape
 		return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
 	}
-			
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -513,12 +513,12 @@ class CI_DB_mysql_driver extends CI_DB {
 		{
 			$tables = array($tables);
 		}
-		
+
 		return '('.implode(', ', $tables).')';
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Insert statement
 	 *
@@ -531,12 +531,50 @@ class CI_DB_mysql_driver extends CI_DB {
 	 * @return	string
 	 */
 	function _insert($table, $keys, $values)
-	{	
+	{
 		return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
 	}
-	
+
 	// --------------------------------------------------------------------
 
+
+	/**
+	 * Replace statement
+	 *
+	 * Generates a platform-specific replace string from the supplied data
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @param	array	the insert keys
+	 * @param	array	the insert values
+	 * @return	string
+	 */
+	function _replace($table, $keys, $values)
+	{
+		return "REPLACE INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Insert_batch statement
+	 *
+	 * Generates a platform-specific insert string from the supplied data
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @param	array	the insert keys
+	 * @param	array	the insert values
+	 * @return	string
+	 */
+	function _insert_batch($table, $keys, $values)
+	{
+		return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES ".implode(', ', $values);
+	}
+
+	// --------------------------------------------------------------------
+
+
 	/**
 	 * Update statement
 	 *
@@ -556,22 +594,76 @@ class CI_DB_mysql_driver extends CI_DB {
 		{
 			$valstr[] = $key." = ".$val;
 		}
-		
+
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-		
+
 		$orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):'';
-	
+
 		$sql = "UPDATE ".$table." SET ".implode(', ', $valstr);
 
 		$sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : '';
 
 		$sql .= $orderby.$limit;
-		
+
+		return $sql;
+	}
+
+	// --------------------------------------------------------------------
+
+
+	/**
+	 * Update_Batch statement
+	 *
+	 * Generates a platform-specific batch update string from the supplied data
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @param	array	the update data
+	 * @param	array	the where clause
+	 * @return	string
+	 */
+	function _update_batch($table, $values, $index, $where = NULL)
+	{
+		$ids = array();
+		$where = ($where != '' AND count($where) >=1) ? implode(" ", $where).' AND ' : '';
+
+		foreach($values as $key => $val)
+		{
+			$ids[] = $val[$index];
+
+			foreach(array_keys($val) as $field)
+			{
+				if ($field != $index)
+				{
+					$final[$field][] =  'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field];
+				}
+			}
+		}
+
+		$sql = "UPDATE ".$table." SET ";
+		$cases = '';
+
+		foreach($final as $k => $v)
+		{
+			$cases .= $k.' = CASE '."\n";
+			foreach ($v as $row)
+			{
+				$cases .= $row."\n";
+			}
+
+			$cases .= 'ELSE '.$k.' END, ';
+		}
+
+		$sql .= substr($cases, 0, -2);
+
+		$sql .= ' WHERE '.$where.$index.' IN ('.implode(',', $ids).')';
+
 		return $sql;
 	}
 
 	// --------------------------------------------------------------------
 
+
 	/**
 	 * Truncate statement
 	 *
@@ -582,12 +674,12 @@ class CI_DB_mysql_driver extends CI_DB {
 	 * @access	public
 	 * @param	string	the table name
 	 * @return	string
-	 */	
+	 */
 	function _truncate($table)
 	{
 		return "TRUNCATE ".$table;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -600,7 +692,7 @@ class CI_DB_mysql_driver extends CI_DB {
 	 * @param	array	the where clause
 	 * @param	string	the limit clause
 	 * @return	string
-	 */	
+	 */
 	function _delete($table, $where = array(), $like = array(), $limit = FALSE)
 	{
 		$conditions = '';
@@ -618,7 +710,7 @@ class CI_DB_mysql_driver extends CI_DB {
 		}
 
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-	
+
 		return "DELETE FROM ".$table.$conditions.$limit;
 	}
 
@@ -636,7 +728,7 @@ class CI_DB_mysql_driver extends CI_DB {
 	 * @return	string
 	 */
 	function _limit($sql, $limit, $offset)
-	{	
+	{
 		if ($offset == 0)
 		{
 			$offset = '';
@@ -645,7 +737,7 @@ class CI_DB_mysql_driver extends CI_DB {
 		{
 			$offset .= ", ";
 		}
-		
+
 		return $sql."LIMIT ".$offset.$limit;
 	}
 
@@ -662,7 +754,7 @@ class CI_DB_mysql_driver extends CI_DB {
 	{
 		@mysql_close($conn_id);
 	}
-	
+
 }
 
 
diff --git a/system/database/drivers/mysql/mysql_forge.php b/system/database/drivers/mysql/mysql_forge.php
index ccacf99f8..529ec980d 100644..100755
--- a/system/database/drivers/mysql/mysql_forge.php
+++ b/system/database/drivers/mysql/mysql_forge.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -23,7 +23,7 @@
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysql_forge extends CI_DB_forge {
-	
+
 	/**
 	 * Create database
 	 *
@@ -76,52 +76,67 @@ class CI_DB_mysql_forge extends CI_DB_forge {
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
-				
+
 				$sql .= "\n\t".$this->db->_protect_identifiers($field);
 
 				if (array_key_exists('NAME', $attributes))
 				{
 					$sql .= ' '.$this->db->_protect_identifiers($attributes['NAME']).' ';
 				}
-				
+
 				if (array_key_exists('TYPE', $attributes))
 				{
 					$sql .=  ' '.$attributes['TYPE'];
+
+					if (array_key_exists('CONSTRAINT', $attributes))
+					{
+						switch ($attributes['TYPE'])
+						{
+							case 'decimal':
+							case 'float':
+							case 'numeric':
+								$sql .= '('.implode(',', $attributes['CONSTRAINT']).')';
+							break;
+
+							case 'enum':
+							case 'set':
+								$sql .= '("'.implode('","', $attributes['CONSTRAINT']).'")';
+							break;
+
+							default:
+								$sql .= '('.$attributes['CONSTRAINT'].')';
+						}
+					}
 				}
-	
-				if (array_key_exists('CONSTRAINT', $attributes))
-				{
-					$sql .= '('.$attributes['CONSTRAINT'].')';
-				}
-	
+
 				if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE)
 				{
 					$sql .= ' UNSIGNED';
 				}
-	
+
 				if (array_key_exists('DEFAULT', $attributes))
 				{
 					$sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
 				}
-	
+
 				if (array_key_exists('NULL', $attributes))
 				{
 					$sql .= ($attributes['NULL'] === TRUE) ? ' NULL' : ' NOT NULL';
 				}
-	
+
 				if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE)
 				{
 					$sql .= ' AUTO_INCREMENT';
 				}
 			}
-			
+
 			// don't add a comma on the end of the last field
 			if (++$current_field_count < count($fields))
 			{
 				$sql .= ',';
 			}
 		}
-		
+
 		return $sql;
 	}
 
@@ -141,12 +156,12 @@ class CI_DB_mysql_forge extends CI_DB_forge {
 	function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 	{
 		$sql = 'CREATE TABLE ';
-		
+
 		if ($if_not_exists === TRUE)
 		{
 			$sql .= 'IF NOT EXISTS ';
 		}
-		
+
 		$sql .= $this->db->_escape_identifiers($table)." (";
 
 		$sql .= $this->_process_fields($fields);
@@ -165,14 +180,14 @@ class CI_DB_mysql_forge extends CI_DB_forge {
 				if (is_array($key))
 				{
 					$key_name = $this->db->_protect_identifiers(implode('_', $key));
-					$key = $this->db->_protect_identifiers($key);	
+					$key = $this->db->_protect_identifiers($key);
 				}
 				else
 				{
 					$key_name = $this->db->_protect_identifiers($key);
 					$key = array($key_name);
 				}
-				
+
 				$sql .= ",\n\tKEY {$key_name} (" . implode(', ', $key) . ")";
 			}
 		}
@@ -226,7 +241,7 @@ class CI_DB_mysql_forge extends CI_DB_forge {
 		{
 			$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
 		}
-		
+
 		return $sql;
 	}
 
diff --git a/system/database/drivers/mysql/mysql_result.php b/system/database/drivers/mysql/mysql_result.php
index acc586626..507389603 100644..100755
--- a/system/database/drivers/mysql/mysql_result.php
+++ b/system/database/drivers/mysql/mysql_result.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -36,7 +36,7 @@ class CI_DB_mysql_result extends CI_DB_result {
 	{
 		return @mysql_num_rows($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -49,7 +49,7 @@ class CI_DB_mysql_result extends CI_DB_result {
 	{
 		return @mysql_num_fields($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -67,7 +67,7 @@ class CI_DB_mysql_result extends CI_DB_result {
 		{
 			$field_names[] = $field->name;
 		}
-		
+
 		return $field_names;
 	}
 
@@ -85,27 +85,27 @@ class CI_DB_mysql_result extends CI_DB_result {
 	{
 		$retval = array();
 		while ($field = mysql_fetch_field($this->result_id))
-		{	
+		{
 			$F				= new stdClass();
-			$F->name 		= $field->name;
-			$F->type 		= $field->type;
+			$F->name		= $field->name;
+			$F->type		= $field->type;
 			$F->default		= $field->def;
 			$F->max_length	= $field->max_length;
 			$F->primary_key = $field->primary_key;
-			
+
 			$retval[] = $F;
 		}
-		
+
 		return $retval;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
 	 * Free the result
 	 *
 	 * @return	null
-	 */		
+	 */
 	function free_result()
 	{
 		if (is_resource($this->result_id))
@@ -146,7 +146,7 @@ class CI_DB_mysql_result extends CI_DB_result {
 	{
 		return mysql_fetch_assoc($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -161,7 +161,7 @@ class CI_DB_mysql_result extends CI_DB_result {
 	{
 		return mysql_fetch_object($this->result_id);
 	}
-	
+
 }
 
 
diff --git a/system/database/drivers/mysql/mysql_utility.php b/system/database/drivers/mysql/mysql_utility.php
index 3277b0ff7..e9747c540 100644..100755
--- a/system/database/drivers/mysql/mysql_utility.php
+++ b/system/database/drivers/mysql/mysql_utility.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -84,7 +84,7 @@ class CI_DB_mysql_utility extends CI_DB_utility {
 
 		// Extract the prefs for simplicity
 		extract($params);
-	
+
 		// Build the output
 		$output = '';
 		foreach ((array)$tables as $table)
@@ -97,31 +97,31 @@ class CI_DB_mysql_utility extends CI_DB_utility {
 
 			// Get the table schema
 			$query = $this->db->query("SHOW CREATE TABLE `".$this->db->database.'`.'.$table);
-			
+
 			// No result means the table name was invalid
 			if ($query === FALSE)
 			{
 				continue;
 			}
-			
+
 			// Write out the table schema
 			$output .= '#'.$newline.'# TABLE STRUCTURE FOR: '.$table.$newline.'#'.$newline.$newline;
 
- 			if ($add_drop == TRUE)
- 			{
+			if ($add_drop == TRUE)
+			{
 				$output .= 'DROP TABLE IF EXISTS '.$table.';'.$newline.$newline;
 			}
-			
+
 			$i = 0;
 			$result = $query->result_array();
 			foreach ($result[0] as $val)
 			{
 				if ($i++ % 2)
-				{ 					
+				{
 					$output .= $val.';'.$newline.$newline;
 				}
 			}
-			
+
 			// If inserts are not needed we're done...
 			if ($add_insert == FALSE)
 			{
@@ -130,16 +130,16 @@ class CI_DB_mysql_utility extends CI_DB_utility {
 
 			// Grab all the data from the current table
 			$query = $this->db->query("SELECT * FROM $table");
-			
+
 			if ($query->num_rows() == 0)
 			{
 				continue;
 			}
-		
+
 			// Fetch the field names and determine if the field is an
 			// integer type.  We use this info to decide whether to
 			// surround the data with quotes or not
-			
+
 			$i = 0;
 			$field_str = '';
 			$is_int = array();
@@ -148,24 +148,24 @@ class CI_DB_mysql_utility extends CI_DB_utility {
 				// Most versions of MySQL store timestamp as a string
 				$is_int[$i] = (in_array(
 										strtolower(mysql_field_type($query->result_id, $i)),
-										array('tinyint', 'smallint', 'mediumint', 'int', 'bigint'), //, 'timestamp'), 
+										array('tinyint', 'smallint', 'mediumint', 'int', 'bigint'), //, 'timestamp'),
 										TRUE)
 										) ? TRUE : FALSE;
-										
+
 				// Create a string of field names
 				$field_str .= '`'.$field->name.'`, ';
 				$i++;
 			}
-			
+
 			// Trim off the end comma
 			$field_str = preg_replace( "/, $/" , "" , $field_str);
-			
-			
+
+
 			// Build the insert string
 			foreach ($query->result_array() as $row)
 			{
 				$val_str = '';
-			
+
 				$i = 0;
 				foreach ($row as $v)
 				{
@@ -184,61 +184,26 @@ class CI_DB_mysql_utility extends CI_DB_utility {
 						else
 						{
 							$val_str .= $v;
-						}					
-					}					
-					
+						}
+					}
+
 					// Append a comma
 					$val_str .= ', ';
 					$i++;
 				}
-				
+
 				// Remove the comma at the end of the string
 				$val_str = preg_replace( "/, $/" , "" , $val_str);
-								
+
 				// Build the INSERT string
 				$output .= 'INSERT INTO '.$table.' ('.$field_str.') VALUES ('.$val_str.');'.$newline;
 			}
-			
+
 			$output .= $newline.$newline;
 		}
 
 		return $output;
 	}
-
-	/**
-	 *
-	 * The functions below have been deprecated as of 1.6, and are only here for backwards
-	 * compatibility.  They now reside in dbforge().  The use of dbutils for database manipulation
-	 * is STRONGLY discouraged in favour if using dbforge.
-	 *
-	 */
-
-	/**
-	 * Create database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _create_database($name)
-	{
-		return "CREATE DATABASE ".$name;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Drop database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _drop_database($name)
-	{
-		return "DROP DATABASE ".$name;
-	}
-
 }
 
 /* End of file mysql_utility.php */
diff --git a/system/database/drivers/mysqli/index.html b/system/database/drivers/mysqli/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/database/drivers/mysqli/index.html
+++ b/system/database/drivers/mysqli/index.html
diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php
index 5d7200fbd..8942100d4 100644..100755
--- a/system/database/drivers/mysqli/mysqli_driver.php
+++ b/system/database/drivers/mysqli/mysqli_driver.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -31,7 +31,7 @@
 class CI_DB_mysqli_driver extends CI_DB {
 
 	var $dbdriver = 'mysqli';
-	
+
 	// The character used for escaping
 	var $_escape_char = '`';
 
@@ -51,7 +51,7 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 * Whether to use the MySQL "delete hack" which allows the number
 	 * of affected rows to be shown. Uses a preg_replace when enabled,
 	 * adding a bit more processing to all queries.
-	 */	
+	 */
 	var $delete_hack = TRUE;
 
 	// --------------------------------------------------------------------
@@ -61,12 +61,12 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_connect()
 	{
 		if ($this->port != '')
 		{
-			return @mysqli_connect($this->hostname, $this->username, $this->password, $this->database, $this->port);			
+			return @mysqli_connect($this->hostname, $this->username, $this->password, $this->database, $this->port);
 		}
 		else
 		{
@@ -82,12 +82,12 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_pconnect()
 	{
 		return $this->db_connect();
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -114,7 +114,7 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_select()
 	{
 		return @mysqli_select_db($this->conn_id, $this->database);
@@ -136,7 +136,7 @@ class CI_DB_mysqli_driver extends CI_DB {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Version number query string
 	 *
@@ -156,14 +156,14 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 * @access	private called by the base class
 	 * @param	string	an SQL query
 	 * @return	resource
-	 */	
+	 */
 	function _execute($sql)
 	{
-		$sql = $this->_prep_query($sql);	
+		$sql = $this->_prep_query($sql);
 		$result = @mysqli_query($this->conn_id, $sql);
 		return $result;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -174,7 +174,7 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 * @access	private called by execute()
 	 * @param	string	an SQL query
 	 * @return	string
-	 */	
+	 */
 	function _prep_query($sql)
 	{
 		// "DELETE FROM TABLE" returns 0 affected rows This hack modifies
@@ -186,7 +186,7 @@ class CI_DB_mysqli_driver extends CI_DB {
 				$sql = preg_replace("/^\s*DELETE\s+FROM\s+(\S+)\s*$/", "DELETE FROM \\1 WHERE 1=1", $sql);
 			}
 		}
-		
+
 		return $sql;
 	}
 
@@ -196,15 +196,15 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 * Begin Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_begin($test_mode = FALSE)
 	{
 		if ( ! $this->trans_enabled)
 		{
 			return TRUE;
 		}
-		
+
 		// When transactions are nested we only begin/commit/rollback the outermost ones
 		if ($this->_trans_depth > 0)
 		{
@@ -227,8 +227,8 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 * Commit Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_commit()
 	{
 		if ( ! $this->trans_enabled)
@@ -253,8 +253,8 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 * Rollback Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_rollback()
 	{
 		if ( ! $this->trans_enabled)
@@ -283,17 +283,17 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 * @param	bool	whether or not the string will be used in a LIKE condition
 	 * @return	string
 	 */
-	function escape_str($str, $like = FALSE)	
+	function escape_str($str, $like = FALSE)
 	{
 		if (is_array($str))
 		{
 			foreach($str as $key => $val)
-	   		{
+			{
 				$str[$key] = $this->escape_str($val, $like);
-	   		}
-   		
-	   		return $str;
-	   	}
+			}
+
+			return $str;
+		}
 
 		if (function_exists('mysqli_real_escape_string') AND is_object($this->conn_id))
 		{
@@ -307,16 +307,16 @@ class CI_DB_mysqli_driver extends CI_DB {
 		{
 			$str = addslashes($str);
 		}
-		
+
 		// escape LIKE condition wildcards
 		if ($like === TRUE)
 		{
 			$str = str_replace(array('%', '_'), array('\\%', '\\_'), $str);
 		}
-		
+
 		return $str;
 	}
-		
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -329,7 +329,7 @@ class CI_DB_mysqli_driver extends CI_DB {
 	{
 		return @mysqli_affected_rows($this->conn_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -386,13 +386,13 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 */
 	function _list_tables($prefix_limit = FALSE)
 	{
-		$sql = "SHOW TABLES FROM ".$this->_escape_char.$this->database.$this->_escape_char;	
-		
+		$sql = "SHOW TABLES FROM ".$this->_escape_char.$this->database.$this->_escape_char;
+
 		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
 		{
 			$sql .= " LIKE '".$this->escape_like_str($this->dbprefix)."%'";
 		}
-		
+
 		return $sql;
 	}
 
@@ -409,7 +409,7 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 */
 	function _list_columns($table = '')
 	{
-		return "SHOW COLUMNS FROM ".$table;
+		return "SHOW COLUMNS FROM ".$this->_protect_identifiers($table, TRUE, NULL, FALSE);
 	}
 
 	// --------------------------------------------------------------------
@@ -440,7 +440,7 @@ class CI_DB_mysqli_driver extends CI_DB {
 	{
 		return mysqli_error($this->conn_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -471,31 +471,31 @@ class CI_DB_mysqli_driver extends CI_DB {
 		{
 			return $item;
 		}
-		
+
 		foreach ($this->_reserved_identifiers as $id)
 		{
 			if (strpos($item, '.'.$id) !== FALSE)
 			{
-				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);  
-				
+				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);
+
 				// remove duplicates if the user already included the escape
 				return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
-			}		
+			}
 		}
-		
+
 		if (strpos($item, '.') !== FALSE)
 		{
-			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;			
+			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;
 		}
 		else
 		{
 			$str = $this->_escape_char.$item.$this->_escape_char;
 		}
-		
+
 		// remove duplicates if the user already included the escape
 		return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
 	}
-			
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -514,12 +514,12 @@ class CI_DB_mysqli_driver extends CI_DB {
 		{
 			$tables = array($tables);
 		}
-		
+
 		return '('.implode(', ', $tables).')';
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Insert statement
 	 *
@@ -532,9 +532,27 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 * @return	string
 	 */
 	function _insert($table, $keys, $values)
-	{	
+	{
 		return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
 	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Insert_batch statement
+	 *
+	 * Generates a platform-specific insert string from the supplied data
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @param	array	the insert keys
+	 * @param	array	the insert values
+	 * @return	string
+	 */
+	function _insert_batch($table, $keys, $values)
+	{
+		return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES ".implode(', ', $values);
+	}
 	
 	// --------------------------------------------------------------------
 
@@ -557,21 +575,72 @@ class CI_DB_mysqli_driver extends CI_DB {
 		{
 			$valstr[] = $key." = ".$val;
 		}
-		
+
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-		
+
 		$orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):'';
-	
+
 		$sql = "UPDATE ".$table." SET ".implode(', ', $valstr);
-		
+
 		$sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : '';
-		
+
 		$sql .= $orderby.$limit;
-		
+
+		return $sql;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Update_Batch statement
+	 *
+	 * Generates a platform-specific batch update string from the supplied data
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @param	array	the update data
+	 * @param	array	the where clause
+	 * @return	string
+	 */
+	function _update_batch($table, $values, $index, $where = NULL)
+	{
+		$ids = array();
+		$where = ($where != '' AND count($where) >=1) ? implode(" ", $where).' AND ' : '';
+
+		foreach($values as $key => $val)
+		{
+			$ids[] = $val[$index];
+
+			foreach(array_keys($val) as $field)
+			{
+				if ($field != $index)
+				{
+					$final[$field][] =  'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field];
+				}
+			}
+		}
+
+		$sql = "UPDATE ".$table." SET ";
+		$cases = '';
+
+		foreach($final as $k => $v)
+		{
+			$cases .= $k.' = CASE '."\n";
+			foreach ($v as $row)
+			{
+				$cases .= $row."\n";
+			}
+
+			$cases .= 'ELSE '.$k.' END, ';
+		}
+
+		$sql .= substr($cases, 0, -2);
+
+		$sql .= ' WHERE '.$where.$index.' IN ('.implode(',', $ids).')';
+
 		return $sql;
 	}
 
-	
 	// --------------------------------------------------------------------
 
 	/**
@@ -584,12 +653,12 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 * @access	public
 	 * @param	string	the table name
 	 * @return	string
-	 */	
+	 */
 	function _truncate($table)
 	{
 		return "TRUNCATE ".$table;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -602,7 +671,7 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 * @param	array	the where clause
 	 * @param	string	the limit clause
 	 * @return	string
-	 */	
+	 */
 	function _delete($table, $where = array(), $like = array(), $limit = FALSE)
 	{
 		$conditions = '';
@@ -620,7 +689,7 @@ class CI_DB_mysqli_driver extends CI_DB {
 		}
 
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-	
+
 		return "DELETE FROM ".$table.$conditions.$limit;
 	}
 
@@ -638,14 +707,14 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 * @return	string
 	 */
 	function _limit($sql, $limit, $offset)
-	{	
+	{
 		$sql .= "LIMIT ".$limit;
-	
+
 		if ($offset > 0)
 		{
 			$sql .= " OFFSET ".$offset;
 		}
-		
+
 		return $sql;
 	}
 
diff --git a/system/database/drivers/mysqli/mysqli_forge.php b/system/database/drivers/mysqli/mysqli_forge.php
index 262d491ed..d5097335e 100644..100755
--- a/system/database/drivers/mysqli/mysqli_forge.php
+++ b/system/database/drivers/mysqli/mysqli_forge.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -23,7 +23,7 @@
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysqli_forge extends CI_DB_forge {
-	
+
 	/**
 	 * Create database
 	 *
@@ -76,52 +76,52 @@ class CI_DB_mysqli_forge extends CI_DB_forge {
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
-				
+
 				$sql .= "\n\t".$this->db->_protect_identifiers($field);
 
 				if (array_key_exists('NAME', $attributes))
 				{
 					$sql .= ' '.$this->db->_protect_identifiers($attributes['NAME']).' ';
 				}
-				
+
 				if (array_key_exists('TYPE', $attributes))
 				{
 					$sql .=  ' '.$attributes['TYPE'];
 				}
-	
+
 				if (array_key_exists('CONSTRAINT', $attributes))
 				{
 					$sql .= '('.$attributes['CONSTRAINT'].')';
 				}
-	
+
 				if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE)
 				{
 					$sql .= ' UNSIGNED';
 				}
-	
+
 				if (array_key_exists('DEFAULT', $attributes))
 				{
 					$sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
 				}
-	
+
 				if (array_key_exists('NULL', $attributes))
 				{
 					$sql .= ($attributes['NULL'] === TRUE) ? ' NULL' : ' NOT NULL';
 				}
-	
+
 				if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE)
 				{
 					$sql .= ' AUTO_INCREMENT';
 				}
 			}
-			
+
 			// don't add a comma on the end of the last field
 			if (++$current_field_count < count($fields))
 			{
 				$sql .= ',';
 			}
 		}
-		
+
 		return $sql;
 	}
 
@@ -141,12 +141,12 @@ class CI_DB_mysqli_forge extends CI_DB_forge {
 	function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 	{
 		$sql = 'CREATE TABLE ';
-		
+
 		if ($if_not_exists === TRUE)
 		{
 			$sql .= 'IF NOT EXISTS ';
 		}
-		
+
 		$sql .= $this->db->_escape_identifiers($table)." (";
 
 		$sql .= $this->_process_fields($fields);
@@ -165,14 +165,14 @@ class CI_DB_mysqli_forge extends CI_DB_forge {
 				if (is_array($key))
 				{
 					$key_name = $this->db->_protect_identifiers(implode('_', $key));
-					$key = $this->db->_protect_identifiers($key);	
+					$key = $this->db->_protect_identifiers($key);
 				}
 				else
 				{
 					$key_name = $this->db->_protect_identifiers($key);
 					$key = array($key_name);
 				}
-				
+
 				$sql .= ",\n\tKEY {$key_name} (" . implode(', ', $key) . ")";
 			}
 		}
@@ -226,7 +226,7 @@ class CI_DB_mysqli_forge extends CI_DB_forge {
 		{
 			$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
 		}
-		
+
 		return $sql;
 	}
 
diff --git a/system/database/drivers/mysqli/mysqli_result.php b/system/database/drivers/mysqli/mysqli_result.php
index 81d22cc9c..c4d8f5d58 100644..100755
--- a/system/database/drivers/mysqli/mysqli_result.php
+++ b/system/database/drivers/mysqli/mysqli_result.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -25,7 +25,7 @@
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysqli_result extends CI_DB_result {
-	
+
 	/**
 	 * Number of rows in the result set
 	 *
@@ -36,7 +36,7 @@ class CI_DB_mysqli_result extends CI_DB_result {
 	{
 		return @mysqli_num_rows($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -67,7 +67,7 @@ class CI_DB_mysqli_result extends CI_DB_result {
 		{
 			$field_names[] = $field->name;
 		}
-		
+
 		return $field_names;
 	}
 
@@ -85,17 +85,17 @@ class CI_DB_mysqli_result extends CI_DB_result {
 	{
 		$retval = array();
 		while ($field = mysqli_fetch_field($this->result_id))
-		{	
-			$F 				= new stdClass();
-			$F->name 		= $field->name;
-			$F->type 		= $field->type;
+		{
+			$F				= new stdClass();
+			$F->name		= $field->name;
+			$F->type		= $field->type;
 			$F->default		= $field->def;
 			$F->max_length	= $field->max_length;
 			$F->primary_key = ($field->flags & MYSQLI_PRI_KEY_FLAG) ? 1 : 0;
-			
+
 			$retval[] = $F;
 		}
-		
+
 		return $retval;
 	}
 
@@ -105,7 +105,7 @@ class CI_DB_mysqli_result extends CI_DB_result {
 	 * Free the result
 	 *
 	 * @return	null
-	 */		
+	 */
 	function free_result()
 	{
 		if (is_object($this->result_id))
@@ -146,7 +146,7 @@ class CI_DB_mysqli_result extends CI_DB_result {
 	{
 		return mysqli_fetch_assoc($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -161,7 +161,7 @@ class CI_DB_mysqli_result extends CI_DB_result {
 	{
 		return mysqli_fetch_object($this->result_id);
 	}
-	
+
 }
 
 
diff --git a/system/database/drivers/mysqli/mysqli_utility.php b/system/database/drivers/mysqli/mysqli_utility.php
index 44fd0f7aa..e17889b8c 100644..100755
--- a/system/database/drivers/mysqli/mysqli_utility.php
+++ b/system/database/drivers/mysqli/mysqli_utility.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -23,7 +23,7 @@
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysqli_utility extends CI_DB_utility {
-	
+
 	/**
 	 * List databases
 	 *
@@ -34,7 +34,7 @@ class CI_DB_mysqli_utility extends CI_DB_utility {
 	{
 		return "SHOW DATABASES";
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -81,42 +81,6 @@ class CI_DB_mysqli_utility extends CI_DB_utility {
 		// Currently unsupported
 		return $this->db->display_error('db_unsuported_feature');
 	}
-
-
-	/**
-	 *
-	 * The functions below have been deprecated as of 1.6, and are only here for backwards
-	 * compatibility.  They now reside in dbforge().  The use of dbutils for database manipulation
-	 * is STRONGLY discouraged in favour if using dbforge.
-	 *
-	 */
-
-	/**
-	 * Create database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _create_database($name)
-	{
-		return "CREATE DATABASE ".$name;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Drop database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _drop_database($name)
-	{
-		return "DROP DATABASE ".$name;
-	}
-
 }
 
 /* End of file mysqli_utility.php */
diff --git a/system/database/drivers/oci8/index.html b/system/database/drivers/oci8/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/database/drivers/oci8/index.html
+++ b/system/database/drivers/oci8/index.html
diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index 758192358..64f53cc3f 100644..100755
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -2,14 +2,14 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
- * @package	 	CodeIgniter
- * @author	  	ExpressionEngine Dev Team
- * @copyright   Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license	 	http://codeigniter.com/user_guide/license.html
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
- * @since	   	Version 1.0
+ * @since		Version 1.0
  * @filesource
  */
 
@@ -22,10 +22,10 @@
  * creates dynamically based on whether the active record
  * class is being used or not.
  *
- * @package	 	CodeIgniter
+ * @package		CodeIgniter
  * @subpackage  Drivers
  * @category	Database
- * @author	  	ExpressionEngine Dev Team
+ * @author		ExpressionEngine Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 
@@ -44,14 +44,14 @@
 class CI_DB_oci8_driver extends CI_DB {
 
 	var $dbdriver = 'oci8';
-	
+
 	// The character used for excaping
 	var $_escape_char = '"';
-	
+
 	// clause and character used for LIKE escape sequences
 	var $_like_escape_str = " escape '%s' ";
 	var $_like_escape_chr = '!';
-	
+
 	/**
 	 * The syntax to count rows is slightly different across different
 	 * database engines, so this string appears in each driver and is
@@ -141,7 +141,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Version number query string
 	 *
@@ -248,7 +248,7 @@ class CI_DB_oci8_driver extends CI_DB {
 			}
 			return FALSE;
 		}
-		
+
 		// build the query string
 		$sql = "begin $package.$procedure(";
 
@@ -256,20 +256,20 @@ class CI_DB_oci8_driver extends CI_DB {
 		foreach($params as $param)
 		{
 			$sql .= $param['name'] . ",";
-			
+
 			if (array_key_exists('type', $param) && ($param['type'] == OCI_B_CURSOR))
 			{
 				$have_cursor = TRUE;
 			}
 		}
 		$sql = trim($sql, ",") . "); end;";
-				
+
 		$this->stmt_id = FALSE;
 		$this->_set_stmt_id($sql);
 		$this->_bind_params($params);
 		$this->query($sql, FALSE, $have_cursor);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -284,10 +284,10 @@ class CI_DB_oci8_driver extends CI_DB {
 		{
 			return;
 		}
-		
+
 		foreach ($params as $param)
 		{
- 			foreach (array('name', 'value', 'type', 'length') as $val)
+			foreach (array('name', 'value', 'type', 'length') as $val)
 			{
 				if ( ! isset($param[$val]))
 				{
@@ -305,26 +305,26 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * Begin Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_begin($test_mode = FALSE)
 	{
 		if ( ! $this->trans_enabled)
 		{
 			return TRUE;
 		}
-		
+
 		// When transactions are nested we only begin/commit/rollback the outermost ones
 		if ($this->_trans_depth > 0)
 		{
 			return TRUE;
 		}
-		
+
 		// Reset the transaction failure flag.
 		// If the $test_mode flag is set to TRUE transactions will be rolled back
 		// even if the queries produce a successful result.
 		$this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE;
-		
+
 		$this->_commit = OCI_DEFAULT;
 		return TRUE;
 	}
@@ -335,8 +335,8 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * Commit Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_commit()
 	{
 		if ( ! $this->trans_enabled)
@@ -361,8 +361,8 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * Rollback Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_rollback()
 	{
 		if ( ! $this->trans_enabled)
@@ -396,18 +396,15 @@ class CI_DB_oci8_driver extends CI_DB {
 		if (is_array($str))
 		{
 			foreach($str as $key => $val)
-	   		{
+			{
 				$str[$key] = $this->escape_str($val, $like);
-	   		}
-   		
-	   		return $str;
-	   	}
+			}
+
+			return $str;
+		}
 
-		// Access the CI object
-		$CI =& get_instance();
+		$str = remove_invisible_characters($str);
 
-		$str = $CI->input->_remove_invisible_characters($str);
-		
 		// escape LIKE condition wildcards
 		if ($like === TRUE)
 		{
@@ -415,7 +412,7 @@ class CI_DB_oci8_driver extends CI_DB {
 								array($this->_like_escape_chr.'%', $this->_like_escape_chr.'_', $this->_like_escape_chr.$this->_like_escape_chr),
 								$str);
 		}
-		
+
 		return $str;
 	}
 
@@ -493,9 +490,9 @@ class CI_DB_oci8_driver extends CI_DB {
 
 		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
 		{
-			$sql .= " WHERE TABLE_NAME LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_char);
+			$sql .= " WHERE TABLE_NAME LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
 		}
-		
+
 		return $sql;
 	}
 
@@ -558,7 +555,7 @@ class CI_DB_oci8_driver extends CI_DB {
 		$error = ocierror($this->conn_id);
 		return $error['code'];
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -581,26 +578,26 @@ class CI_DB_oci8_driver extends CI_DB {
 		{
 			if (strpos($item, '.'.$id) !== FALSE)
 			{
-				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);  
-				
+				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);
+
 				// remove duplicates if the user already included the escape
 				return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
-			}		
+			}
 		}
-	
+
 		if (strpos($item, '.') !== FALSE)
 		{
-			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;			
+			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;
 		}
 		else
 		{
 			$str = $this->_escape_char.$item.$this->_escape_char;
 		}
-		
+
 		// remove duplicates if the user already included the escape
 		return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -619,12 +616,12 @@ class CI_DB_oci8_driver extends CI_DB {
 		{
 			$tables = array($tables);
 		}
-		
+
 		return implode(', ', $tables);
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Insert statement
 	 *
@@ -662,17 +659,17 @@ class CI_DB_oci8_driver extends CI_DB {
 		{
 			$valstr[] = $key." = ".$val;
 		}
-		
+
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-		
+
 		$orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):'';
-	
+
 		$sql = "UPDATE ".$table." SET ".implode(', ', $valstr);
 
 		$sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : '';
 
 		$sql .= $orderby.$limit;
-		
+
 		return $sql;
 	}
 
@@ -688,12 +685,12 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access	public
 	 * @param	string	the table name
 	 * @return	string
-	 */	
+	 */
 	function _truncate($table)
 	{
 		return "TRUNCATE TABLE ".$table;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -706,7 +703,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @param	array	the where clause
 	 * @param	string	the limit clause
 	 * @return	string
-	 */	
+	 */
 	function _delete($table, $where = array(), $like = array(), $limit = FALSE)
 	{
 		$conditions = '';
@@ -724,7 +721,7 @@ class CI_DB_oci8_driver extends CI_DB {
 		}
 
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-	
+
 		return "DELETE FROM ".$table.$conditions.$limit;
 	}
 
@@ -755,7 +752,7 @@ class CI_DB_oci8_driver extends CI_DB {
 		$this->limit_used = TRUE;
 
 		return $newsql;
-	}	
+	}
 
 	// --------------------------------------------------------------------
 
diff --git a/system/database/drivers/oci8/oci8_forge.php b/system/database/drivers/oci8/oci8_forge.php
index d77ed8de6..3cd17585a 100644..100755
--- a/system/database/drivers/oci8/oci8_forge.php
+++ b/system/database/drivers/oci8/oci8_forge.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -66,12 +66,12 @@ class CI_DB_oci8_forge extends CI_DB_forge {
 	function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 	{
 		$sql = 'CREATE TABLE ';
-		
+
 		if ($if_not_exists === TRUE)
 		{
 			$sql .= 'IF NOT EXISTS ';
 		}
-		
+
 		$sql .= $this->db->_escape_identifiers($table)." (";
 		$current_field_count = 0;
 
@@ -87,41 +87,41 @@ class CI_DB_oci8_forge extends CI_DB_forge {
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
-				
+
 				$sql .= "\n\t".$this->db->_protect_identifiers($field);
-				
+
 				$sql .=  ' '.$attributes['TYPE'];
-	
+
 				if (array_key_exists('CONSTRAINT', $attributes))
 				{
 					$sql .= '('.$attributes['CONSTRAINT'].')';
 				}
-	
+
 				if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE)
 				{
 					$sql .= ' UNSIGNED';
 				}
-	
+
 				if (array_key_exists('DEFAULT', $attributes))
 				{
 					$sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
 				}
-	
+
 				if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE)
 				{
 					$sql .= ' NULL';
 				}
 				else
 				{
-					$sql .= ' NOT NULL';			
+					$sql .= ' NOT NULL';
 				}
-	
+
 				if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE)
 				{
 					$sql .= ' AUTO_INCREMENT';
 				}
 			}
-			
+
 			// don't add a comma on the end of the last field
 			if (++$current_field_count < count($fields))
 			{
@@ -141,17 +141,17 @@ class CI_DB_oci8_forge extends CI_DB_forge {
 			{
 				if (is_array($key))
 				{
-					$key = $this->db->_protect_identifiers($key);	
+					$key = $this->db->_protect_identifiers($key);
 				}
 				else
 				{
 					$key = array($this->db->_protect_identifiers($key));
 				}
-				
+
 				$sql .= ",\n\tUNIQUE COLUMNS (" . implode(', ', $key) . ")";
 			}
 		}
-		
+
 		$sql .= "\n)";
 
 		return $sql;
@@ -218,9 +218,9 @@ class CI_DB_oci8_forge extends CI_DB_forge {
 		{
 			$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
 		}
-		
+
 		return $sql;
-		
+
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/oci8/oci8_result.php b/system/database/drivers/oci8/oci8_result.php
index cab538e21..88531b436 100644..100755
--- a/system/database/drivers/oci8/oci8_result.php
+++ b/system/database/drivers/oci8/oci8_result.php
@@ -2,14 +2,14 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
- * @package	 	CodeIgniter
- * @author	 	ExpressionEngine Dev Team
- * @copyright   Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license	 	http://codeigniter.com/user_guide/license.html
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
- * @since	   	Version 1.0
+ * @since		Version 1.0
  * @filesource
  */
 
@@ -21,7 +21,7 @@
  * This class extends the parent result class: CI_DB_result
  *
  * @category	Database
- * @author	 	ExpressionEngine Dev Team
+ * @author		ExpressionEngine Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_oci8_result extends CI_DB_result {
@@ -35,7 +35,7 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 *
 	 * Oracle doesn't have a graceful way to retun the number of rows
 	 * so we have to use what amounts to a hack.
-	 * 
+	 *
 	 *
 	 * @access  public
 	 * @return  integer
@@ -111,7 +111,7 @@ class CI_DB_oci8_result extends CI_DB_result {
 		$fieldCount = $this->num_fields();
 		for ($c = 1; $c <= $fieldCount; $c++)
 		{
-			$F			  = new stdClass();
+			$F				= new stdClass();
 			$F->name		= ocicolumnname($this->stmt_id, $c);
 			$F->type		= ocicolumntype($this->stmt_id, $c);
 			$F->max_length  = ocicolumnsize($this->stmt_id, $c);
@@ -128,12 +128,12 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 * Free the result
 	 *
 	 * @return	null
-	 */		
+	 */
 	function free_result()
 	{
 		if (is_resource($this->result_id))
 		{
-			ocifreestatement($this->result_id);			
+			ocifreestatement($this->result_id);
 			$this->result_id = FALSE;
 		}
 	}
@@ -151,8 +151,8 @@ class CI_DB_oci8_result extends CI_DB_result {
 	function _fetch_assoc(&$row)
 	{
 		$id = ($this->curs_id) ? $this->curs_id : $this->stmt_id;
-	
-		return ocifetchinto($id, $row, OCI_ASSOC + OCI_RETURN_NULLS);	
+
+		return ocifetchinto($id, $row, OCI_ASSOC + OCI_RETURN_NULLS);
 	}
 
 	// --------------------------------------------------------------------
@@ -166,17 +166,17 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 * @return  object
 	 */
 	function _fetch_object()
-	{	
+	{
 		$result = array();
 
 		// If PHP 5 is being used we can fetch an result object
 		if (function_exists('oci_fetch_object'))
 		{
 			$id = ($this->curs_id) ? $this->curs_id : $this->stmt_id;
-			
+
 			return @oci_fetch_object($id);
 		}
-		
+
 		// If PHP 4 is being used we have to build our own result
 		foreach ($this->result_array() as $key => $val)
 		{
@@ -192,7 +192,7 @@ class CI_DB_oci8_result extends CI_DB_result {
 			{
 				$obj->$key = $val;
 			}
-			
+
 			$result[] = $obj;
 		}
 
diff --git a/system/database/drivers/oci8/oci8_utility.php b/system/database/drivers/oci8/oci8_utility.php
index 74670eaab..854b467e1 100644..100755
--- a/system/database/drivers/oci8/oci8_utility.php
+++ b/system/database/drivers/oci8/oci8_utility.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -81,41 +81,6 @@ class CI_DB_oci8_utility extends CI_DB_utility {
 		// Currently unsupported
 		return $this->db->display_error('db_unsuported_feature');
 	}
-
-	/**
-	 *
-	 * The functions below have been deprecated as of 1.6, and are only here for backwards
-	 * compatibility.  They now reside in dbforge().  The use of dbutils for database manipulation
-	 * is STRONGLY discouraged in favour if using dbforge.
-	 *
-	 */
-
-	/**
-	 * Create database
-	 *
-	 * @access	public
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _create_database($name)
-	{
-		return FALSE;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Drop database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _drop_database($name)
-	{
-		return FALSE;
-	}
-
 }
 
 /* End of file oci8_utility.php */
diff --git a/system/database/drivers/odbc/index.html b/system/database/drivers/odbc/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/database/drivers/odbc/index.html
+++ b/system/database/drivers/odbc/index.html
diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php
index 6cb3080d4..c8e03c356 100644..100755
--- a/system/database/drivers/odbc/odbc_driver.php
+++ b/system/database/drivers/odbc/odbc_driver.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -31,14 +31,14 @@
 class CI_DB_odbc_driver extends CI_DB {
 
 	var $dbdriver = 'odbc';
-	
+
 	// the character used to excape - not necessary for ODBC
 	var $_escape_char = '';
-	
+
 	// clause and character used for LIKE escape sequences
 	var $_like_escape_str = " {escape '%s'} ";
 	var $_like_escape_chr = '!';
-	
+
 	/**
 	 * The syntax to count rows is slightly different across different
 	 * database engines, so this string appears in each driver and is
@@ -51,7 +51,7 @@ class CI_DB_odbc_driver extends CI_DB {
 	function CI_DB_odbc_driver($params)
 	{
 		parent::CI_DB($params);
-		
+
 		$this->_random_keyword = ' RND('.time().')'; // database specific random keyword
 	}
 
@@ -60,12 +60,12 @@ class CI_DB_odbc_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_connect()
 	{
 		return @odbc_connect($this->hostname, $this->username, $this->password);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -73,12 +73,12 @@ class CI_DB_odbc_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_pconnect()
 	{
 		return @odbc_pconnect($this->hostname, $this->username, $this->password);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -102,7 +102,7 @@ class CI_DB_odbc_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_select()
 	{
 		// Not needed for ODBC
@@ -126,7 +126,7 @@ class CI_DB_odbc_driver extends CI_DB {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Version number query string
 	 *
@@ -146,13 +146,13 @@ class CI_DB_odbc_driver extends CI_DB {
 	 * @access	private called by the base class
 	 * @param	string	an SQL query
 	 * @return	resource
-	 */	
+	 */
 	function _execute($sql)
 	{
 		$sql = $this->_prep_query($sql);
 		return @odbc_exec($this->conn_id, $sql);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -163,7 +163,7 @@ class CI_DB_odbc_driver extends CI_DB {
 	 * @access	private called by execute()
 	 * @param	string	an SQL query
 	 * @return	string
-	 */	
+	 */
 	function _prep_query($sql)
 	{
 		return $sql;
@@ -175,15 +175,15 @@ class CI_DB_odbc_driver extends CI_DB {
 	 * Begin Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_begin($test_mode = FALSE)
 	{
 		if ( ! $this->trans_enabled)
 		{
 			return TRUE;
 		}
-		
+
 		// When transactions are nested we only begin/commit/rollback the outermost ones
 		if ($this->_trans_depth > 0)
 		{
@@ -204,8 +204,8 @@ class CI_DB_odbc_driver extends CI_DB {
 	 * Commit Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_commit()
 	{
 		if ( ! $this->trans_enabled)
@@ -230,8 +230,8 @@ class CI_DB_odbc_driver extends CI_DB {
 	 * Rollback Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_rollback()
 	{
 		if ( ! $this->trans_enabled)
@@ -265,19 +265,16 @@ class CI_DB_odbc_driver extends CI_DB {
 		if (is_array($str))
 		{
 			foreach($str as $key => $val)
-	   		{
+			{
 				$str[$key] = $this->escape_str($val, $like);
-	   		}
-   		
-	   		return $str;
-	   	}
-
-		// Access the CI object
-		$CI =& get_instance();
-		
+			}
+
+			return $str;
+		}
+
 		// ODBC doesn't require escaping
-		$str = $CI->input->_remove_invisible_characters($str);
-		
+		$str = remove_invisible_characters($str);
+
 		// escape LIKE condition wildcards
 		if ($like === TRUE)
 		{
@@ -285,10 +282,10 @@ class CI_DB_odbc_driver extends CI_DB {
 								array($this->_like_escape_chr.'%', $this->_like_escape_chr.'_', $this->_like_escape_chr.$this->_like_escape_chr),
 								$str);
 		}
-		
+
 		return $str;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -301,7 +298,7 @@ class CI_DB_odbc_driver extends CI_DB {
 	{
 		return @odbc_num_rows($this->conn_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -362,13 +359,13 @@ class CI_DB_odbc_driver extends CI_DB {
 
 		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
 		{
-			//$sql .= " LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_char);
+			//$sql .= " LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
 			return FALSE; // not currently supported
 		}
-		
+
 		return $sql;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -413,7 +410,7 @@ class CI_DB_odbc_driver extends CI_DB {
 	{
 		return odbc_errormsg($this->conn_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -449,26 +446,26 @@ class CI_DB_odbc_driver extends CI_DB {
 		{
 			if (strpos($item, '.'.$id) !== FALSE)
 			{
-				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);  
-				
+				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);
+
 				// remove duplicates if the user already included the escape
 				return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
-			}		
+			}
 		}
-	
+
 		if (strpos($item, '.') !== FALSE)
 		{
-			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;			
+			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;
 		}
 		else
 		{
 			$str = $this->_escape_char.$item.$this->_escape_char;
 		}
-		
+
 		// remove duplicates if the user already included the escape
 		return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
 	}
-			
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -487,12 +484,12 @@ class CI_DB_odbc_driver extends CI_DB {
 		{
 			$tables = array($tables);
 		}
-		
+
 		return '('.implode(', ', $tables).')';
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Insert statement
 	 *
@@ -505,10 +502,10 @@ class CI_DB_odbc_driver extends CI_DB {
 	 * @return	string
 	 */
 	function _insert($table, $keys, $values)
-	{	
+	{
 		return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -530,21 +527,21 @@ class CI_DB_odbc_driver extends CI_DB {
 		{
 			$valstr[] = $key." = ".$val;
 		}
-		
+
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-		
+
 		$orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):'';
-	
+
 		$sql = "UPDATE ".$table." SET ".implode(', ', $valstr);
 
 		$sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : '';
 
 		$sql .= $orderby.$limit;
-		
+
 		return $sql;
 	}
 
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -557,12 +554,12 @@ class CI_DB_odbc_driver extends CI_DB {
 	 * @access	public
 	 * @param	string	the table name
 	 * @return	string
-	 */	
+	 */
 	function _truncate($table)
 	{
 		return $this->_delete($table);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -575,7 +572,7 @@ class CI_DB_odbc_driver extends CI_DB {
 	 * @param	array	the where clause
 	 * @param	string	the limit clause
 	 * @return	string
-	 */	
+	 */
 	function _delete($table, $where = array(), $like = array(), $limit = FALSE)
 	{
 		$conditions = '';
@@ -593,7 +590,7 @@ class CI_DB_odbc_driver extends CI_DB {
 		}
 
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-	
+
 		return "DELETE FROM ".$table.$conditions.$limit;
 	}
 
@@ -630,7 +627,7 @@ class CI_DB_odbc_driver extends CI_DB {
 		@odbc_close($conn_id);
 	}
 
-	
+
 }
 
 
diff --git a/system/database/drivers/odbc/odbc_forge.php b/system/database/drivers/odbc/odbc_forge.php
index 1ae559b6e..3ec86b4e9 100644..100755
--- a/system/database/drivers/odbc/odbc_forge.php
+++ b/system/database/drivers/odbc/odbc_forge.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -54,7 +54,7 @@ class CI_DB_odbc_forge extends CI_DB_forge {
 	function _drop_database($name)
 	{
 		// ODBC has no "drop database" command since it's
-		// designed to connect to an existing database		
+		// designed to connect to an existing database
 		if ($this->db->db_debug)
 		{
 			return $this->db->display_error('db_unsuported_feature');
@@ -78,12 +78,12 @@ class CI_DB_odbc_forge extends CI_DB_forge {
 	function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 	{
 		$sql = 'CREATE TABLE ';
-		
+
 		if ($if_not_exists === TRUE)
 		{
 			$sql .= 'IF NOT EXISTS ';
 		}
-		
+
 		$sql .= $this->db->_escape_identifiers($table)." (";
 		$current_field_count = 0;
 
@@ -99,41 +99,41 @@ class CI_DB_odbc_forge extends CI_DB_forge {
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
-				
+
 				$sql .= "\n\t".$this->db->_protect_identifiers($field);
-				
+
 				$sql .=  ' '.$attributes['TYPE'];
-	
+
 				if (array_key_exists('CONSTRAINT', $attributes))
 				{
 					$sql .= '('.$attributes['CONSTRAINT'].')';
 				}
-	
+
 				if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE)
 				{
 					$sql .= ' UNSIGNED';
 				}
-	
+
 				if (array_key_exists('DEFAULT', $attributes))
 				{
 					$sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
 				}
-	
+
 				if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE)
 				{
 					$sql .= ' NULL';
 				}
 				else
 				{
-					$sql .= ' NOT NULL';			
+					$sql .= ' NOT NULL';
 				}
-	
+
 				if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE)
 				{
 					$sql .= ' AUTO_INCREMENT';
 				}
 			}
-			
+
 			// don't add a comma on the end of the last field
 			if (++$current_field_count < count($fields))
 			{
@@ -146,24 +146,24 @@ class CI_DB_odbc_forge extends CI_DB_forge {
 			$primary_keys = $this->db->_protect_identifiers($primary_keys);
 			$sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")";
 		}
-		
+
 		if (is_array($keys) && count($keys) > 0)
 		{
 			foreach ($keys as $key)
 			{
 				if (is_array($key))
 				{
-					$key = $this->db->_protect_identifiers($key);	
+					$key = $this->db->_protect_identifiers($key);
 				}
 				else
 				{
 					$key = array($this->db->_protect_identifiers($key));
 				}
-				
+
 				$sql .= ",\n\tFOREIGN KEY (" . implode(', ', $key) . ")";
 			}
 		}
-		
+
 		$sql .= "\n)";
 
 		return $sql;
@@ -179,7 +179,7 @@ class CI_DB_odbc_forge extends CI_DB_forge {
 	 */
 	function _drop_table($table)
 	{
-		// Not a supported ODBC feature	
+		// Not a supported ODBC feature
 		if ($this->db->db_debug)
 		{
 			return $this->db->display_error('db_unsuported_feature');
@@ -235,9 +235,9 @@ class CI_DB_odbc_forge extends CI_DB_forge {
 		{
 			$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
 		}
-		
+
 		return $sql;
-		
+
 	}
 
 
diff --git a/system/database/drivers/odbc/odbc_result.php b/system/database/drivers/odbc/odbc_result.php
index 5ae46df62..a81a2b8b7 100644..100755
--- a/system/database/drivers/odbc/odbc_result.php
+++ b/system/database/drivers/odbc/odbc_result.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -25,7 +25,7 @@
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_odbc_result extends CI_DB_result {
-	
+
 	/**
 	 * Number of rows in the result set
 	 *
@@ -36,7 +36,7 @@ class CI_DB_odbc_result extends CI_DB_result {
 	{
 		return @odbc_num_rows($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -65,9 +65,9 @@ class CI_DB_odbc_result extends CI_DB_result {
 		$field_names = array();
 		for ($i = 0; $i < $this->num_fields(); $i++)
 		{
-			$field_names[] 	= odbc_field_name($this->result_id, $i);
+			$field_names[]	= odbc_field_name($this->result_id, $i);
 		}
-		
+
 		return $field_names;
 	}
 
@@ -86,16 +86,16 @@ class CI_DB_odbc_result extends CI_DB_result {
 		$retval = array();
 		for ($i = 0; $i < $this->num_fields(); $i++)
 		{
-			$F 				= new stdClass();
-			$F->name 		= odbc_field_name($this->result_id, $i);
-			$F->type 		= odbc_field_type($this->result_id, $i);
+			$F				= new stdClass();
+			$F->name		= odbc_field_name($this->result_id, $i);
+			$F->type		= odbc_field_type($this->result_id, $i);
 			$F->max_length	= odbc_field_len($this->result_id, $i);
 			$F->primary_key = 0;
 			$F->default		= '';
 
 			$retval[] = $F;
 		}
-		
+
 		return $retval;
 	}
 
@@ -105,7 +105,7 @@ class CI_DB_odbc_result extends CI_DB_result {
 	 * Free the result
 	 *
 	 * @return	null
-	 */		
+	 */
 	function free_result()
 	{
 		if (is_resource($this->result_id))
diff --git a/system/database/drivers/odbc/odbc_utility.php b/system/database/drivers/odbc/odbc_utility.php
index 4e6848e82..d335bed99 100644..100755
--- a/system/database/drivers/odbc/odbc_utility.php
+++ b/system/database/drivers/odbc/odbc_utility.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -32,7 +32,7 @@ class CI_DB_odbc_utility extends CI_DB_utility {
 	 */
 	function _list_databases()
 	{
-		// Not sure if ODBC lets you list all databases...	
+		// Not sure if ODBC lets you list all databases...
 		if ($this->db->db_debug)
 		{
 			return $this->db->display_error('db_unsuported_feature');
@@ -53,7 +53,7 @@ class CI_DB_odbc_utility extends CI_DB_utility {
 	 */
 	function _optimize_table($table)
 	{
-		// Not a supported ODBC feature	
+		// Not a supported ODBC feature
 		if ($this->db->db_debug)
 		{
 			return $this->db->display_error('db_unsuported_feature');
@@ -74,7 +74,7 @@ class CI_DB_odbc_utility extends CI_DB_utility {
 	 */
 	function _repair_table($table)
 	{
-		// Not a supported ODBC feature	
+		// Not a supported ODBC feature
 		if ($this->db->db_debug)
 		{
 			return $this->db->display_error('db_unsuported_feature');
@@ -96,52 +96,7 @@ class CI_DB_odbc_utility extends CI_DB_utility {
 		// Currently unsupported
 		return $this->db->display_error('db_unsuported_feature');
 	}
-	
-	/**
-	 *
-	 * The functions below have been deprecated as of 1.6, and are only here for backwards
-	 * compatibility.  They now reside in dbforge().  The use of dbutils for database manipulation
-	 * is STRONGLY discouraged in favour if using dbforge.
-	 *
-	 */
 
-	/**
-	 * Create database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _create_database()
-	{
-		// ODBC has no "create database" command since it's
-		// designed to connect to an existing database
-		if ($this->db->db_debug)
-		{
-			return $this->db->display_error('db_unsuported_feature');
-		}
-		return FALSE;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Drop database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _drop_database($name)
-	{
-		// ODBC has no "drop database" command since it's
-		// designed to connect to an existing database		
-		if ($this->db->db_debug)
-		{
-			return $this->db->display_error('db_unsuported_feature');
-		}
-		return FALSE;
-	}
 }
 
 /* End of file odbc_utility.php */
diff --git a/system/database/drivers/postgre/index.html b/system/database/drivers/postgre/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/database/drivers/postgre/index.html
+++ b/system/database/drivers/postgre/index.html
diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php
index bac179d40..0bb7974d8 100644..100755
--- a/system/database/drivers/postgre/postgre_driver.php
+++ b/system/database/drivers/postgre/postgre_driver.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -31,7 +31,7 @@
 class CI_DB_postgre_driver extends CI_DB {
 
 	var $dbdriver = 'postgre';
-	
+
 	var $_escape_char = '"';
 
 	// clause and character used for LIKE escape sequences
@@ -51,7 +51,7 @@ class CI_DB_postgre_driver extends CI_DB {
 	 *
 	 * @access	private
 	 * @return	string
-	 */	
+	 */
 	function _connect_string()
 	{
 		$components = array(
@@ -61,7 +61,7 @@ class CI_DB_postgre_driver extends CI_DB {
 								'username'	=> 'user',
 								'password'	=> 'password'
 							);
-		
+
 		$connect_string = "";
 		foreach ($components as $key => $val)
 		{
@@ -80,9 +80,9 @@ class CI_DB_postgre_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_connect()
-	{		
+	{
 		return @pg_connect($this->_connect_string());
 	}
 
@@ -93,12 +93,12 @@ class CI_DB_postgre_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_pconnect()
 	{
 		return @pg_pconnect($this->_connect_string());
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -125,7 +125,7 @@ class CI_DB_postgre_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_select()
 	{
 		// Not needed for Postgre so we'll return TRUE
@@ -149,7 +149,7 @@ class CI_DB_postgre_driver extends CI_DB {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Version number query string
 	 *
@@ -169,13 +169,13 @@ class CI_DB_postgre_driver extends CI_DB {
 	 * @access	private called by the base class
 	 * @param	string	an SQL query
 	 * @return	resource
-	 */	
+	 */
 	function _execute($sql)
 	{
 		$sql = $this->_prep_query($sql);
 		return @pg_query($this->conn_id, $sql);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -186,7 +186,7 @@ class CI_DB_postgre_driver extends CI_DB {
 	 * @access	private called by execute()
 	 * @param	string	an SQL query
 	 * @return	string
-	 */	
+	 */
 	function _prep_query($sql)
 	{
 		return $sql;
@@ -198,15 +198,15 @@ class CI_DB_postgre_driver extends CI_DB {
 	 * Begin Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_begin($test_mode = FALSE)
 	{
 		if ( ! $this->trans_enabled)
 		{
 			return TRUE;
 		}
-		
+
 		// When transactions are nested we only begin/commit/rollback the outermost ones
 		if ($this->_trans_depth > 0)
 		{
@@ -227,8 +227,8 @@ class CI_DB_postgre_driver extends CI_DB {
 	 * Commit Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_commit()
 	{
 		if ( ! $this->trans_enabled)
@@ -251,8 +251,8 @@ class CI_DB_postgre_driver extends CI_DB {
 	 * Rollback Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_rollback()
 	{
 		if ( ! $this->trans_enabled)
@@ -284,15 +284,15 @@ class CI_DB_postgre_driver extends CI_DB {
 		if (is_array($str))
 		{
 			foreach($str as $key => $val)
-	   		{
+			{
 				$str[$key] = $this->escape_str($val, $like);
-	   		}
-   		
-	   		return $str;
-	   	}
+			}
+
+			return $str;
+		}
 
 		$str = pg_escape_string($str);
-		
+
 		// escape LIKE condition wildcards
 		if ($like === TRUE)
 		{
@@ -300,10 +300,10 @@ class CI_DB_postgre_driver extends CI_DB {
 								array($this->_like_escape_chr.'%', $this->_like_escape_chr.'_', $this->_like_escape_chr.$this->_like_escape_chr),
 								$str);
 		}
-		
+
 		return $str;
 	}
-		
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -316,7 +316,7 @@ class CI_DB_postgre_driver extends CI_DB {
 	{
 		return @pg_affected_rows($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -329,10 +329,10 @@ class CI_DB_postgre_driver extends CI_DB {
 	{
 		$v = $this->_version();
 		$v = $v['server'];
-		
+
 		$table	= func_num_args() > 0 ? func_get_arg(0) : null;
 		$column	= func_num_args() > 1 ? func_get_arg(1) : null;
-		
+
 		if ($table == null && $v >= '8.1')
 		{
 			$sql='SELECT LASTVAL() as ins_id';
@@ -400,17 +400,17 @@ class CI_DB_postgre_driver extends CI_DB {
 	 * @return	string
 	 */
 	function _list_tables($prefix_limit = FALSE)
-	{	
-		$sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'";	
-		
+	{
+		$sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'";
+
 		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
 		{
-			$sql .= " AND table_name LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_char);
+			$sql .= " AND table_name LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
 		}
-		
+
 		return $sql;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -455,7 +455,7 @@ class CI_DB_postgre_driver extends CI_DB {
 	{
 		return pg_last_error($this->conn_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -491,26 +491,26 @@ class CI_DB_postgre_driver extends CI_DB {
 		{
 			if (strpos($item, '.'.$id) !== FALSE)
 			{
-				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);  
-				
+				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);
+
 				// remove duplicates if the user already included the escape
 				return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
-			}		
+			}
 		}
-	
+
 		if (strpos($item, '.') !== FALSE)
 		{
-			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;			
+			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;
 		}
 		else
 		{
 			$str = $this->_escape_char.$item.$this->_escape_char;
 		}
-		
+
 		// remove duplicates if the user already included the escape
 		return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
 	}
-			
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -529,12 +529,12 @@ class CI_DB_postgre_driver extends CI_DB {
 		{
 			$tables = array($tables);
 		}
-		
+
 		return implode(', ', $tables);
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Insert statement
 	 *
@@ -547,10 +547,10 @@ class CI_DB_postgre_driver extends CI_DB {
 	 * @return	string
 	 */
 	function _insert($table, $keys, $values)
-	{	
+	{
 		return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -572,17 +572,17 @@ class CI_DB_postgre_driver extends CI_DB {
 		{
 			$valstr[] = $key." = ".$val;
 		}
-		
+
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-		
+
 		$orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):'';
-	
+
 		$sql = "UPDATE ".$table." SET ".implode(', ', $valstr);
 
 		$sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : '';
 
 		$sql .= $orderby.$limit;
-		
+
 		return $sql;
 	}
 
@@ -598,12 +598,12 @@ class CI_DB_postgre_driver extends CI_DB {
 	 * @access	public
 	 * @param	string	the table name
 	 * @return	string
-	 */	
+	 */
 	function _truncate($table)
 	{
 		return "TRUNCATE ".$table;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -616,7 +616,7 @@ class CI_DB_postgre_driver extends CI_DB {
 	 * @param	array	the where clause
 	 * @param	string	the limit clause
 	 * @return	string
-	 */	
+	 */
 	function _delete($table, $where = array(), $like = array(), $limit = FALSE)
 	{
 		$conditions = '';
@@ -634,7 +634,7 @@ class CI_DB_postgre_driver extends CI_DB {
 		}
 
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-	
+
 		return "DELETE FROM ".$table.$conditions.$limit;
 	}
 
@@ -651,14 +651,14 @@ class CI_DB_postgre_driver extends CI_DB {
 	 * @return	string
 	 */
 	function _limit($sql, $limit, $offset)
-	{	
+	{
 		$sql .= "LIMIT ".$limit;
-	
+
 		if ($offset > 0)
 		{
 			$sql .= " OFFSET ".$offset;
 		}
-		
+
 		return $sql;
 	}
 
diff --git a/system/database/drivers/postgre/postgre_forge.php b/system/database/drivers/postgre/postgre_forge.php
index c98ef425d..91a1c6861 100644..100755
--- a/system/database/drivers/postgre/postgre_forge.php
+++ b/system/database/drivers/postgre/postgre_forge.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -66,12 +66,15 @@ class CI_DB_postgre_forge extends CI_DB_forge {
 	function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 	{
 		$sql = 'CREATE TABLE ';
-		
+
 		if ($if_not_exists === TRUE)
 		{
-			$sql .= 'IF NOT EXISTS ';
+			if ($this->db->table_exists($table))
+			{
+				return "SELECT * FROM $table"; // Needs to return innocous but valid SQL statement
+			}
 		}
-		
+
 		$sql .= $this->db->_escape_identifiers($table)." (";
 		$current_field_count = 0;
 
@@ -87,41 +90,81 @@ class CI_DB_postgre_forge extends CI_DB_forge {
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
-				
+
 				$sql .= "\n\t".$this->db->_protect_identifiers($field);
-				
-				$sql .=  ' '.$attributes['TYPE'];
-	
-				if (array_key_exists('CONSTRAINT', $attributes))
+
+				$is_unsigned = (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE);
+
+				// Convert datatypes to be PostgreSQL-compatible
+				switch (strtoupper($attributes['TYPE']))
 				{
-					$sql .= '('.$attributes['CONSTRAINT'].')';
+					case 'TINYINT':
+						$attributes['TYPE'] = 'SMALLINT';
+						break;
+					case 'SMALLINT':
+						$attributes['TYPE'] = ($is_unsigned) ? 'INTEGER' : 'SMALLINT';
+						break;
+					case 'MEDIUMINT':
+						$attributes['TYPE'] = 'INTEGER';
+						break;
+					case 'INT':
+						$attributes['TYPE'] = ($is_unsigned) ? 'BIGINT' : 'INTEGER';
+						break;
+					case 'BIGINT':
+						$attributes['TYPE'] = ($is_unsigned) ? 'NUMERIC' : 'BIGINT';
+						break;
+					case 'DOUBLE':
+						$attributes['TYPE'] = 'DOUBLE PRECISION';
+						break;
+					case 'DATETIME':
+						$attributes['TYPE'] = 'TIMESTAMP';
+						break;
+					case 'LONGTEXT':
+						$attributes['TYPE'] = 'TEXT';
+						break;
+					case 'BLOB':
+						$attributes['TYPE'] = 'BYTEA';
+						break;
+				}
+
+				// If this is an auto-incrementing primary key, use the serial data type instead
+				if (in_array($field, $primary_keys) && array_key_exists('AUTO_INCREMENT', $attributes) 
+					&& $attributes['AUTO_INCREMENT'] === TRUE)
+				{
+					$sql .= ' SERIAL';
 				}
-	
-				if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE)
+				else
 				{
-					$sql .= ' UNSIGNED';
+					$sql .=  ' '.$attributes['TYPE'];
 				}
-	
+
+				// Modified to prevent constraints with integer data types
+				if (array_key_exists('CONSTRAINT', $attributes) && strpos($attributes['TYPE'], 'INT') === false)
+				{
+					$sql .= '('.$attributes['CONSTRAINT'].')';
+				}
+
 				if (array_key_exists('DEFAULT', $attributes))
 				{
 					$sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
 				}
-	
+
 				if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE)
 				{
 					$sql .= ' NULL';
 				}
 				else
 				{
-					$sql .= ' NOT NULL';			
+					$sql .= ' NOT NULL';
 				}
-	
-				if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE)
+
+				// Added new attribute to create unqite fields. Also works with MySQL
+				if (array_key_exists('UNIQUE', $attributes) && $attributes['UNIQUE'] === TRUE)
 				{
-					$sql .= ' AUTO_INCREMENT';
+					$sql .= ' UNIQUE';
 				}
 			}
-			
+
 			// don't add a comma on the end of the last field
 			if (++$current_field_count < count($fields))
 			{
@@ -131,29 +174,37 @@ class CI_DB_postgre_forge extends CI_DB_forge {
 
 		if (count($primary_keys) > 0)
 		{
-			$primary_keys = $this->db->_protect_identifiers($primary_keys);
+			// Something seems to break when passing an array to _protect_identifiers()
+			foreach ($primary_keys as $index => $key)
+			{
+				$primary_keys[$index] = $this->db->_protect_identifiers($key);
+			}
+
 			$sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")";
 		}
-		
+
+		$sql .= "\n);";
+
 		if (is_array($keys) && count($keys) > 0)
 		{
 			foreach ($keys as $key)
 			{
 				if (is_array($key))
 				{
-					$key = $this->db->_protect_identifiers($key);	
+					$key = $this->db->_protect_identifiers($key);
 				}
 				else
 				{
 					$key = array($this->db->_protect_identifiers($key));
 				}
-				
-				$sql .= ",\n\tFOREIGN KEY (" . implode(', ', $key) . ")";
+
+				foreach ($key as $field)
+				{
+					$sql .= "CREATE INDEX " . $table . "_" . str_replace(array('"', "'"), '', $field) . "_index ON $table ($field); ";
+				}
 			}
 		}
 
-		$sql .= "\n);";
-
 		return $sql;
 	}
 
@@ -162,12 +213,12 @@ class CI_DB_postgre_forge extends CI_DB_forge {
 	/**
 	 * Drop Table
 	 *
-	 * @access	private
-	 * @return	bool
+	 * @access    private
+	 * @return    bool
 	 */
 	function _drop_table($table)
 	{
-		return "DROP TABLE ".$this->db->_escape_identifiers($table)." CASCADE";
+		return "DROP TABLE IF EXISTS ".$this->db->_escape_identifiers($table)." CASCADE";
 	}
 
 	// --------------------------------------------------------------------
@@ -218,9 +269,9 @@ class CI_DB_postgre_forge extends CI_DB_forge {
 		{
 			$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
 		}
-		
+
 		return $sql;
-		
+
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/postgre/postgre_result.php b/system/database/drivers/postgre/postgre_result.php
index 545f413e8..e9a1d1607 100644..100755
--- a/system/database/drivers/postgre/postgre_result.php
+++ b/system/database/drivers/postgre/postgre_result.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -36,7 +36,7 @@ class CI_DB_postgre_result extends CI_DB_result {
 	{
 		return @pg_num_rows($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -67,7 +67,7 @@ class CI_DB_postgre_result extends CI_DB_result {
 		{
 			$field_names[] = pg_field_name($this->result_id, $i);
 		}
-		
+
 		return $field_names;
 	}
 
@@ -86,16 +86,16 @@ class CI_DB_postgre_result extends CI_DB_result {
 		$retval = array();
 		for ($i = 0; $i < $this->num_fields(); $i++)
 		{
-			$F 				= new stdClass();
-			$F->name 		= pg_field_name($this->result_id, $i);
-			$F->type 		= pg_field_type($this->result_id, $i);
+			$F				= new stdClass();
+			$F->name		= pg_field_name($this->result_id, $i);
+			$F->type		= pg_field_type($this->result_id, $i);
 			$F->max_length	= pg_field_size($this->result_id, $i);
 			$F->primary_key = 0;
 			$F->default		= '';
 
 			$retval[] = $F;
 		}
-		
+
 		return $retval;
 	}
 
@@ -105,7 +105,7 @@ class CI_DB_postgre_result extends CI_DB_result {
 	 * Free the result
 	 *
 	 * @return	null
-	 */		
+	 */
 	function free_result()
 	{
 		if (is_resource($this->result_id))
@@ -146,7 +146,7 @@ class CI_DB_postgre_result extends CI_DB_result {
 	{
 		return pg_fetch_assoc($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -161,7 +161,7 @@ class CI_DB_postgre_result extends CI_DB_result {
 	{
 		return pg_fetch_object($this->result_id);
 	}
-	
+
 }
 
 
diff --git a/system/database/drivers/postgre/postgre_utility.php b/system/database/drivers/postgre/postgre_utility.php
index dda22ddb0..741c52ea8 100644..100755
--- a/system/database/drivers/postgre/postgre_utility.php
+++ b/system/database/drivers/postgre/postgre_utility.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -81,42 +81,6 @@ class CI_DB_postgre_utility extends CI_DB_utility {
 		// Currently unsupported
 		return $this->db->display_error('db_unsuported_feature');
 	}
-
-	/**
-	 *
-	 * The functions below have been deprecated as of 1.6, and are only here for backwards
-	 * compatibility.  They now reside in dbforge().  The use of dbutils for database manipulation
-	 * is STRONGLY discouraged in favour if using dbforge.
-	 *
-	 */
-
-	/**
-	 * Create database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _create_database($name)
-	{
-		return "CREATE DATABASE ".$name;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Drop database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _drop_database($name)
-	{
-		return "DROP DATABASE ".$name;
-	}
-
-
 }
 
 
diff --git a/system/database/drivers/sqlite/index.html b/system/database/drivers/sqlite/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/database/drivers/sqlite/index.html
+++ b/system/database/drivers/sqlite/index.html
diff --git a/system/database/drivers/sqlite/sqlite_driver.php b/system/database/drivers/sqlite/sqlite_driver.php
index 05e38848a..5bfc1f558 100644..100755
--- a/system/database/drivers/sqlite/sqlite_driver.php
+++ b/system/database/drivers/sqlite/sqlite_driver.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -33,14 +33,14 @@
 class CI_DB_sqlite_driver extends CI_DB {
 
 	var $dbdriver = 'sqlite';
-	
+
 	// The character used to escape with - not needed for SQLite
 	var $_escape_char = '';
 
 	// clause and character used for LIKE escape sequences
- 	var $_like_escape_str = " ESCAPE '%s' ";
+	var $_like_escape_str = " ESCAPE '%s' ";
 	var $_like_escape_chr = '!';
-	
+
 	/**
 	 * The syntax to count rows is slightly different across different
 	 * database engines, so this string appears in each driver and is
@@ -54,24 +54,24 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_connect()
 	{
 		if ( ! $conn_id = @sqlite_open($this->database, FILE_WRITE_MODE, $error))
 		{
 			log_message('error', $error);
-			
+
 			if ($this->db_debug)
 			{
 				$this->display_error($error, '', TRUE);
 			}
-			
+
 			return FALSE;
 		}
-		
+
 		return $conn_id;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -79,24 +79,24 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_pconnect()
 	{
 		if ( ! $conn_id = @sqlite_popen($this->database, FILE_WRITE_MODE, $error))
 		{
 			log_message('error', $error);
-			
+
 			if ($this->db_debug)
 			{
 				$this->display_error($error, '', TRUE);
 			}
-			
+
 			return FALSE;
 		}
-		
+
 		return $conn_id;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -120,7 +120,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 *
 	 * @access	private called by the base class
 	 * @return	resource
-	 */	
+	 */
 	function db_select()
 	{
 		return TRUE;
@@ -143,7 +143,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Version number query string
 	 *
@@ -154,7 +154,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 	{
 		return sqlite_libversion();
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -163,13 +163,13 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 * @access	private called by the base class
 	 * @param	string	an SQL query
 	 * @return	resource
-	 */	
+	 */
 	function _execute($sql)
 	{
 		$sql = $this->_prep_query($sql);
 		return @sqlite_query($this->conn_id, $sql);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -180,7 +180,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 * @access	private called by execute()
 	 * @param	string	an SQL query
 	 * @return	string
-	 */	
+	 */
 	function _prep_query($sql)
 	{
 		return $sql;
@@ -192,15 +192,15 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 * Begin Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_begin($test_mode = FALSE)
 	{
 		if ( ! $this->trans_enabled)
 		{
 			return TRUE;
 		}
-		
+
 		// When transactions are nested we only begin/commit/rollback the outermost ones
 		if ($this->_trans_depth > 0)
 		{
@@ -222,8 +222,8 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 * Commit Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_commit()
 	{
 		if ( ! $this->trans_enabled)
@@ -247,8 +247,8 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 * Rollback Transaction
 	 *
 	 * @access	public
-	 * @return	bool		
-	 */	
+	 * @return	bool
+	 */
 	function trans_rollback()
 	{
 		if ( ! $this->trans_enabled)
@@ -265,7 +265,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 		$this->simple_query('ROLLBACK');
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -281,15 +281,15 @@ class CI_DB_sqlite_driver extends CI_DB {
 		if (is_array($str))
 		{
 			foreach($str as $key => $val)
-	   		{
+			{
 				$str[$key] = $this->escape_str($val, $like);
-	   		}
-   		
-	   		return $str;
-	   	}
-	
+			}
+
+			return $str;
+		}
+
 		$str = sqlite_escape_string($str);
-		
+
 		// escape LIKE condition wildcards
 		if ($like === TRUE)
 		{
@@ -297,10 +297,10 @@ class CI_DB_sqlite_driver extends CI_DB {
 								array($this->_like_escape_chr.'%', $this->_like_escape_chr.'_', $this->_like_escape_chr.$this->_like_escape_chr),
 								$str);
 		}
-		
+
 		return $str;
 	}
-		
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -313,7 +313,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 	{
 		return sqlite_changes($this->conn_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -347,7 +347,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 		}
 
 		$query = $this->query($this->_count_string . $this->_protect_identifiers('numrows') . " FROM " . $this->_protect_identifiers($table, TRUE, NULL, FALSE));
-		
+
 		if ($query->num_rows() == 0)
 		{
 			return 0;
@@ -374,7 +374,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 
 		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
 		{
-			$sql .= " AND 'name' LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_char);
+			$sql .= " AND 'name' LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
 		}
 		return $sql;
 	}
@@ -424,7 +424,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 	{
 		return sqlite_error_string(sqlite_last_error($this->conn_id));
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -460,26 +460,26 @@ class CI_DB_sqlite_driver extends CI_DB {
 		{
 			if (strpos($item, '.'.$id) !== FALSE)
 			{
-				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);  
-				
+				$str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item);
+
 				// remove duplicates if the user already included the escape
 				return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
-			}		
+			}
 		}
-	
+
 		if (strpos($item, '.') !== FALSE)
 		{
-			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;			
+			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;
 		}
 		else
 		{
 			$str = $this->_escape_char.$item.$this->_escape_char;
 		}
-		
+
 		// remove duplicates if the user already included the escape
 		return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
 	}
-			
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -498,12 +498,12 @@ class CI_DB_sqlite_driver extends CI_DB {
 		{
 			$tables = array($tables);
 		}
-		
+
 		return '('.implode(', ', $tables).')';
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Insert statement
 	 *
@@ -516,10 +516,10 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 * @return	string
 	 */
 	function _insert($table, $keys, $values)
-	{	
+	{
 		return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -541,21 +541,21 @@ class CI_DB_sqlite_driver extends CI_DB {
 		{
 			$valstr[] = $key." = ".$val;
 		}
-		
+
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-		
+
 		$orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):'';
-	
+
 		$sql = "UPDATE ".$table." SET ".implode(', ', $valstr);
 
 		$sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : '';
 
 		$sql .= $orderby.$limit;
-		
+
 		return $sql;
 	}
 
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -568,12 +568,12 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 * @access	public
 	 * @param	string	the table name
 	 * @return	string
-	 */	
+	 */
 	function _truncate($table)
 	{
 		return $this->_delete($table);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -586,7 +586,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 * @param	array	the where clause
 	 * @param	string	the limit clause
 	 * @return	string
-	 */	
+	 */
 	function _delete($table, $where = array(), $like = array(), $limit = FALSE)
 	{
 		$conditions = '';
@@ -604,10 +604,10 @@ class CI_DB_sqlite_driver extends CI_DB {
 		}
 
 		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
-	
+
 		return "DELETE FROM ".$table.$conditions.$limit;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -622,7 +622,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 	 * @return	string
 	 */
 	function _limit($sql, $limit, $offset)
-	{	
+	{
 		if ($offset == 0)
 		{
 			$offset = '';
@@ -631,7 +631,7 @@ class CI_DB_sqlite_driver extends CI_DB {
 		{
 			$offset .= ", ";
 		}
-		
+
 		return $sql."LIMIT ".$offset.$limit;
 	}
 
diff --git a/system/database/drivers/sqlite/sqlite_forge.php b/system/database/drivers/sqlite/sqlite_forge.php
index b7d25e755..56904082e 100644..100755
--- a/system/database/drivers/sqlite/sqlite_forge.php
+++ b/system/database/drivers/sqlite/sqlite_forge.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -75,13 +75,13 @@ class CI_DB_sqlite_forge extends CI_DB_forge {
 	function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 	{
 		$sql = 'CREATE TABLE ';
-		
+
 		// IF NOT EXISTS added to SQLite in 3.3.0
-		if ($if_not_exists === TRUE && version_compare($this->_version(), '3.3.0', '>=') === TRUE)
+		if ($if_not_exists === TRUE && version_compare($this->db->_version(), '3.3.0', '>=') === TRUE)
 		{
 			$sql .= 'IF NOT EXISTS ';
 		}
-		
+
 		$sql .= $this->db->_escape_identifiers($table)."(";
 		$current_field_count = 0;
 
@@ -97,41 +97,41 @@ class CI_DB_sqlite_forge extends CI_DB_forge {
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
-				
+
 				$sql .= "\n\t".$this->db->_protect_identifiers($field);
-				
+
 				$sql .=  ' '.$attributes['TYPE'];
-	
+
 				if (array_key_exists('CONSTRAINT', $attributes))
 				{
 					$sql .= '('.$attributes['CONSTRAINT'].')';
 				}
-	
+
 				if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE)
 				{
 					$sql .= ' UNSIGNED';
 				}
-	
+
 				if (array_key_exists('DEFAULT', $attributes))
 				{
 					$sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
 				}
-	
+
 				if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE)
 				{
 					$sql .= ' NULL';
 				}
 				else
 				{
-					$sql .= ' NOT NULL';			
+					$sql .= ' NOT NULL';
 				}
-	
+
 				if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE)
 				{
 					$sql .= ' AUTO_INCREMENT';
 				}
 			}
-			
+
 			// don't add a comma on the end of the last field
 			if (++$current_field_count < count($fields))
 			{
@@ -151,13 +151,13 @@ class CI_DB_sqlite_forge extends CI_DB_forge {
 			{
 				if (is_array($key))
 				{
-					$key = $this->db->_protect_identifiers($key);	
+					$key = $this->db->_protect_identifiers($key);
 				}
 				else
 				{
 					$key = array($this->db->_protect_identifiers($key));
 				}
-				
+
 				$sql .= ",\n\tUNIQUE (" . implode(', ', $key) . ")";
 			}
 		}
@@ -237,9 +237,9 @@ class CI_DB_sqlite_forge extends CI_DB_forge {
 		{
 			$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
 		}
-		
+
 		return $sql;
-		
+
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/sqlite/sqlite_result.php b/system/database/drivers/sqlite/sqlite_result.php
index 7b0631221..7bd30db7c 100644..100755
--- a/system/database/drivers/sqlite/sqlite_result.php
+++ b/system/database/drivers/sqlite/sqlite_result.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -25,7 +25,7 @@
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_sqlite_result extends CI_DB_result {
-	
+
 	/**
 	 * Number of rows in the result set
 	 *
@@ -36,7 +36,7 @@ class CI_DB_sqlite_result extends CI_DB_result {
 	{
 		return @sqlite_num_rows($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -67,7 +67,7 @@ class CI_DB_sqlite_result extends CI_DB_result {
 		{
 			$field_names[] = sqlite_field_name($this->result_id, $i);
 		}
-		
+
 		return $field_names;
 	}
 
@@ -86,16 +86,16 @@ class CI_DB_sqlite_result extends CI_DB_result {
 		$retval = array();
 		for ($i = 0; $i < $this->num_fields(); $i++)
 		{
-			$F 				= new stdClass();
-			$F->name 		= sqlite_field_name($this->result_id, $i);
-			$F->type 		= 'varchar';
+			$F				= new stdClass();
+			$F->name		= sqlite_field_name($this->result_id, $i);
+			$F->type		= 'varchar';
 			$F->max_length	= 0;
 			$F->primary_key = 0;
 			$F->default		= '';
 
 			$retval[] = $F;
 		}
-		
+
 		return $retval;
 	}
 
@@ -105,7 +105,7 @@ class CI_DB_sqlite_result extends CI_DB_result {
 	 * Free the result
 	 *
 	 * @return	null
-	 */		
+	 */
 	function free_result()
 	{
 		// Not implemented in SQLite
@@ -142,7 +142,7 @@ class CI_DB_sqlite_result extends CI_DB_result {
 	{
 		return sqlite_fetch_array($this->result_id);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -168,7 +168,7 @@ class CI_DB_sqlite_result extends CI_DB_result {
 				return $obj;
 			} else {
 				return NULL;
-			} 
+			}
 		}
 	}
 
diff --git a/system/database/drivers/sqlite/sqlite_utility.php b/system/database/drivers/sqlite/sqlite_utility.php
index 5629dac99..508023e2f 100644..100755
--- a/system/database/drivers/sqlite/sqlite_utility.php
+++ b/system/database/drivers/sqlite/sqlite_utility.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -39,7 +39,7 @@ class CI_DB_sqlite_utility extends CI_DB_utility {
 	{
 		if ($this->db_debug)
 		{
-			return $this->display_error('db_unsuported_feature');
+			return $this->db->display_error('db_unsuported_feature');
 		}
 		return array();
 	}
@@ -90,51 +90,6 @@ class CI_DB_sqlite_utility extends CI_DB_utility {
 		// Currently unsupported
 		return $this->db->display_error('db_unsuported_feature');
 	}
-
-	/**
-	 *
-	 * The functions below have been deprecated as of 1.6, and are only here for backwards
-	 * compatibility.  They now reside in dbforge().  The use of dbutils for database manipulation
-	 * is STRONGLY discouraged in favour if using dbforge.
-	 *
-	 */
-
-	/**
-	 * Create database
-	 *
-	 * @access	public
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _create_database()
-	{
-		// In SQLite, a database is created when you connect to the database.
-		// We'll return TRUE so that an error isn't generated
-		return TRUE;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Drop database
-	 *
-	 * @access	private
-	 * @param	string	the database name
-	 * @return	bool
-	 */
-	function _drop_database($name)
-	{
-		if ( ! @file_exists($this->db->database) OR ! @unlink($this->db->database))
-		{
-			if ($this->db->db_debug)
-			{
-				return $this->db->display_error('db_unable_to_drop');
-			}
-			return FALSE;
-		}
-		return TRUE;
-	}
-
 }
 
 /* End of file sqlite_utility.php */
diff --git a/system/database/index.html b/system/database/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/database/index.html
+++ b/system/database/index.html
diff --git a/system/fonts/index.html b/system/fonts/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/fonts/index.html
+++ b/system/fonts/index.html
diff --git a/system/fonts/texb.ttf b/system/fonts/texb.ttf
index a7aa6469a..6792342a3 100644..100755
--- a/system/fonts/texb.ttf
+++ b/system/fonts/texb.ttf
diff --git a/system/helpers/array_helper.php b/system/helpers/array_helper.php
index b7289900f..6b2415df2 100644..100755
--- a/system/helpers/array_helper.php
+++ b/system/helpers/array_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -38,7 +38,7 @@
  * @param	array
  * @param	mixed
  * @return	mixed	depends on what the array contains
- */	
+ */
 if ( ! function_exists('element'))
 {
 	function element($item, $array, $default = FALSE)
@@ -49,7 +49,7 @@ if ( ! function_exists('element'))
 		}
 
 		return $array[$item];
-	}	
+	}
 }
 
 // ------------------------------------------------------------------------
@@ -60,7 +60,7 @@ if ( ! function_exists('element'))
  * @access	public
  * @param	array
  * @return	mixed	depends on what the array contains
- */	
+ */
 if ( ! function_exists('random_element'))
 {
 	function random_element($array)
@@ -70,9 +70,49 @@ if ( ! function_exists('random_element'))
 			return $array;
 		}
 		return $array[array_rand($array)];
-	}	
+	}
 }
 
+// --------------------------------------------------------------------
+
+/**
+ * Elements
+ *
+ * Returns only the array items specified.  Will return a default value if
+ * it is not set.
+ *
+ * @access	public
+ * @param	array
+ * @param	array
+ * @param	mixed
+ * @return	mixed	depends on what the array contains
+ */
+if ( ! function_exists('elements'))
+{
+	function elements($items, $array, $default = FALSE)
+	{
+		$return = array();
+		
+		if ( ! is_array($items))
+		{
+			$items = array($items);
+		}
+		
+		foreach ($items as $item)
+		{
+			if (isset($array[$item]))
+			{
+				$return[$item] = $array[$item];
+			}
+			else
+			{
+				$return[$item] = $default;
+			}
+		}
+
+		return $return;
+	}
+}
 
 /* End of file array_helper.php */
 /* Location: ./system/helpers/array_helper.php */
\ No newline at end of file
diff --git a/system/helpers/captcha_helper.php b/system/helpers/captcha_helper.php
new file mode 100755
index 000000000..c0e3798f4
--- /dev/null
+++ b/system/helpers/captcha_helper.php
@@ -0,0 +1,246 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter CAPTCHA Helper
+ *
+ * @package		CodeIgniter
+ * @subpackage	Helpers
+ * @category	Helpers
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/helpers/xml_helper.html
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Create CAPTCHA
+ *
+ * @access	public
+ * @param	array	array of data for the CAPTCHA
+ * @param	string	path to create the image in
+ * @param	string	URL to the CAPTCHA image folder
+ * @param	string	server path to font
+ * @return	string
+ */
+if ( ! function_exists('create_captcha'))
+{
+	function create_captcha($data = '', $img_path = '', $img_url = '', $font_path = '')
+	{
+		$defaults = array('word' => '', 'img_path' => '', 'img_url' => '', 'img_width' => '150', 'img_height' => '30', 'font_path' => '', 'expiration' => 7200);
+
+		foreach ($defaults as $key => $val)
+		{
+			if ( ! is_array($data))
+			{
+				if ( ! isset($$key) OR $$key == '')
+				{
+					$$key = $val;
+				}
+			}
+			else
+			{
+				$$key = ( ! isset($data[$key])) ? $val : $data[$key];
+			}
+		}
+
+		if ($img_path == '' OR $img_url == '')
+		{
+			return FALSE;
+		}
+
+		if ( ! @is_dir($img_path))
+		{
+			return FALSE;
+		}
+
+		if ( ! is_writable($img_path))
+		{
+			return FALSE;
+		}
+
+		if ( ! extension_loaded('gd'))
+		{
+			return FALSE;
+		}
+
+		// -----------------------------------
+		// Remove old images
+		// -----------------------------------
+
+		list($usec, $sec) = explode(" ", microtime());
+		$now = ((float)$usec + (float)$sec);
+
+		$current_dir = @opendir($img_path);
+
+		while($filename = @readdir($current_dir))
+		{
+			if ($filename != "." and $filename != ".." and $filename != "index.html")
+			{
+				$name = str_replace(".jpg", "", $filename);
+
+				if (($name + $expiration) < $now)
+				{
+					@unlink($img_path.$filename);
+				}
+			}
+		}
+
+		@closedir($current_dir);
+
+		// -----------------------------------
+		// Do we have a "word" yet?
+		// -----------------------------------
+
+	   if ($word == '')
+	   {
+			$pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
+
+			$str = '';
+			for ($i = 0; $i < 8; $i++)
+			{
+				$str .= substr($pool, mt_rand(0, strlen($pool) -1), 1);
+			}
+
+			$word = $str;
+	   }
+
+		// -----------------------------------
+		// Determine angle and position
+		// -----------------------------------
+
+		$length	= strlen($word);
+		$angle	= ($length >= 6) ? rand(-($length-6), ($length-6)) : 0;
+		$x_axis	= rand(6, (360/$length)-16);
+		$y_axis = ($angle >= 0 ) ? rand($img_height, $img_width) : rand(6, $img_height);
+
+		// -----------------------------------
+		// Create image
+		// -----------------------------------
+
+		// PHP.net recommends imagecreatetruecolor(), but it isn't always available
+		if (function_exists('imagecreatetruecolor'))
+		{
+			$im = imagecreatetruecolor($img_width, $img_height);
+		}
+		else
+		{
+			$im = imagecreate($img_width, $img_height);
+		}
+
+		// -----------------------------------
+		//  Assign colors
+		// -----------------------------------
+
+		$bg_color		= imagecolorallocate ($im, 255, 255, 255);
+		$border_color	= imagecolorallocate ($im, 153, 102, 102);
+		$text_color		= imagecolorallocate ($im, 204, 153, 153);
+		$grid_color		= imagecolorallocate($im, 255, 182, 182);
+		$shadow_color	= imagecolorallocate($im, 255, 240, 240);
+
+		// -----------------------------------
+		//  Create the rectangle
+		// -----------------------------------
+
+		ImageFilledRectangle($im, 0, 0, $img_width, $img_height, $bg_color);
+
+		// -----------------------------------
+		//  Create the spiral pattern
+		// -----------------------------------
+
+		$theta		= 1;
+		$thetac		= 7;
+		$radius		= 16;
+		$circles	= 20;
+		$points		= 32;
+
+		for ($i = 0; $i < ($circles * $points) - 1; $i++)
+		{
+			$theta = $theta + $thetac;
+			$rad = $radius * ($i / $points );
+			$x = ($rad * cos($theta)) + $x_axis;
+			$y = ($rad * sin($theta)) + $y_axis;
+			$theta = $theta + $thetac;
+			$rad1 = $radius * (($i + 1) / $points);
+			$x1 = ($rad1 * cos($theta)) + $x_axis;
+			$y1 = ($rad1 * sin($theta )) + $y_axis;
+			imageline($im, $x, $y, $x1, $y1, $grid_color);
+			$theta = $theta - $thetac;
+		}
+
+		// -----------------------------------
+		//  Write the text
+		// -----------------------------------
+
+		$use_font = ($font_path != '' AND file_exists($font_path) AND function_exists('imagettftext')) ? TRUE : FALSE;
+
+		if ($use_font == FALSE)
+		{
+			$font_size = 5;
+			$x = rand(0, $img_width/($length/3));
+			$y = 0;
+		}
+		else
+		{
+			$font_size	= 16;
+			$x = rand(0, $img_width/($length/1.5));
+			$y = $font_size+2;
+		}
+
+		for ($i = 0; $i < strlen($word); $i++)
+		{
+			if ($use_font == FALSE)
+			{
+				$y = rand(0 , $img_height/2);
+				imagestring($im, $font_size, $x, $y, substr($word, $i, 1), $text_color);
+				$x += ($font_size*2);
+			}
+			else
+			{
+				$y = rand($img_height/2, $img_height-3);
+				imagettftext($im, $font_size, $angle, $x, $y, $text_color, $font_path, substr($word, $i, 1));
+				$x += $font_size;
+			}
+		}
+
+
+		// -----------------------------------
+		//  Create the border
+		// -----------------------------------
+
+		imagerectangle($im, 0, 0, $img_width-1, $img_height-1, $border_color);
+
+		// -----------------------------------
+		//  Generate the image
+		// -----------------------------------
+
+		$img_name = $now.'.jpg';
+
+		ImageJPEG($im, $img_path.$img_name);
+
+		$img = "<img src=\"$img_url$img_name\" width=\"$img_width\" height=\"$img_height\" style=\"border:0;\" alt=\" \" />";
+
+		ImageDestroy($im);
+
+		return array('word' => $word, 'time' => $now, 'image' => $img);
+	}
+}
+
+// ------------------------------------------------------------------------
+
+/* End of file captcha_helper.php */
+/* Location: ./system/heleprs/captcha_helper.php */
\ No newline at end of file
diff --git a/system/helpers/compatibility_helper.php b/system/helpers/compatibility_helper.php
deleted file mode 100644
index e7b21c660..000000000
--- a/system/helpers/compatibility_helper.php
+++ /dev/null
@@ -1,498 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * CodeIgniter Compatibility Helpers
- *
- * This helper contains some functions based on the PEAR PHP_Compat library
- * http://pear.php.net/package/PHP_Compat
- * 
- * The PEAR compat library is a little bloated and the code doesn't harmonize
- * well with CodeIgniter, so those functions have been refactored.
- * We cheat a little and use CI's _exception_handler() to output our own PHP errors
- * so that the behavior fully mimicks the PHP 5 counterparts.  -- Derek Jones
- * 
- * @package		CodeIgniter
- * @subpackage	Helpers
- * @category	Helpers
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/helpers/compatibility_helper.html
- */
-
-// ------------------------------------------------------------------------
-
-if ( ! defined('PHP_EOL'))
-{
-	define('PHP_EOL', (DIRECTORY_SEPARATOR == '/') ? "\n" : "\r\n");
-} 
-
-// ------------------------------------------------------------------------
-
-/**
- * file_put_contents()
- *
- * Writes a string to a file
- * http://us.php.net/manual/en/function.file_put_contents.php
- * argument 4, $context, not supported
- *
- * @access	public
- * @param	string		file name
- * @param	mixed		data to be written
- * @param	int			flags
- * @return	int			length of written string
- */
-if ( ! function_exists('file_put_contents'))
-{
-	function file_put_contents($filename, $data, $flags = NULL)
-	{
-		if (is_scalar($data))
-		{
-			settype($data, 'STRING');
-		}
-
-		if ( ! is_string($data) && ! is_array($data) && ! is_resource($data))
-		{
-			$backtrace = debug_backtrace();
-			_exception_handler(E_USER_WARNING, 'file_put_contents(): the 2nd parameter should be either a string or an array', $backtrace[0]['file'], $backtrace[0]['line']);
-			return FALSE;
-		}
-
-		// read stream if given a stream resource
-		if (is_resource($data))
-		{
-			if (get_resource_type($data) !== 'stream')
-			{
-				$backtrace = debug_backtrace();
-				_exception_handler(E_USER_WARNING, 'file_put_contents(): supplied resource is not a valid stream resource', $backtrace[0]['file'], $backtrace[0]['line']);
-				return FALSE;
-			}
-
-			$text = '';
-			
-			while ( ! feof($data))
-			{
-				$text .= fread($data, 4096);
-			}
-			
-			$data = $text;
-			unset($text);
-		}
-	
-		// strings only please!
-		if (is_array($data))
-		{
-			$data = implode('', $data);
-		}
-
-		// Set the appropriate mode
-		if (($flags & 8) > 0) // 8 = FILE_APPEND flag
-		{
-			$mode = FOPEN_WRITE_CREATE;
-		}
-		else
-		{
-			$mode = FOPEN_WRITE_CREATE_DESTRUCTIVE;
-		}
-	
-		// Check if we're using the include path
-		if (($flags & 1) > 0) // 1 = FILE_USE_INCLUDE_PATH flag
-		{
-			$use_include_path = TRUE;
-		}
-		else
-		{
-			$use_include_path = FALSE;
-		}
-	
-		$fp = @fopen($filename, $mode, $use_include_path);
-	
-		if ($fp === FALSE)
-		{
-			$backtrace = debug_backtrace();
-			_exception_handler(E_USER_WARNING, 'file_put_contents('.htmlentities($filename).') failed to open stream', $backtrace[0]['file'], $backtrace[0]['line']);
-			return FALSE;
-		}
-	
-		if (($flags & LOCK_EX) > 0)
-		{
-			if ( ! flock($fp, LOCK_EX))
-			{
-				$backtrace = debug_backtrace();
-				_exception_handler(E_USER_WARNING, 'file_put_contents('.htmlentities($filename).') unable to acquire an exclusive lock on file', $backtrace[0]['file'], $backtrace[0]['line']);
-				return FALSE;
-			}
-		}
-		
-		// write it
-		if (($written = @fwrite($fp, $data)) === FALSE)
-		{
-			$backtrace = debug_backtrace();
-			_exception_handler(E_USER_WARNING, 'file_put_contents('.htmlentities($filename).') failed to write to '.htmlentities($filename), $backtrace[0]['file'], $backtrace[0]['line']);
-		}
-	
-		// Close the handle
-		@fclose($fp);
-	
-		// Return length
-		return $written;
-	}
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * fputcsv()
- *
- * Format line as CSV and write to file pointer
- * http://us.php.net/manual/en/function.fputcsv.php
- *
- * @access	public
- * @param	resource	file pointer
- * @param	array		data to be written
- * @param	string		delimiter
- * @param	string		enclosure
- * @return	int			length of written string
- */
-if ( ! function_exists('fputcsv'))
-{
-	function fputcsv($handle, $fields, $delimiter = ',', $enclosure = '"')
-	{
-		// Checking for a handle resource
-		if ( ! is_resource($handle))
-		{
-			$backtrace = debug_backtrace();
-			_exception_handler(E_USER_WARNING, 'fputcsv() expects parameter 1 to be stream resource, '.gettype($handle).' given', $backtrace[0]['file'], $backtrace[0]['line']);
-			return FALSE;
-		}
-	
-		// OK, it is a resource, but is it a stream?
-		if (get_resource_type($handle) !== 'stream')
-		{
-			$backtrace = debug_backtrace();
-			_exception_handler(E_USER_WARNING, 'fputcsv() expects parameter 1 to be stream resource, '.get_resource_type($handle).' given', $backtrace[0]['file'], $backtrace[0]['line']);
-			return FALSE;
-		}
-	
-		// Checking for an array of fields
-		if ( ! is_array($fields))
-		{
-			$backtrace = debug_backtrace();
-			_exception_handler(E_USER_WARNING, 'fputcsv() expects parameter 2 to be array, '.gettype($fields).' given', $backtrace[0]['file'], $backtrace[0]['line']);
-			return FALSE;
-		}
-	
-		// validate delimiter
-		if (strlen($delimiter) > 1)
-		{
-			$delimiter = substr($delimiter, 0, 1);
-			$backtrace = debug_backtrace();
-			_exception_handler(E_NOTICE, 'fputcsv() delimiter must be one character long, "'.htmlentities($delimiter).'" used', $backtrace[0]['file'], $backtrace[0]['line']);
-		}
-	
-		// validate enclosure
-		if (strlen($enclosure) > 1)
-		{
-			$enclosure = substr($enclosure, 0, 1);
-			$backtrace = debug_backtrace();
-			_exception_handler(E_NOTICE, 'fputcsv() enclosure must be one character long, "'.htmlentities($enclosure).'" used', $backtrace[0]['file'], $backtrace[0]['line']);
-
-		}
-	
-		$out = '';
-	
-		foreach ($fields as $cell)
-		{
-			$cell = str_replace($enclosure, $enclosure.$enclosure, $cell);
-
-			if (strpos($cell, $delimiter) !== FALSE OR strpos($cell, $enclosure) !== FALSE OR strpos($cell, "\n") !== FALSE)
-			{
-				$out .= $enclosure.$cell.$enclosure.$delimiter;
-			}
-			else
-			{
-				$out .= $cell.$delimiter;
-			}
-		}
-	
-		$length = @fwrite($handle, substr($out, 0, -1)."\n");
-	
-		return $length;
-	}
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * stripos()
- *
- * Find position of first occurrence of a case-insensitive string
- * http://us.php.net/manual/en/function.stripos.php
- *
- * @access	public
- * @param	string		haystack
- * @param	string		needle
- * @param	int			offset
- * @return	int			numeric position of the first occurrence of needle in the haystack
- */
-if ( ! function_exists('stripos'))
-{
-	function stripos($haystack, $needle, $offset = NULL)
-	{
-		// Cast non string scalar values
-		if (is_scalar($haystack))
-		{
-			settype($haystack, 'STRING');
-		}
-	
-		if ( ! is_string($haystack))
-		{
-			$backtrace = debug_backtrace();
-			_exception_handler(E_USER_WARNING, 'stripos() expects parameter 1 to be string, '.gettype($haystack).' given', $backtrace[0]['file'], $backtrace[0]['line']);
-			return FALSE;
-		}
-	
-		if ( ! is_scalar($needle))
-		{
-			$backtrace = debug_backtrace();
-			_exception_handler(E_USER_WARNING, 'stripos() needle is not a string or an integer in '.$backtrace[0]['file'], $backtrace[0]['line']);
-			return FALSE;
-		}
-	
-		if (is_float($offset))
-		{
-			$offset = (int)$offset;
-		}
-	
-		if ( ! is_int($offset) && ! is_bool($offset) && ! is_null($offset))
-		{
-			$backtrace = debug_backtrace();
-			_exception_handler(E_USER_WARNING, 'stripos() expects parameter 3 to be long, '.gettype($offset).' given', $backtrace[0]['file'], $backtrace[0]['line']);
-			return NULL;
-		}
-	
-		return strpos(strtolower($haystack), strtolower($needle), $offset);
-	}
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * str_ireplace()
- *
- * Find position of first occurrence of a case-insensitive string
- * http://us.php.net/manual/en/function.str-ireplace.php
- * (parameter 4, $count, is not supported as to do so in PHP 4 would make
- * it a required parameter)
- *
- * @access	public
- * @param	mixed		search
- * @param	mixed		replace
- * @param	mixed		subject
- * @return	int			numeric position of the first occurrence of needle in the haystack
- */
-if ( ! function_exists('str_ireplace'))
-{
-	function str_ireplace($search, $replace, $subject)
-	{
-		// Nothing to do here
-		if ($search === NULL OR $subject === NULL)
-		{
-			return $subject;
-		}
-	
-		// Crazy arguments
-		if (is_scalar($search) && is_array($replace))
-		{
-			$backtrace = debug_backtrace();
-
-			if (is_object($replace))
-			{
-				show_error('Object of class '.get_class($replace).' could not be converted to string in '.$backtrace[0]['file'].' on line '.$backtrace[0]['line']);
-			}
-			else
-			{
-				_exception_handler(E_USER_NOTICE, 'Array to string conversion in '.$backtrace[0]['file'], $backtrace[0]['line']);
-			}
-		}
-	
-		// Searching for an array
-		if (is_array($search))
-		{
-			// Replacing with an array
-			if (is_array($replace))
-			{
-				$search = array_values($search);
-				$replace = array_values($replace);
-
-				if (count($search) >= count($replace))
-				{
-					$replace = array_pad($replace, count($search), '');
-				}
-				else
-				{
-					$replace = array_slice($replace, 0, count($search));
-				}
-			}
-			else
-			{
-				// Replacing with a string all positions
-				$replace = array_fill(0, count($search), $replace);
-			}
-		}
-		else
-		{
-			//Searching for a string and replacing with a string.
-			$search  = array((string)$search);
-			$replace = array((string)$replace);
-		}
-		
-		// Prepare the search array
-		foreach ($search as $search_key => $search_value)
-		{
-			$search[$search_key] = '/'.preg_quote($search_value, '/').'/i';
-		}
-		
-		// Prepare the replace array (escape backreferences)
-		foreach ($replace as $k => $v)
-		{
-			$replace[$k] = str_replace(array(chr(92), '$'), array(chr(92).chr(92), '\$'), $v);
-		}
-	
-		// do the replacement
-		$result = preg_replace($search, $replace, (array)$subject);
-	
-		// Check if subject was initially a string and return it as a string
-		if ( ! is_array($subject))
-		{
-			return current($result);
-		}
-	
-		// Otherwise, just return the array
-		return $result;
-	}
-}
-
-// ------------------------------------------------------------------------
-
-/**
- * http_build_query()
- *
- * Generate URL-encoded query string
- * http://us.php.net/manual/en/function.http-build-query.php
- *
- * @access	public
- * @param	array		form data
- * @param	string		numeric prefix
- * @param	string		argument separator
- * @return	string		URL-encoded string
- */
-if ( ! function_exists('http_build_query'))
-{
-	function http_build_query($formdata, $numeric_prefix = NULL, $separator = NULL)
-	{
-		// Check the data
-		if ( ! is_array($formdata) && ! is_object($formdata))
-		{
-			$backtrace = debug_backtrace();
-			_exception_handler(E_USER_WARNING, 'http_build_query() Parameter 1 expected to be Array or Object. Incorrect value given', $backtrace[0]['file'], $backtrace[0]['line']);
-			return FALSE;
-		}
-	
-		// Cast it as array
-		if (is_object($formdata))
-		{
-			$formdata = get_object_vars($formdata);
-		}
-	
-		// If the array is empty, return NULL
-		if (empty($formdata))
-		{
-			return NULL;
-		}
-	
-		// Argument separator
-		if ($separator === NULL)
-		{
-			$separator = ini_get('arg_separator.output');
-
-			if (strlen($separator) == 0)
-			{
-				$separator = '&';
-			}
-		}
-	
-		// Start building the query
-		$tmp = array();
-
-		foreach ($formdata as $key => $val)
-		{
-			if ($val === NULL)
-			{
-				continue;
-			}
-	
-			if (is_integer($key) && $numeric_prefix != NULL)
-			{
-				$key = $numeric_prefix.$key;
-			}
-	
-			if (is_resource($val))
-			{
-				return NULL;
-			}
-			
-			// hand it off to a recursive parser
-			$tmp[] = _http_build_query_helper($key, $val, $separator);
-		}
-	
-		return implode($separator, $tmp);
-	}
-	
-	
-	// Helper helper.  Remind anyone of college?
-	// Required to handle recursion in nested arrays.
-	// 
-	// You could shave fractions of fractions of a second by moving where
-	// the urlencoding takes place, but it's much less intuitive, and if
-	// your application has 10,000 form fields, well, you have other problems ;)
-	function _http_build_query_helper($key, $val, $separator = '&')
-	{	
-		if (is_scalar($val))
-		{
-			return urlencode($key).'='.urlencode($val);			
-		}
-		else
-		{
-			// arrays please
-			if (is_object($val))
-			{
-				$val = get_object_vars($val);
-			}
-			
-			foreach ($val as $k => $v)
-			{
-				$tmp[] = _http_build_query_helper($key.'['.$k.']', $v, $separator);
-			}
-		}
-			
-		return implode($separator, $tmp);
-	}
-}
-
-
-/* End of file compatibility_helper.php */
-/* Location: ./system/helpers/compatibility_helper.php */
\ No newline at end of file
diff --git a/system/helpers/cookie_helper.php b/system/helpers/cookie_helper.php
index 40afadb57..7701d503f 100644..100755
--- a/system/helpers/cookie_helper.php
+++ b/system/helpers/cookie_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -46,53 +46,12 @@ if ( ! function_exists('set_cookie'))
 {
 	function set_cookie($name = '', $value = '', $expire = '', $domain = '', $path = '/', $prefix = '')
 	{
-		if (is_array($name))
-		{		
-			foreach (array('value', 'expire', 'domain', 'path', 'prefix', 'name') as $item)
-			{
-				if (isset($name[$item]))
-				{
-					$$item = $name[$item];
-				}
-			}
-		}
-	
 		// Set the config file options
 		$CI =& get_instance();
-	
-		if ($prefix == '' AND $CI->config->item('cookie_prefix') != '')
-		{
-			$prefix = $CI->config->item('cookie_prefix');
-		}
-		if ($domain == '' AND $CI->config->item('cookie_domain') != '')
-		{
-			$domain = $CI->config->item('cookie_domain');
-		}
-		if ($path == '/' AND $CI->config->item('cookie_path') != '/')
-		{
-			$path = $CI->config->item('cookie_path');
-		}
-		
-		if ( ! is_numeric($expire))
-		{
-			$expire = time() - 86500;
-		}
-		else
-		{
-			if ($expire > 0)
-			{
-				$expire = time() + $expire;
-			}
-			else
-			{
-				$expire = 0;
-			}
-		}
-	
-		setcookie($prefix.$name, $value, $expire, $path, $domain, 0);
+		$CI->input->set_cookie($name, $value, $expire, $domain, $path, $prefix);
 	}
 }
-	
+
 // --------------------------------------------------------------------
 
 /**
@@ -108,14 +67,14 @@ if ( ! function_exists('get_cookie'))
 	function get_cookie($index = '', $xss_clean = FALSE)
 	{
 		$CI =& get_instance();
-		
+
 		$prefix = '';
-		
+
 		if ( ! isset($_COOKIE[$index]) && config_item('cookie_prefix') != '')
 		{
 			$prefix = config_item('cookie_prefix');
 		}
-		
+
 		return $CI->input->cookie($prefix.$index, $xss_clean);
 	}
 }
diff --git a/system/helpers/date_helper.php b/system/helpers/date_helper.php
index 0e9781666..553e8d7ee 100644..100755
--- a/system/helpers/date_helper.php
+++ b/system/helpers/date_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -34,24 +34,24 @@
  *
  * @access	public
  * @return	integer
- */	
+ */
 if ( ! function_exists('now'))
 {
 	function now()
 	{
 		$CI =& get_instance();
-	
+
 		if (strtolower($CI->config->item('time_reference')) == 'gmt')
 		{
 			$now = time();
 			$system_time = mktime(gmdate("H", $now), gmdate("i", $now), gmdate("s", $now), gmdate("m", $now), gmdate("d", $now), gmdate("Y", $now));
-	
+
 			if (strlen($system_time) < 10)
 			{
 				$system_time = time();
 				log_message('error', 'The Date class could not set a proper GMT timestamp so the local time() value was used.');
 			}
-	
+
 			return $system_time;
 		}
 		else
@@ -60,7 +60,7 @@ if ( ! function_exists('now'))
 		}
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -79,22 +79,22 @@ if ( ! function_exists('now'))
  * @param	string
  * @param	integer
  * @return	integer
- */	
+ */
 if ( ! function_exists('mdate'))
 {
 	function mdate($datestr = '', $time = '')
 	{
 		if ($datestr == '')
 			return '';
-	
+
 		if ($time == '')
 			$time = now();
-		
+
 		$datestr = str_replace('%\\', '', preg_replace("/([a-z]+?){1}/i", "\\\\\\1", $datestr));
 		return date($datestr, $time);
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -106,7 +106,7 @@ if ( ! function_exists('mdate'))
  * @param	string	the chosen format
  * @param	integer	Unix timestamp
  * @return	string
- */	
+ */
 if ( ! function_exists('standard_date'))
 {
 	function standard_date($fmt = 'DATE_RFC822', $time = '')
@@ -114,7 +114,7 @@ if ( ! function_exists('standard_date'))
 		$formats = array(
 						'DATE_ATOM'		=>	'%Y-%m-%dT%H:%i:%s%Q',
 						'DATE_COOKIE'	=>	'%l, %d-%M-%y %H:%i:%s UTC',
-						'DATE_ISO8601'	=>	'%Y-%m-%dT%H:%i:%s%O',
+						'DATE_ISO8601'	=>	'%Y-%m-%dT%H:%i:%s%Q',
 						'DATE_RFC822'	=>	'%D, %d %M %y %H:%i:%s %O',
 						'DATE_RFC850'	=>	'%l, %d-%M-%y %H:%m:%i UTC',
 						'DATE_RFC1036'	=>	'%D, %d %M %y %H:%i:%s %O',
@@ -127,11 +127,11 @@ if ( ! function_exists('standard_date'))
 		{
 			return FALSE;
 		}
-	
+
 		return mdate($formats[$fmt], $time);
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -144,7 +144,7 @@ if ( ! function_exists('standard_date'))
  * @param	integer	a number of seconds
  * @param	integer	Unix timestamp
  * @return	integer
- */	
+ */
 if ( ! function_exists('timespan'))
 {
 	function timespan($seconds = 1, $time = '')
@@ -156,12 +156,12 @@ if ( ! function_exists('timespan'))
 		{
 			$seconds = 1;
 		}
-	
+
 		if ( ! is_numeric($time))
 		{
 			$time = time();
 		}
-	
+
 		if ($time <= $seconds)
 		{
 			$seconds = 1;
@@ -170,85 +170,85 @@ if ( ! function_exists('timespan'))
 		{
 			$seconds = $time - $seconds;
 		}
-		
+
 		$str = '';
 		$years = floor($seconds / 31536000);
-	
+
 		if ($years > 0)
-		{	
+		{
 			$str .= $years.' '.$CI->lang->line((($years	> 1) ? 'date_years' : 'date_year')).', ';
-		}	
-	
+		}
+
 		$seconds -= $years * 31536000;
 		$months = floor($seconds / 2628000);
-	
+
 		if ($years > 0 OR $months > 0)
 		{
 			if ($months > 0)
-			{	
+			{
 				$str .= $months.' '.$CI->lang->line((($months	> 1) ? 'date_months' : 'date_month')).', ';
-			}	
-	
+			}
+
 			$seconds -= $months * 2628000;
 		}
 
 		$weeks = floor($seconds / 604800);
-	
+
 		if ($years > 0 OR $months > 0 OR $weeks > 0)
 		{
 			if ($weeks > 0)
-			{	
+			{
 				$str .= $weeks.' '.$CI->lang->line((($weeks	> 1) ? 'date_weeks' : 'date_week')).', ';
 			}
-		
+
 			$seconds -= $weeks * 604800;
-		}			
+		}
 
 		$days = floor($seconds / 86400);
-	
+
 		if ($months > 0 OR $weeks > 0 OR $days > 0)
 		{
 			if ($days > 0)
-			{	
+			{
 				$str .= $days.' '.$CI->lang->line((($days	> 1) ? 'date_days' : 'date_day')).', ';
 			}
-	
+
 			$seconds -= $days * 86400;
 		}
-	
+
 		$hours = floor($seconds / 3600);
-	
+
 		if ($days > 0 OR $hours > 0)
 		{
 			if ($hours > 0)
 			{
 				$str .= $hours.' '.$CI->lang->line((($hours	> 1) ? 'date_hours' : 'date_hour')).', ';
 			}
-		
+
 			$seconds -= $hours * 3600;
 		}
-	
+
 		$minutes = floor($seconds / 60);
-	
+
 		if ($days > 0 OR $hours > 0 OR $minutes > 0)
 		{
 			if ($minutes > 0)
-			{	
+			{
 				$str .= $minutes.' '.$CI->lang->line((($minutes	> 1) ? 'date_minutes' : 'date_minute')).', ';
 			}
-		
+
 			$seconds -= $minutes * 60;
 		}
-	
+
 		if ($str == '')
 		{
 			$str .= $seconds.' '.$CI->lang->line((($seconds	> 1) ? 'date_seconds' : 'date_second')).', ';
 		}
-			
+
 		return substr(trim($str), 0, -1);
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -261,7 +261,7 @@ if ( ! function_exists('timespan'))
  * @param	integer a numeric month
  * @param	integer	a numeric year
  * @return	integer
- */	
+ */
 if ( ! function_exists('days_in_month'))
 {
 	function days_in_month($month = 0, $year = '')
@@ -270,12 +270,12 @@ if ( ! function_exists('days_in_month'))
 		{
 			return 0;
 		}
-	
+
 		if ( ! is_numeric($year) OR strlen($year) != 4)
 		{
 			$year = date('Y');
 		}
-	
+
 		if ($month == 2)
 		{
 			if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0))
@@ -288,7 +288,7 @@ if ( ! function_exists('days_in_month'))
 		return $days_in_month[$month - 1];
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -297,18 +297,18 @@ if ( ! function_exists('days_in_month'))
  * @access	public
  * @param	integer Unix timestamp
  * @return	integer
- */	
+ */
 if ( ! function_exists('local_to_gmt'))
 {
 	function local_to_gmt($time = '')
 	{
 		if ($time == '')
 			$time = time();
-	
+
 		return mktime( gmdate("H", $time), gmdate("i", $time), gmdate("s", $time), gmdate("m", $time), gmdate("d", $time), gmdate("Y", $time));
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -323,27 +323,27 @@ if ( ! function_exists('local_to_gmt'))
  * @param	string	timezone
  * @param	bool	whether DST is active
  * @return	integer
- */	
+ */
 if ( ! function_exists('gmt_to_local'))
 {
 	function gmt_to_local($time = '', $timezone = 'UTC', $dst = FALSE)
-	{			
+	{
 		if ($time == '')
 		{
 			return now();
 		}
-	
+
 		$time += timezones($timezone) * 3600;
 
 		if ($dst == TRUE)
 		{
 			$time += 3600;
 		}
-	
+
 		return $time;
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -352,7 +352,7 @@ if ( ! function_exists('gmt_to_local'))
  * @access	public
  * @param	integer Unix timestamp
  * @return	integer
- */	
+ */
 if ( ! function_exists('mysql_to_unix'))
 {
 	function mysql_to_unix($time = '')
@@ -360,11 +360,11 @@ if ( ! function_exists('mysql_to_unix'))
 		// We'll remove certain characters for backward compatibility
 		// since the formatting changed with MySQL 4.1
 		// YYYY-MM-DD HH:MM:SS
-	
+
 		$time = str_replace('-', '', $time);
 		$time = str_replace(':', '', $time);
 		$time = str_replace(' ', '', $time);
-	
+
 		// YYYYMMDDHHMMSS
 		return  mktime(
 						substr($time, 8, 2),
@@ -376,7 +376,7 @@ if ( ! function_exists('mysql_to_unix'))
 						);
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -389,13 +389,13 @@ if ( ! function_exists('mysql_to_unix'))
  * @param	bool	whether to show seconds
  * @param	string	format: us or euro
  * @return	string
- */	
+ */
 if ( ! function_exists('unix_to_human'))
 {
 	function unix_to_human($time = '', $seconds = FALSE, $fmt = 'us')
 	{
 		$r  = date('Y', $time).'-'.date('m', $time).'-'.date('d', $time).' ';
-		
+
 		if ($fmt == 'us')
 		{
 			$r .= date('h', $time).':'.date('i', $time);
@@ -404,21 +404,21 @@ if ( ! function_exists('unix_to_human'))
 		{
 			$r .= date('H', $time).':'.date('i', $time);
 		}
-	
+
 		if ($seconds)
 		{
 			$r .= ':'.date('s', $time);
 		}
-	
+
 		if ($fmt == 'us')
 		{
 			$r .= ' '.date('A', $time);
 		}
-		
+
 		return $r;
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -429,7 +429,7 @@ if ( ! function_exists('unix_to_human'))
  * @access	public
  * @param	string	format: us or euro
  * @return	integer
- */	
+ */
 if ( ! function_exists('human_to_unix'))
 {
 	function human_to_unix($datestr = '')
@@ -438,25 +438,25 @@ if ( ! function_exists('human_to_unix'))
 		{
 			return FALSE;
 		}
-	
+
 		$datestr = trim($datestr);
-		$datestr = preg_replace("/\040+/", "\040", $datestr);
+		$datestr = preg_replace("/\040+/", ' ', $datestr);
 
 		if ( ! preg_match('/^[0-9]{2,4}\-[0-9]{1,2}\-[0-9]{1,2}\s[0-9]{1,2}:[0-9]{1,2}(?::[0-9]{1,2})?(?:\s[AP]M)?$/i', $datestr))
 		{
 			return FALSE;
 		}
 
-		$split = preg_split("/\040/", $datestr);
+		$split = explode(' ', $datestr);
 
 		$ex = explode("-", $split['0']);
-	
+
 		$year  = (strlen($ex['0']) == 2) ? '20'.$ex['0'] : $ex['0'];
 		$month = (strlen($ex['1']) == 1) ? '0'.$ex['1']  : $ex['1'];
 		$day   = (strlen($ex['2']) == 1) ? '0'.$ex['2']  : $ex['2'];
 
 		$ex = explode(":", $split['1']);
-	
+
 		$hour = (strlen($ex['0']) == 1) ? '0'.$ex['0'] : $ex['0'];
 		$min  = (strlen($ex['1']) == 1) ? '0'.$ex['1'] : $ex['1'];
 
@@ -469,25 +469,25 @@ if ( ! function_exists('human_to_unix'))
 			// Unless specified, seconds get set to zero.
 			$sec = '00';
 		}
-	
+
 		if (isset($split['2']))
 		{
 			$ampm = strtolower($split['2']);
-		
+
 			if (substr($ampm, 0, 1) == 'p' AND $hour < 12)
 				$hour = $hour + 12;
-			
+
 			if (substr($ampm, 0, 1) == 'a' AND $hour == 12)
 				$hour =  '00';
-			
+
 			if (strlen($hour) == 1)
 				$hour = '0'.$hour;
 		}
-			
+
 		return mktime($hour, $min, $sec, $month, $day, $year);
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -500,26 +500,26 @@ if ( ! function_exists('human_to_unix'))
  * @param	string	classname
  * @param	string	menu name
  * @return	string
- */	
+ */
 if ( ! function_exists('timezone_menu'))
 {
 	function timezone_menu($default = 'UTC', $class = "", $name = 'timezones')
 	{
 		$CI =& get_instance();
 		$CI->lang->load('date');
-	
+
 		if ($default == 'GMT')
 			$default = 'UTC';
 
 		$menu = '<select name="'.$name.'"';
-	
+
 		if ($class != '')
 		{
 			$menu .= ' class="'.$class.'"';
 		}
-	
+
 		$menu .= ">\n";
-	
+
 		foreach (timezones() as $key => $val)
 		{
 			$selected = ($default == $key) ? " selected='selected'" : '';
@@ -531,7 +531,7 @@ if ( ! function_exists('timezone_menu'))
 		return $menu;
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -543,15 +543,15 @@ if ( ! function_exists('timezone_menu'))
  * @access	public
  * @param	string	timezone
  * @return	string
- */	
+ */
 if ( ! function_exists('timezones'))
 {
 	function timezones($tz = '')
 	{
 		// Note: Don't change the order of these even though
 		// some items appear to be in the wrong order
-		
-		$zones = array( 
+
+		$zones = array(
 						'UM12'		=> -12,
 						'UM11'		=> -11,
 						'UM10'		=> -10,
@@ -593,15 +593,15 @@ if ( ! function_exists('timezones'))
 						'UP13'		=> +13,
 						'UP14'		=> +14
 					);
-				
+
 		if ($tz == '')
 		{
 			return $zones;
 		}
-	
+
 		if ($tz == 'GMT')
 			$tz = 'UTC';
-	
+
 		return ( ! isset($zones[$tz])) ? 0 : $zones[$tz];
 	}
 }
diff --git a/system/helpers/directory_helper.php b/system/helpers/directory_helper.php
index 791cf0d10..38347fa62 100644..100755
--- a/system/helpers/directory_helper.php
+++ b/system/helpers/directory_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -36,46 +36,42 @@
  *
  * @access	public
  * @param	string	path to source
- * @param	bool	whether to limit the result to the top level only
+ * @param	int		depth of directories to traverse (0 = fully recursive, 1 = current dir, etc)
  * @return	array
- */	
+ */
 if ( ! function_exists('directory_map'))
 {
-	function directory_map($source_dir, $top_level_only = FALSE, $hidden = FALSE)
-	{	
+	function directory_map($source_dir, $directory_depth = 0, $hidden = FALSE)
+	{
 		if ($fp = @opendir($source_dir))
 		{
-			$source_dir = rtrim($source_dir, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;		
-			$filedata = array();
-			
+			$filedata	= array();
+			$new_depth	= $directory_depth - 1;
+			$source_dir	= rtrim($source_dir, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;
+
 			while (FALSE !== ($file = readdir($fp)))
 			{
-				if (($hidden == FALSE && strncmp($file, '.', 1) == 0) OR ($file == '.' OR $file == '..'))
+				// Remove '.', '..', and hidden files [optional]
+				if ( ! trim($file, '.') OR ($hidden == FALSE && $file[0] == '.'))
 				{
 					continue;
 				}
-				
-				if ($top_level_only == FALSE && @is_dir($source_dir.$file))
+
+				if (($directory_depth < 1 OR $new_depth > 0) && @is_dir($source_dir.$file))
 				{
-					$temp_array = array();
-				
-					$temp_array = directory_map($source_dir.$file.DIRECTORY_SEPARATOR, $top_level_only, $hidden);
-				
-					$filedata[$file] = $temp_array;
+					$filedata[$file] = directory_map($source_dir.$file.DIRECTORY_SEPARATOR, $new_depth, $hidden);
 				}
 				else
 				{
 					$filedata[] = $file;
 				}
 			}
-			
+
 			closedir($fp);
 			return $filedata;
 		}
-		else
-		{
-			return FALSE;
-		}
+
+		return FALSE;
 	}
 }
 
diff --git a/system/helpers/download_helper.php b/system/helpers/download_helper.php
index 638ebaa88..6cecd0d11 100644..100755
--- a/system/helpers/download_helper.php
+++ b/system/helpers/download_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -36,7 +36,7 @@
  * @param	string	filename
  * @param	mixed	the data to be downloaded
  * @return	void
- */	
+ */
 if ( ! function_exists('force_download'))
 {
 	function force_download($filename = '', $data = '')
@@ -52,14 +52,14 @@ if ( ! function_exists('force_download'))
 		{
 			return FALSE;
 		}
-	
+
 		// Grab the file extension
 		$x = explode('.', $filename);
 		$extension = end($x);
 
 		// Load the mime types
 		@include(APPPATH.'config/mimes'.EXT);
-	
+
 		// Set a default mime if we can't find it
 		if ( ! isset($mimes[$extension]))
 		{
@@ -69,9 +69,9 @@ if ( ! function_exists('force_download'))
 		{
 			$mime = (is_array($mimes[$extension])) ? $mimes[$extension][0] : $mimes[$extension];
 		}
-	
+
 		// Generate the server headers
-		if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE"))
+		if (strpos($_SERVER['HTTP_USER_AGENT'], "MSIE") !== FALSE)
 		{
 			header('Content-Type: "'.$mime.'"');
 			header('Content-Disposition: attachment; filename="'.$filename.'"');
@@ -90,7 +90,7 @@ if ( ! function_exists('force_download'))
 			header('Pragma: no-cache');
 			header("Content-Length: ".strlen($data));
 		}
-	
+
 		exit($data);
 	}
 }
diff --git a/system/helpers/email_helper.php b/system/helpers/email_helper.php
index 046562a91..651aef439 100644..100755
--- a/system/helpers/email_helper.php
+++ b/system/helpers/email_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -32,7 +32,7 @@
  *
  * @access	public
  * @return	bool
- */	
+ */
 if ( ! function_exists('valid_email'))
 {
 	function valid_email($address)
@@ -48,7 +48,7 @@ if ( ! function_exists('valid_email'))
  *
  * @access	public
  * @return	bool
- */	
+ */
 if ( ! function_exists('send_email'))
 {
 	function send_email($recipient, $subject = 'Test email', $message = 'Hello World')
diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php
index fea54a1f6..334eef87c 100644..100755
--- a/system/helpers/file_helper.php
+++ b/system/helpers/file_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -35,7 +35,7 @@
  * @access	public
  * @param	string	path to file
  * @return	string
- */	
+ */
 if ( ! function_exists('read_file'))
 {
 	function read_file($file)
@@ -44,19 +44,19 @@ if ( ! function_exists('read_file'))
 		{
 			return FALSE;
 		}
-	
+
 		if (function_exists('file_get_contents'))
 		{
-			return file_get_contents($file);		
+			return file_get_contents($file);
 		}
 
 		if ( ! $fp = @fopen($file, FOPEN_READ))
 		{
 			return FALSE;
 		}
-		
+
 		flock($fp, LOCK_SH);
-	
+
 		$data = '';
 		if (filesize($file) > 0)
 		{
@@ -69,7 +69,7 @@ if ( ! function_exists('read_file'))
 		return $data;
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -82,7 +82,7 @@ if ( ! function_exists('read_file'))
  * @param	string	path to file
  * @param	string	file data
  * @return	bool
- */	
+ */
 if ( ! function_exists('write_file'))
 {
 	function write_file($path, $data, $mode = FOPEN_WRITE_CREATE_DESTRUCTIVE)
@@ -91,16 +91,16 @@ if ( ! function_exists('write_file'))
 		{
 			return FALSE;
 		}
-		
+
 		flock($fp, LOCK_EX);
 		fwrite($fp, $data);
 		flock($fp, LOCK_UN);
-		fclose($fp);	
+		fclose($fp);
 
 		return TRUE;
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -115,17 +115,19 @@ if ( ! function_exists('write_file'))
  * @param	string	path to file
  * @param	bool	whether to delete any directories found in the path
  * @return	bool
- */	
+ */
 if ( ! function_exists('delete_files'))
 {
 	function delete_files($path, $del_dir = FALSE, $level = 0)
-	{	
+	{
 		// Trim the trailing slash
 		$path = rtrim($path, DIRECTORY_SEPARATOR);
-			
+
 		if ( ! $current_dir = @opendir($path))
-			return;
-	
+		{
+			return FALSE;
+		}
+
 		while(FALSE !== ($filename = @readdir($current_dir)))
 		{
 			if ($filename != "." and $filename != "..")
@@ -136,7 +138,7 @@ if ( ! function_exists('delete_files'))
 					if (substr($filename, 0, 1) != '.')
 					{
 						delete_files($path.DIRECTORY_SEPARATOR.$filename, $del_dir, $level + 1);
-					}				
+					}
 				}
 				else
 				{
@@ -145,11 +147,13 @@ if ( ! function_exists('delete_files'))
 			}
 		}
 		@closedir($current_dir);
-	
+
 		if ($del_dir == TRUE AND $level > 0)
 		{
-			@rmdir($path);
+			return @rmdir($path);
 		}
+
+		return TRUE;
 	}
 }
 
@@ -158,7 +162,7 @@ if ( ! function_exists('delete_files'))
 /**
  * Get Filenames
  *
- * Reads the specified directory and builds an array containing the filenames.  
+ * Reads the specified directory and builds an array containing the filenames.
  * Any sub-folders contained within the specified path are read as well.
  *
  * @access	public
@@ -166,13 +170,13 @@ if ( ! function_exists('delete_files'))
  * @param	bool	whether to include the path as part of the filename
  * @param	bool	internal variable to determine recursion status - do not use in calls
  * @return	array
- */	
+ */
 if ( ! function_exists('get_filenames'))
 {
 	function get_filenames($source_dir, $include_path = FALSE, $_recursion = FALSE)
 	{
 		static $_filedata = array();
-				
+
 		if ($fp = @opendir($source_dir))
 		{
 			// reset the array and make sure $source_dir has a trailing slash on the initial call
@@ -181,12 +185,12 @@ if ( ! function_exists('get_filenames'))
 				$_filedata = array();
 				$source_dir = rtrim(realpath($source_dir), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;
 			}
-			
+
 			while (FALSE !== ($file = readdir($fp)))
 			{
 				if (@is_dir($source_dir.$file) && strncmp($file, '.', 1) !== 0)
 				{
-					 get_filenames($source_dir.$file.DIRECTORY_SEPARATOR, $include_path, TRUE);
+					get_filenames($source_dir.$file.DIRECTORY_SEPARATOR, $include_path, TRUE);
 				}
 				elseif (strncmp($file, '.', 1) !== 0)
 				{
@@ -207,20 +211,20 @@ if ( ! function_exists('get_filenames'))
 /**
  * Get Directory File Information
  *
- * Reads the specified directory and builds an array containing the filenames,  
+ * Reads the specified directory and builds an array containing the filenames,
  * filesize, dates, and permissions
  *
  * Any sub-folders contained within the specified path are read as well.
  *
  * @access	public
  * @param	string	path to source
- * @param	bool	whether to include the path as part of the filename
+ * @param	bool	Look only at the top level directory specified?
  * @param	bool	internal variable to determine recursion status - do not use in calls
  * @return	array
- */	
+ */
 if ( ! function_exists('get_dir_file_info'))
 {
-	function get_dir_file_info($source_dir, $include_path = FALSE, $_recursion = FALSE)
+	function get_dir_file_info($source_dir, $top_level_only = TRUE, $_recursion = FALSE)
 	{
 		static $_filedata = array();
 		$relative_path = $source_dir;
@@ -234,11 +238,12 @@ if ( ! function_exists('get_dir_file_info'))
 				$source_dir = rtrim(realpath($source_dir), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;
 			}
 
+			// foreach (scandir($source_dir, 1) as $file) // In addition to being PHP5+, scandir() is simply not as fast
 			while (FALSE !== ($file = readdir($fp)))
 			{
-				if (@is_dir($source_dir.$file) && strncmp($file, '.', 1) !== 0)
+				if (@is_dir($source_dir.$file) AND strncmp($file, '.', 1) !== 0 AND $top_level_only === FALSE)
 				{
-					 get_dir_file_info($source_dir.$file.DIRECTORY_SEPARATOR, $include_path, TRUE);
+					get_dir_file_info($source_dir.$file.DIRECTORY_SEPARATOR, $top_level_only, TRUE);
 				}
 				elseif (strncmp($file, '.', 1) !== 0)
 				{
@@ -246,6 +251,7 @@ if ( ! function_exists('get_dir_file_info'))
 					$_filedata[$file]['relative_path'] = $relative_path;
 				}
 			}
+
 			return $_filedata;
 		}
 		else
@@ -299,7 +305,7 @@ if ( ! function_exists('get_file_info'))
 					$fileinfo['size'] = filesize($file);
 					break;
 				case 'date':
-					$fileinfo['date'] = filectime($file);
+					$fileinfo['date'] = filemtime($file);
 					break;
 				case 'readable':
 					$fileinfo['readable'] = is_readable($file);
@@ -326,7 +332,7 @@ if ( ! function_exists('get_file_info'))
 /**
  * Get Mime by Extension
  *
- * Translates a file extension into a mime type based on config/mimes.php. 
+ * Translates a file extension into a mime type based on config/mimes.php.
  * Returns FALSE if it can't determine the type, or open the mime config file
  *
  * Note: this is NOT an accurate way of determining file mime types, and is here strictly as a convenience
@@ -335,12 +341,12 @@ if ( ! function_exists('get_file_info'))
  * @access	public
  * @param	string	path to file
  * @return	mixed
- */	
+ */
 if ( ! function_exists('get_mime_by_extension'))
 {
 	function get_mime_by_extension($file)
 	{
-		$extension = substr(strrchr($file, '.'), 1);
+		$extension = strtolower(substr(strrchr($file, '.'), 1));
 
 		global $mimes;
 
@@ -382,11 +388,11 @@ if ( ! function_exists('get_mime_by_extension'))
  * @access	public
  * @param	int
  * @return	string
- */	
+ */
 if ( ! function_exists('symbolic_permissions'))
 {
 	function symbolic_permissions($perms)
-	{	
+	{
 		if (($perms & 0xC000) == 0xC000)
 		{
 			$symbolic = 's'; // Socket
@@ -435,7 +441,7 @@ if ( ! function_exists('symbolic_permissions'))
 		$symbolic .= (($perms & 0x0002) ? 'w' : '-');
 		$symbolic .= (($perms & 0x0001) ? (($perms & 0x0200) ? 't' : 'x' ) : (($perms & 0x0200) ? 'T' : '-'));
 
-		return $symbolic;		
+		return $symbolic;
 	}
 }
 
@@ -450,7 +456,7 @@ if ( ! function_exists('symbolic_permissions'))
  * @access	public
  * @param	int
  * @return	string
- */	
+ */
 if ( ! function_exists('octal_permissions'))
 {
 	function octal_permissions($perms)
diff --git a/system/helpers/form_helper.php b/system/helpers/form_helper.php
index 31b36efd0..758056b50 100644..100755
--- a/system/helpers/form_helper.php
+++ b/system/helpers/form_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -37,7 +37,7 @@
  * @param	array	a key/value pair of attributes
  * @param	array	a key/value pair hidden data
  * @return	string
- */	
+ */
 if ( ! function_exists('form_open'))
 {
 	function form_open($action = '', $attributes = '', $hidden = array())
@@ -52,14 +52,20 @@ if ( ! function_exists('form_open'))
 		$action = ( strpos($action, '://') === FALSE) ? $CI->config->site_url($action) : $action;
 
 		$form = '<form action="'.$action.'"';
-	
+
 		$form .= _attributes_to_string($attributes, TRUE);
-	
+
 		$form .= '>';
 
+		// CSRF
+		if ($CI->config->item('csrf_protection') === TRUE)
+		{
+			$hidden[$CI->security->csrf_token_name] = $CI->security->csrf_hash;
+		}
+
 		if (is_array($hidden) AND count($hidden) > 0)
 		{
-			$form .= form_hidden($hidden);
+			$form .= sprintf("\n<div class=\"hidden\">%s</div>", form_hidden($hidden));
 		}
 
 		return $form;
@@ -83,7 +89,15 @@ if ( ! function_exists('form_open_multipart'))
 {
 	function form_open_multipart($action, $attributes = array(), $hidden = array())
 	{
-		$attributes['enctype'] = 'multipart/form-data';
+		if (is_string($attributes))
+		{
+			$attributes .= ' enctype="multipart/form-data"';
+		}
+		else
+		{
+			$attributes['enctype'] = 'multipart/form-data';
+		}
+
 		return form_open($action, $attributes, $hidden);
 	}
 }
@@ -129,7 +143,7 @@ if ( ! function_exists('form_hidden'))
 		{
 			foreach ($value as $k => $v)
 			{
-				$k = (is_int($k)) ? '' : $k; 
+				$k = (is_int($k)) ? '' : $k;
 				form_hidden($name.'['.$k.']', $v, TRUE);
 			}
 		}
@@ -236,10 +250,10 @@ if ( ! function_exists('form_textarea'))
 		}
 		else
 		{
-			$val = $data['value']; 
+			$val = $data['value'];
 			unset($data['value']); // textareas don't use the value attribute
 		}
-		
+
 		$name = (is_array($data)) ? $data['name'] : $data;
 		return "<textarea "._parse_form_attributes($data, $defaults).$extra.">".form_prep($val, $name)."</textarea>";
 	}
@@ -257,7 +271,7 @@ if ( ! function_exists('form_textarea'))
  * @param	string
  * @return	type
  */
-if (! function_exists('form_multiselect'))
+if ( ! function_exists('form_multiselect'))
 {
 	function form_multiselect($name = '', $options = array(), $selected = array(), $extra = '')
 	{
@@ -265,7 +279,7 @@ if (! function_exists('form_multiselect'))
 		{
 			$extra .= ' multiple="multiple"';
 		}
-		
+
 		return form_dropdown($name, $options, $selected, $extra);
 	}
 }
@@ -311,7 +325,7 @@ if ( ! function_exists('form_dropdown'))
 		{
 			$key = (string) $key;
 
-			if (is_array($val))
+			if (is_array($val) && ! empty($val))
 			{
 				$form .= '<optgroup label="'.$key.'">'."\n";
 
@@ -400,7 +414,7 @@ if ( ! function_exists('form_radio'))
 	function form_radio($data = '', $value = '', $checked = FALSE, $extra = '')
 	{
 		if ( ! is_array($data))
-		{	
+		{
 			$data = array('name' => $data);
 		}
 
@@ -421,7 +435,7 @@ if ( ! function_exists('form_radio'))
  * @return	string
  */
 if ( ! function_exists('form_submit'))
-{	
+{
 	function form_submit($data = '', $value = '', $extra = '')
 	{
 		$defaults = array('type' => 'submit', 'name' => (( ! is_array($data)) ? $data : ''), 'value' => $value);
@@ -498,7 +512,7 @@ if ( ! function_exists('form_label'))
 
 		if ($id != '')
 		{
-			 $label .= " for=\"$id\"";
+			$label .= " for=\"$id\"";
 		}
 
 		if (is_array($attributes) AND count($attributes) > 0)
@@ -596,7 +610,7 @@ if ( ! function_exists('form_prep'))
 	function form_prep($str = '', $field_name = '')
 	{
 		static $prepped_fields = array();
-		
+
 		// if the field name is an array we do this recursively
 		if (is_array($str))
 		{
@@ -621,7 +635,7 @@ if ( ! function_exists('form_prep'))
 		{
 			return $str;
 		}
-		
+
 		$str = htmlspecialchars($str);
 
 		// In case htmlspecialchars misses these.
@@ -629,9 +643,9 @@ if ( ! function_exists('form_prep'))
 
 		if ($field_name != '')
 		{
-			$prepped_fields[$field_name] = $str;
+			$prepped_fields[$field_name] = $field_name;
 		}
-		
+
 		return $str;
 	}
 }
@@ -743,7 +757,7 @@ if ( ! function_exists('set_checkbox'))
 		$OBJ =& _get_validation_object();
 
 		if ($OBJ === FALSE)
-		{ 
+		{
 			if ( ! isset($_POST[$field]))
 			{
 				if (count($_POST) === 0 AND $default == TRUE)
@@ -754,7 +768,7 @@ if ( ! function_exists('set_checkbox'))
 			}
 
 			$field = $_POST[$field];
-			
+
 			if (is_array($field))
 			{
 				if ( ! in_array($value, $field))
@@ -809,7 +823,7 @@ if ( ! function_exists('set_radio'))
 			}
 
 			$field = $_POST[$field];
-			
+
 			if (is_array($field))
 			{
 				if ( ! in_array($value, $field))
@@ -919,7 +933,7 @@ if ( ! function_exists('_parse_form_attributes'))
 		}
 
 		$att = '';
-		
+
 		foreach ($default as $key => $val)
 		{
 			if ($key == 'value')
@@ -957,9 +971,14 @@ if ( ! function_exists('_attributes_to_string'))
 				$attributes .= ' method="post"';
 			}
 
+			if ($formtag == TRUE AND strpos($attributes, 'accept-charset=') === FALSE)
+			{
+				$attributes .= ' accept-charset="'.strtolower(config_item('charset')).'"';
+			}
+
 		return ' '.$attributes;
 		}
-	
+
 		if (is_object($attributes) AND count($attributes) > 0)
 		{
 			$attributes = (array)$attributes;
@@ -967,19 +986,24 @@ if ( ! function_exists('_attributes_to_string'))
 
 		if (is_array($attributes) AND count($attributes) > 0)
 		{
-		$atts = '';
+			$atts = '';
 
-		if ( ! isset($attributes['method']) AND $formtag === TRUE)
-		{
-			$atts .= ' method="post"';
-		}
+			if ( ! isset($attributes['method']) AND $formtag === TRUE)
+			{
+				$atts .= ' method="post"';
+			}
 
-		foreach ($attributes as $key => $val)
-		{
-			$atts .= ' '.$key.'="'.$val.'"';
-		}
+			if ( ! isset($attributes['accept-charset']) AND $formtag === TRUE)
+			{
+				$atts .= ' accept-charset="'.strtolower(config_item('charset')).'"';
+			}
+
+			foreach ($attributes as $key => $val)
+			{
+				$atts .= ' '.$key.'="'.$val.'"';
+			}
 
-		return $atts;
+			return $atts;
 		}
 	}
 }
diff --git a/system/helpers/html_helper.php b/system/helpers/html_helper.php
index c18a68778..68c6f5908 100644..100755
--- a/system/helpers/html_helper.php
+++ b/system/helpers/html_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -97,7 +97,7 @@ if ( ! function_exists('ol'))
  * @param	string
  * @param	mixed
  * @param	mixed
- * @param	intiger
+ * @param	integer
  * @return	string
  */
 if ( ! function_exists('_list'))
@@ -199,6 +199,12 @@ if ( ! function_exists('img'))
 			$src = array('src' => $src);
 		}
 
+		// If there is no alt attribute defined, set it to an empty string
+		if ( ! isset($src['alt']))
+		{
+			$src['alt'] = '';
+		}
+
 		$img = '<img';
 
 		foreach ($src as $k=>$v)
@@ -210,16 +216,16 @@ if ( ! function_exists('img'))
 
 				if ($index_page === TRUE)
 				{
-					$img .= ' src="'.$CI->config->site_url($v).'" ';
+					$img .= ' src="'.$CI->config->site_url($v).'"';
 				}
 				else
 				{
-					$img .= ' src="'.$CI->config->slash_item('base_url').$v.'" ';
+					$img .= ' src="'.$CI->config->slash_item('base_url').$v.'"';
 				}
 			}
 			else
 			{
-				$img .= " $k=\"$v\" ";
+				$img .= " $k=\"$v\"";
 			}
 		}
 
@@ -301,11 +307,11 @@ if ( ! function_exists('link_tag'))
 				{
 					if ($index_page === TRUE)
 					{
-						$link .= ' href="'.$CI->config->site_url($v).'" ';
+						$link .= 'href="'.$CI->config->site_url($v).'" ';
 					}
 					else
 					{
-						$link .= ' href="'.$CI->config->slash_item('base_url').$v.'" ';
+						$link .= 'href="'.$CI->config->slash_item('base_url').$v.'" ';
 					}
 				}
 				else
@@ -320,15 +326,15 @@ if ( ! function_exists('link_tag'))
 		{
 			if ( strpos($href, '://') !== FALSE)
 			{
-				$link .= ' href="'.$href.'" ';
+				$link .= 'href="'.$href.'" ';
 			}
 			elseif ($index_page === TRUE)
 			{
-				$link .= ' href="'.$CI->config->site_url($href).'" ';
+				$link .= 'href="'.$CI->config->site_url($href).'" ';
 			}
 			else
 			{
-				$link .= ' href="'.$CI->config->slash_item('base_url').$href.'" ';
+				$link .= 'href="'.$CI->config->slash_item('base_url').$href.'" ';
 			}
 
 			$link .= 'rel="'.$rel.'" type="'.$type.'" ';
@@ -382,9 +388,9 @@ if ( ! function_exists('meta'))
 		$str = '';
 		foreach ($name as $meta)
 		{
-			$type 		= ( ! isset($meta['type']) OR $meta['type'] == 'name') ? 'name' : 'http-equiv';
-			$name 		= ( ! isset($meta['name'])) 	? '' 	: $meta['name'];
-			$content	= ( ! isset($meta['content']))	? '' 	: $meta['content'];
+			$type		= ( ! isset($meta['type']) OR $meta['type'] == 'name') ? 'name' : 'http-equiv';
+			$name		= ( ! isset($meta['name']))		? ''	: $meta['name'];
+			$content	= ( ! isset($meta['content']))	? ''	: $meta['content'];
 			$newline	= ( ! isset($meta['newline']))	? "\n"	: $meta['newline'];
 
 			$str .= '<meta '.$type.'="'.$name.'" content="'.$content.'" />'.$newline;
diff --git a/system/helpers/index.html b/system/helpers/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/helpers/index.html
+++ b/system/helpers/index.html
diff --git a/system/helpers/inflector_helper.php b/system/helpers/inflector_helper.php
index ffa99cc26..4cd7486b4 100644..100755
--- a/system/helpers/inflector_helper.php
+++ b/system/helpers/inflector_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -36,14 +36,14 @@
  * @access	public
  * @param	string
  * @return	str
- */	
+ */
 if ( ! function_exists('singular'))
-{	
+{
 	function singular($str)
 	{
 		$str = strtolower(trim($str));
 		$end = substr($str, -3);
-	
+
 		if ($end == 'ies')
 		{
 			$str = substr($str, 0, strlen($str)-3).'y';
@@ -55,13 +55,13 @@ if ( ! function_exists('singular'))
 		else
 		{
 			$end = substr($str, -1);
-		
+
 			if ($end == 's')
 			{
 				$str = substr($str, 0, strlen($str)-1);
 			}
 		}
-	
+
 		return $str;
 	}
 }
@@ -77,9 +77,9 @@ if ( ! function_exists('singular'))
  * @param	string
  * @param	bool
  * @return	str
- */	
+ */
 if ( ! function_exists('plural'))
-{	
+{
 	function plural($str, $force = FALSE)
 	{
 		$str = strtolower(trim($str));
@@ -91,6 +91,17 @@ if ( ! function_exists('plural'))
 			$vowels = array('a', 'e', 'i', 'o', 'u');
 			$str = in_array(substr($str, -2, 1), $vowels) ? $str.'s' : substr($str, 0, -1).'ies';
 		}
+		elseif ($end == 'h')
+		{
+			if (substr($str, -2) == 'ch' OR substr($str, -2) == 'sh')
+			{
+				$str .= 'es';
+			}
+			else
+			{
+				$str .= 's';
+			}
+		}
 		elseif ($end == 's')
 		{
 			if ($force == TRUE)
@@ -117,11 +128,11 @@ if ( ! function_exists('plural'))
  * @access	public
  * @param	string
  * @return	str
- */	
+ */
 if ( ! function_exists('camelize'))
-{	
+{
 	function camelize($str)
-	{		
+	{
 		$str = 'x'.strtolower(trim($str));
 		$str = ucwords(preg_replace('/[\s_]+/', ' ', $str));
 		return substr(str_replace(' ', '', $str), 1);
@@ -138,7 +149,7 @@ if ( ! function_exists('camelize'))
  * @access	public
  * @param	string
  * @return	str
- */	
+ */
 if ( ! function_exists('underscore'))
 {
 	function underscore($str)
@@ -157,15 +168,15 @@ if ( ! function_exists('underscore'))
  * @access	public
  * @param	string
  * @return	str
- */	
+ */
 if ( ! function_exists('humanize'))
-{	
+{
 	function humanize($str)
 	{
 		return ucwords(preg_replace('/[_]+/', ' ', strtolower(trim($str))));
 	}
 }
-	
+
 
 /* End of file inflector_helper.php */
 /* Location: ./system/helpers/inflector_helper.php */
\ No newline at end of file
diff --git a/system/helpers/language_helper.php b/system/helpers/language_helper.php
index 442619c93..68c1a1fc6 100644..100755
--- a/system/helpers/language_helper.php
+++ b/system/helpers/language_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -36,7 +36,7 @@
  * @param	string	the language line
  * @param	string	the id of the form element
  * @return	string
- */	
+ */
 if ( ! function_exists('lang'))
 {
 	function lang($line, $id = '')
diff --git a/system/helpers/number_helper.php b/system/helpers/number_helper.php
index cf683f2a1..a2caea5e3 100644..100755
--- a/system/helpers/number_helper.php
+++ b/system/helpers/number_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -36,29 +36,29 @@
  */
 if ( ! function_exists('byte_format'))
 {
-	function byte_format($num)
+	function byte_format($num, $precision = 1)
 	{
 		$CI =& get_instance();
 		$CI->lang->load('number');
-	
-		if ($num >= 1000000000000) 
+
+		if ($num >= 1000000000000)
 		{
-			$num = round($num / 1099511627776, 1);
+			$num = round($num / 1099511627776, $precision);
 			$unit = $CI->lang->line('terabyte_abbr');
 		}
-		elseif ($num >= 1000000000) 
+		elseif ($num >= 1000000000)
 		{
-			$num = round($num / 1073741824, 1);
+			$num = round($num / 1073741824, $precision);
 			$unit = $CI->lang->line('gigabyte_abbr');
 		}
-		elseif ($num >= 1000000) 
+		elseif ($num >= 1000000)
 		{
-			$num = round($num / 1048576, 1);
+			$num = round($num / 1048576, $precision);
 			$unit = $CI->lang->line('megabyte_abbr');
 		}
-		elseif ($num >= 1000) 
+		elseif ($num >= 1000)
 		{
-			$num = round($num / 1024, 1);
+			$num = round($num / 1024, $precision);
 			$unit = $CI->lang->line('kilobyte_abbr');
 		}
 		else
@@ -67,9 +67,10 @@ if ( ! function_exists('byte_format'))
 			return number_format($num).' '.$unit;
 		}
 
-		return number_format($num, 1).' '.$unit;
-	}	
+		return number_format($num, $precision).' '.$unit;
+	}
 }
 
+
 /* End of file number_helper.php */
 /* Location: ./system/helpers/number_helper.php */
\ No newline at end of file
diff --git a/system/helpers/path_helper.php b/system/helpers/path_helper.php
index 030b6bff1..ffcf46842 100644..100755
--- a/system/helpers/path_helper.php
+++ b/system/helpers/path_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -34,7 +34,7 @@
  * @param	string
  * @param	bool	checks to see if the path exists
  * @return	string
- */	
+ */
 if ( ! function_exists('set_realpath'))
 {
 	function set_realpath($path, $check_existance = FALSE)
@@ -44,16 +44,16 @@ if ( ! function_exists('set_realpath'))
 		{
 			show_error('The path you submitted must be a local server path, not a URL');
 		}
-	
+
 		// Resolve the path
 		if (function_exists('realpath') AND @realpath($path) !== FALSE)
 		{
 			$path = realpath($path).'/';
 		}
-	
+
 		// Add a trailing slash
 		$path = preg_replace("#([^/])/*$#", "\\1/", $path);
-	
+
 		// Make sure the path exists
 		if ($check_existance == TRUE)
 		{
@@ -62,7 +62,7 @@ if ( ! function_exists('set_realpath'))
 				show_error('Not a valid path: '.$path);
 			}
 		}
-	
+
 		return $path;
 	}
 }
diff --git a/system/helpers/security_helper.php b/system/helpers/security_helper.php
index 1fc47b34b..61ebf46f9 100644..100755
--- a/system/helpers/security_helper.php
+++ b/system/helpers/security_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -34,35 +34,69 @@
  * @param	string
  * @param	bool	whether or not the content is an image file
  * @return	string
- */	
+ */
 if ( ! function_exists('xss_clean'))
 {
 	function xss_clean($str, $is_image = FALSE)
 	{
 		$CI =& get_instance();
-		return $CI->input->xss_clean($str, $is_image);
+		return $CI->security->xss_clean($str, $is_image);
 	}
 }
 
-// --------------------------------------------------------------------
+// ------------------------------------------------------------------------
 
 /**
- * Hash encode a string
+ * Sanitize Filename
  *
  * @access	public
  * @param	string
  * @return	string
- */	
+ */
+if ( ! function_exists('sanitize_filename'))
+{
+	function sanitize_filename($filename)
+	{
+		$CI =& get_instance();
+		return $CI->security->sanitize_filename($filename);
+	}
+}
+
+// --------------------------------------------------------------------
+
+/**
+ * Hash encode a string
+ *
+ * This is simply an alias for do_hash()
+ * dohash() is now deprecated
+ */
 if ( ! function_exists('dohash'))
-{	
+{
 	function dohash($str, $type = 'sha1')
 	{
+		return do_hash($str, $type);
+	}
+}
+
+// --------------------------------------------------------------------
+
+/**
+ * Hash encode a string
+ *
+ * @access	public
+ * @param	string
+ * @return	string
+ */
+if ( ! function_exists('do_hash'))
+{
+	function do_hash($str, $type = 'sha1')
+	{
 		if ($type == 'sha1')
 		{
 			if ( ! function_exists('sha1'))
 			{
 				if ( ! function_exists('mhash'))
-				{	
+				{
 					require_once(BASEPATH.'libraries/Sha1'.EXT);
 					$SH = new CI_SHA;
 					return $SH->generate($str);
@@ -75,7 +109,7 @@ if ( ! function_exists('dohash'))
 			else
 			{
 				return sha1($str);
-			}	
+			}
 		}
 		else
 		{
@@ -83,7 +117,7 @@ if ( ! function_exists('dohash'))
 		}
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -92,18 +126,18 @@ if ( ! function_exists('dohash'))
  * @access	public
  * @param	string
  * @return	string
- */	
+ */
 if ( ! function_exists('strip_image_tags'))
 {
 	function strip_image_tags($str)
 	{
 		$str = preg_replace("#<img\s+.*?src\s*=\s*[\"'](.+?)[\"'].*?\>#", "\\1", $str);
 		$str = preg_replace("#<img\s+.*?src\s*=\s*(.+?).*?\>#", "\\1", $str);
-			
+
 		return $str;
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -112,7 +146,7 @@ if ( ! function_exists('strip_image_tags'))
  * @access	public
  * @param	string
  * @return	string
- */	
+ */
 if ( ! function_exists('encode_php_tags'))
 {
 	function encode_php_tags($str)
diff --git a/system/helpers/smiley_helper.php b/system/helpers/smiley_helper.php
index 3a31be36e..80a8d79ad 100644..100755
--- a/system/helpers/smiley_helper.php
+++ b/system/helpers/smiley_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -40,12 +40,12 @@
  */
 if ( ! function_exists('smiley_js'))
 {
-	function smiley_js($alias = '', $field_id = '')
+	function smiley_js($alias = '', $field_id = '', $inline = TRUE)
 	{
 		static $do_setup = TRUE;
 
 		$r = '';
-	
+
 		if ($alias != '' && ! is_array($alias))
 		{
 			$alias = array($alias => $field_id);
@@ -54,9 +54,9 @@ if ( ! function_exists('smiley_js'))
 		if ($do_setup === TRUE)
 		{
 				$do_setup = FALSE;
-			
+
 				$m = array();
-			
+
 				if (is_array($alias))
 				{
 					foreach($alias as $name => $id)
@@ -64,23 +64,22 @@ if ( ! function_exists('smiley_js'))
 						$m[] = '"'.$name.'" : "'.$id.'"';
 					}
 				}
-			
+
 				$m = '{'.implode(',', $m).'}';
-			
+
 				$r .= <<<EOF
-			
 				var smiley_map = {$m};
 
 				function insert_smiley(smiley, field_id) {
 					var el = document.getElementById(field_id), newStart;
-				
+
 					if ( ! el && smiley_map[field_id]) {
 						el = document.getElementById(smiley_map[field_id]);
-					
+
 						if ( ! el)
 							return false;
 					}
-				
+
 					el.focus();
 					smiley = " " + smiley;
 
@@ -93,7 +92,7 @@ if ( ! function_exists('smiley_js'))
 						el.setSelectionRange(newStart, newStart);
 					}
 					else if (document.selection) {
-						document.selection.createRange().text = text;
+						document.selection.createRange().text = smiley;
 					}
 				}
 EOF;
@@ -109,7 +108,14 @@ EOF;
 			}
 		}
 
-		return '<script type="text/javascript" charset="utf-8">'.$r.'</script>';
+		if ($inline)
+		{
+			return '<script type="text/javascript" charset="utf-8">/*<![CDATA[ */'.$r.'// ]]></script>';
+		}
+		else
+		{
+			return $r;
+		}
 	}
 }
 
@@ -118,8 +124,8 @@ EOF;
 /**
  * Get Clickable Smileys
  *
- * Returns an array of image tag links that can be clicked to be inserted 
- * into a form field.  
+ * Returns an array of image tag links that can be clicked to be inserted
+ * into a form field.
  *
  * @access	public
  * @param	string	the URL to the folder containing the smiley images
@@ -130,12 +136,12 @@ if ( ! function_exists('get_clickable_smileys'))
 	function get_clickable_smileys($image_url, $alias = '', $smileys = NULL)
 	{
 		// For backward compatibility with js_insert_smiley
-		
+
 		if (is_array($alias))
 		{
 			$smileys = $alias;
 		}
-		
+
 		if ( ! is_array($smileys))
 		{
 			if (FALSE === ($smileys = _get_smiley_array()))
@@ -146,7 +152,7 @@ if ( ! function_exists('get_clickable_smileys'))
 
 		// Add a trailing slash to the file path if needed
 		$image_url = rtrim($image_url, '/').'/';
-	
+
 		$used = array();
 		foreach ($smileys as $key => $val)
 		{
@@ -158,12 +164,12 @@ if ( ! function_exists('get_clickable_smileys'))
 			{
 				continue;
 			}
-			
-			$link[] = "<a href=\"javascript:void(0);\" onClick=\"insert_smiley('".$key."', '".$alias."')\"><img src=\"".$image_url.$smileys[$key][0]."\" width=\"".$smileys[$key][1]."\" height=\"".$smileys[$key][2]."\" alt=\"".$smileys[$key][3]."\" style=\"border:0;\" /></a>";	
-	
+
+			$link[] = "<a href=\"javascript:void(0);\" onclick=\"insert_smiley('".$key."', '".$alias."')\"><img src=\"".$image_url.$smileys[$key][0]."\" width=\"".$smileys[$key][1]."\" height=\"".$smileys[$key][2]."\" alt=\"".$smileys[$key][3]."\" style=\"border:0;\" /></a>";
+
 			$used[$smileys[$key][0]] = TRUE;
 		}
-	
+
 		return $link;
 	}
 }
diff --git a/system/helpers/string_helper.php b/system/helpers/string_helper.php
index c0409dc5a..7765bba31 100644..100755
--- a/system/helpers/string_helper.php
+++ b/system/helpers/string_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -30,7 +30,7 @@
 /**
  * Trim Slashes
  *
- * Removes any leading/traling slashes from a string:
+ * Removes any leading/trailing slashes from a string:
  *
  * /this/that/theother/
  *
@@ -41,15 +41,15 @@
  * @access	public
  * @param	string
  * @return	string
- */	
+ */
 if ( ! function_exists('trim_slashes'))
 {
 	function trim_slashes($str)
 	{
 		return trim($str, '/');
-	} 
+	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -60,13 +60,13 @@ if ( ! function_exists('trim_slashes'))
  * @access	public
  * @param	mixed	string or array
  * @return	mixed	string or array
- */	
+ */
 if ( ! function_exists('strip_slashes'))
 {
 	function strip_slashes($str)
 	{
 		if (is_array($str))
-		{	
+		{
 			foreach ($str as $key => $val)
 			{
 				$str[$key] = strip_slashes($val);
@@ -76,7 +76,7 @@ if ( ! function_exists('strip_slashes'))
 		{
 			$str = stripslashes($str);
 		}
-	
+
 		return $str;
 	}
 }
@@ -91,7 +91,7 @@ if ( ! function_exists('strip_slashes'))
  * @access	public
  * @param	string
  * @return	string
- */	
+ */
 if ( ! function_exists('strip_quotes'))
 {
 	function strip_quotes($str)
@@ -110,16 +110,17 @@ if ( ! function_exists('strip_quotes'))
  * @access	public
  * @param	string
  * @return	string
- */	
+ */
 if ( ! function_exists('quotes_to_entities'))
 {
 	function quotes_to_entities($str)
-	{	
+	{
 		return str_replace(array("\'","\"","'",'"'), array("&#39;","&quot;","&#39;","&quot;"), $str);
 	}
 }
 
 // ------------------------------------------------------------------------
+
 /**
  * Reduce Double Slashes
  *
@@ -135,15 +136,15 @@ if ( ! function_exists('quotes_to_entities'))
  * @access	public
  * @param	string
  * @return	string
- */	
+ */
 if ( ! function_exists('reduce_double_slashes'))
 {
 	function reduce_double_slashes($str)
 	{
-		return preg_replace("#([^:])//+#", "\\1/", $str);
+		return preg_replace("#(^|[^:])//+#", "\\1/", $str);
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -162,7 +163,7 @@ if ( ! function_exists('reduce_double_slashes'))
  * @param	string	the character you wish to reduce
  * @param	bool	TRUE/FALSE - whether to trim the character from the beginning/end
  * @return	string
- */	
+ */
 if ( ! function_exists('reduce_multiples'))
 {
 	function reduce_multiples($str, $character = ',', $trim = FALSE)
@@ -177,7 +178,7 @@ if ( ! function_exists('reduce_multiples'))
 		return $str;
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -186,22 +187,27 @@ if ( ! function_exists('reduce_multiples'))
  * Useful for generating passwords or hashes.
  *
  * @access	public
- * @param	string 	type of random string.  Options: alunum, numeric, nozero, unique
+ * @param	string	type of random string.  basic, alpha, alunum, numeric, nozero, unique, md5, encrypt and sha1
  * @param	integer	number of characters
  * @return	string
  */
 if ( ! function_exists('random_string'))
-{	
+{
 	function random_string($type = 'alnum', $len = 8)
-	{					
+	{
 		switch($type)
 		{
+			case 'basic'	: return mt_rand();
+				break;
 			case 'alnum'	:
 			case 'numeric'	:
 			case 'nozero'	:
-		
+			case 'alpha'	:
+
 					switch ($type)
 					{
+						case 'alpha'	:	$pool = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
+							break;
 						case 'alnum'	:	$pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
 							break;
 						case 'numeric'	:	$pool = '0123456789';
@@ -216,9 +222,20 @@ if ( ! function_exists('random_string'))
 						$str .= substr($pool, mt_rand(0, strlen($pool) -1), 1);
 					}
 					return $str;
-			  break;
-			case 'unique' : return md5(uniqid(mt_rand()));
-			  break;
+				break;
+			case 'unique'	:
+			case 'md5'		:
+
+						return md5(uniqid(mt_rand()));
+				break;
+			case 'encrypt'	:
+			case 'sha1'	:
+
+						$CI =& get_instance();
+						$CI->load->helper('security');
+
+						return do_hash(uniqid(mt_rand(), TRUE), 'sha1');
+				break;
 		}
 	}
 }
@@ -233,12 +250,12 @@ if ( ! function_exists('random_string'))
  * @access	public
  * @param	string (as many parameters as needed)
  * @return	string
- */	
+ */
 if ( ! function_exists('alternator'))
 {
 	function alternator()
 	{
-		static $i;	
+		static $i;
 
 		if (func_num_args() == 0)
 		{
@@ -259,13 +276,13 @@ if ( ! function_exists('alternator'))
  * @param	string
  * @param	integer	number of repeats
  * @return	string
- */	
+ */
 if ( ! function_exists('repeater'))
 {
 	function repeater($data, $num = 1)
 	{
 		return (($num > 0) ? str_repeat($data, $num) : '');
-	} 
+	}
 }
 
 
diff --git a/system/helpers/text_helper.php b/system/helpers/text_helper.php
index 1e672937b..47e6ccc93 100644..100755
--- a/system/helpers/text_helper.php
+++ b/system/helpers/text_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -37,7 +37,7 @@
  * @param	integer
  * @param	string	the end character. Usually an ellipsis
  * @return	string
- */	
+ */
 if ( ! function_exists('word_limiter'))
 {
 	function word_limiter($str, $limit = 100, $end_char = '&#8230;')
@@ -46,18 +46,18 @@ if ( ! function_exists('word_limiter'))
 		{
 			return $str;
 		}
-	
+
 		preg_match('/^\s*+(?:\S++\s*+){1,'.(int) $limit.'}/', $str, $matches);
-			
+
 		if (strlen($str) == strlen($matches[0]))
 		{
 			$end_char = '';
 		}
-		
+
 		return rtrim($matches[0]).$end_char;
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -71,7 +71,7 @@ if ( ! function_exists('word_limiter'))
  * @param	integer
  * @param	string	the end character. Usually an ellipsis
  * @return	string
- */	
+ */
 if ( ! function_exists('character_limiter'))
 {
 	function character_limiter($str, $n = 500, $end_char = '&#8230;')
@@ -80,7 +80,7 @@ if ( ! function_exists('character_limiter'))
 		{
 			return $str;
 		}
-		
+
 		$str = preg_replace("/\s+/", ' ', str_replace(array("\r\n", "\r", "\n"), ' ', $str));
 
 		if (strlen($str) <= $n)
@@ -92,16 +92,16 @@ if ( ! function_exists('character_limiter'))
 		foreach (explode(' ', trim($str)) as $val)
 		{
 			$out .= $val.' ';
-			
+
 			if (strlen($out) >= $n)
 			{
 				$out = trim($out);
 				return (strlen($out) == strlen($str)) ? $out : $out.$end_char;
-			}		
+			}
 		}
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -112,21 +112,21 @@ if ( ! function_exists('character_limiter'))
  * @access	public
  * @param	string
  * @return	string
- */	
+ */
 if ( ! function_exists('ascii_to_entities'))
 {
 	function ascii_to_entities($str)
 	{
-	   $count	= 1;
-	   $out	= '';
-	   $temp	= array();
-	
-	   for ($i = 0, $s = strlen($str); $i < $s; $i++)
-	   {
-		   $ordinal = ord($str[$i]);
-	
-		   if ($ordinal < 128)
-		   {
+		$count	= 1;
+		$out	= '';
+		$temp	= array();
+
+		for ($i = 0, $s = strlen($str); $i < $s; $i++)
+		{
+			$ordinal = ord($str[$i]);
+
+			if ($ordinal < 128)
+			{
 				/*
 					If the $temp array has a value but we have moved on, then it seems only
 					fair that we output that entity and restart $temp before continuing. -Paul
@@ -138,31 +138,31 @@ if ( ! function_exists('ascii_to_entities'))
 				}
 
 				$out .= $str[$i];
-		   }
-		   else
-		   {
-			   if (count($temp) == 0)
-			   {
-				   $count = ($ordinal < 224) ? 2 : 3;
-			   }
-		
-			   $temp[] = $ordinal;
-		
-			   if (count($temp) == $count)
-			   {
-				   $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64);
-
-				   $out .= '&#'.$number.';';
-				   $count = 1;
-				   $temp = array();
-			   }
-		   }
-	   }
-
-	   return $out;
+			}
+			else
+			{
+				if (count($temp) == 0)
+				{
+					$count = ($ordinal < 224) ? 2 : 3;
+				}
+
+				$temp[] = $ordinal;
+
+				if (count($temp) == $count)
+				{
+					$number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64);
+
+					$out .= '&#'.$number.';';
+					$count = 1;
+					$temp = array();
+				}
+			}
+		}
+
+		return $out;
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -174,51 +174,51 @@ if ( ! function_exists('ascii_to_entities'))
  * @param	string
  * @param	bool
  * @return	string
- */	
+ */
 if ( ! function_exists('entities_to_ascii'))
 {
 	function entities_to_ascii($str, $all = TRUE)
 	{
-	   if (preg_match_all('/\&#(\d+)\;/', $str, $matches))
-	   {
-		   for ($i = 0, $s = count($matches['0']); $i < $s; $i++)
-		   {				
-			   $digits = $matches['1'][$i];
-
-			   $out = '';
-
-			   if ($digits < 128)
-			   {
-				   $out .= chr($digits);
-		
-			   }
-			   elseif ($digits < 2048)
-			   {
-				   $out .= chr(192 + (($digits - ($digits % 64)) / 64));
-				   $out .= chr(128 + ($digits % 64));
-			   }
-			   else
-			   {
-				   $out .= chr(224 + (($digits - ($digits % 4096)) / 4096));
-				   $out .= chr(128 + ((($digits % 4096) - ($digits % 64)) / 64));
-				   $out .= chr(128 + ($digits % 64));
-			   }
-
-			   $str = str_replace($matches['0'][$i], $out, $str);				
-		   }
-	   }
-
-	   if ($all)
-	   {
-		   $str = str_replace(array("&amp;", "&lt;", "&gt;", "&quot;", "&apos;", "&#45;"),
-							  array("&","<",">","\"", "'", "-"),
-							  $str);
-	   }
-
-	   return $str;
+		if (preg_match_all('/\&#(\d+)\;/', $str, $matches))
+		{
+			for ($i = 0, $s = count($matches['0']); $i < $s; $i++)
+			{
+				$digits = $matches['1'][$i];
+
+				$out = '';
+
+				if ($digits < 128)
+				{
+					$out .= chr($digits);
+
+				}
+				elseif ($digits < 2048)
+				{
+					$out .= chr(192 + (($digits - ($digits % 64)) / 64));
+					$out .= chr(128 + ($digits % 64));
+				}
+				else
+				{
+					$out .= chr(224 + (($digits - ($digits % 4096)) / 4096));
+					$out .= chr(128 + ((($digits % 4096) - ($digits % 64)) / 64));
+					$out .= chr(128 + ($digits % 64));
+				}
+
+				$str = str_replace($matches['0'][$i], $out, $str);
+			}
+		}
+
+		if ($all)
+		{
+			$str = str_replace(array("&amp;", "&lt;", "&gt;", "&quot;", "&apos;", "&#45;"),
+								array("&","<",">","\"", "'", "-"),
+								$str);
+		}
+
+		return $str;
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -233,7 +233,7 @@ if ( ! function_exists('entities_to_ascii'))
  * @param	string	the array of censoered words
  * @param	string	the optional replacement value
  * @return	string
- */	
+ */
 if ( ! function_exists('word_censor'))
 {
 	function word_censor($str, $censored, $replacement = '')
@@ -242,13 +242,13 @@ if ( ! function_exists('word_censor'))
 		{
 			return $str;
 		}
-        
-        $str = ' '.$str.' ';
+
+		$str = ' '.$str.' ';
 
 		// \w, \b and a few others do not match on a unicode character
 		// set for performance reasons. As a result words like über
 		// will not match on a word boundary. Instead, we'll assume that
-		// a bad word will be bookended by any of these characters.
+		// a bad word will be bookeneded by any of these characters.
 		$delim = '[-_\'\"`(){}<>\[\]|!?@#%&,.:;^~*+=\/ 0-9\n\r\t]';
 
 		foreach ($censored as $badword)
@@ -263,10 +263,10 @@ if ( ! function_exists('word_censor'))
 			}
 		}
 
-        return trim($str);
+		return trim($str);
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -277,26 +277,26 @@ if ( ! function_exists('word_censor'))
  * @access	public
  * @param	string	the text string
  * @return	string
- */	
+ */
 if ( ! function_exists('highlight_code'))
 {
 	function highlight_code($str)
-	{		
+	{
 		// The highlight string function encodes and highlights
 		// brackets so we need them to start raw
 		$str = str_replace(array('&lt;', '&gt;'), array('<', '>'), $str);
-	
+
 		// Replace any existing PHP tags to temporary markers so they don't accidentally
 		// break the string out of PHP, and thus, thwart the highlighting.
-	
-		$str = str_replace(array('<?', '?>', '<%', '%>', '\\', '</script>'), 
+
+		$str = str_replace(array('<?', '?>', '<%', '%>', '\\', '</script>'),
 							array('phptagopen', 'phptagclose', 'asptagopen', 'asptagclose', 'backslashtmp', 'scriptclose'), $str);
 
 		// The highlight_string function requires that the text be surrounded
 		// by PHP tags, which we will remove later
 		$str = '<?php '.$str.' ?>'; // <?
 
-		// All the magic happens here, baby!	
+		// All the magic happens here, baby!
 		$str = highlight_string($str, TRUE);
 
 		// Prior to PHP 5, the highligh function used icky <font> tags
@@ -307,20 +307,20 @@ if ( ! function_exists('highlight_code'))
 			$str = str_replace(array('<font ', '</font>'), array('<span ', '</span>'), $str);
 			$str = preg_replace('#color="(.*?)"#', 'style="color: \\1"', $str);
 		}
-		
+
 		// Remove our artificially added PHP, and the syntax highlighting that came with it
 		$str = preg_replace('/<span style="color: #([A-Z0-9]+)">&lt;\?php(&nbsp;| )/i', '<span style="color: #$1">', $str);
 		$str = preg_replace('/(<span style="color: #[A-Z0-9]+">.*?)\?&gt;<\/span>\n<\/span>\n<\/code>/is', "$1</span>\n</span>\n</code>", $str);
 		$str = preg_replace('/<span style="color: #[A-Z0-9]+"\><\/span>/i', '', $str);
-			
+
 		// Replace our markers back to PHP tags.
 		$str = str_replace(array('phptagopen', 'phptagclose', 'asptagopen', 'asptagclose', 'backslashtmp', 'scriptclose'),
 							array('&lt;?', '?&gt;', '&lt;%', '%&gt;', '\\', '&lt;/script&gt;'), $str);
-										
+
 		return $str;
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -334,7 +334,7 @@ if ( ! function_exists('highlight_code'))
  * @param	string	the openging tag to precede the phrase with
  * @param	string	the closing tag to end the phrase with
  * @return	string
- */	
+ */
 if ( ! function_exists('highlight_phrase'))
 {
 	function highlight_phrase($str, $phrase, $tag_open = '<strong>', $tag_close = '</strong>')
@@ -343,7 +343,7 @@ if ( ! function_exists('highlight_phrase'))
 		{
 			return '';
 		}
-	
+
 		if ($phrase != '')
 		{
 			return preg_replace('/('.preg_quote($phrase, '/').')/i', $tag_open."\\1".$tag_close, $str);
@@ -352,7 +352,36 @@ if ( ! function_exists('highlight_phrase'))
 		return $str;
 	}
 }
-	
+
+// ------------------------------------------------------------------------
+
+/**
+ * Convert Accented Foreign Characters to ASCII
+ *
+ * @access	public
+ * @param	string	the text string
+ * @return	string
+ */
+if ( ! function_exists('convert_accented_characters'))
+{
+	function convert_accented_characters($str)
+	{
+		if ( ! file_exists(APPPATH.'config/foreign_chars'.EXT))
+		{
+			return $str;
+		}
+
+		include APPPATH.'config/foreign_chars'.EXT;
+
+		if ( ! isset($foreign_characters))
+		{
+			return $str;
+		}
+
+		return preg_replace(array_keys($foreign_characters), array_values($foreign_characters), $str);
+	}
+}
+
 // ------------------------------------------------------------------------
 
 /**
@@ -366,7 +395,7 @@ if ( ! function_exists('highlight_phrase'))
  * @param	string	the text string
  * @param	integer	the number of characters to wrap at
  * @return	string
- */	
+ */
 if ( ! function_exists('word_wrap'))
 {
 	function word_wrap($str, $charlim = '76')
@@ -374,47 +403,47 @@ if ( ! function_exists('word_wrap'))
 		// Se the character limit
 		if ( ! is_numeric($charlim))
 			$charlim = 76;
-	
+
 		// Reduce multiple spaces
 		$str = preg_replace("| +|", " ", $str);
-	
+
 		// Standardize newlines
 		if (strpos($str, "\r") !== FALSE)
 		{
-			$str = str_replace(array("\r\n", "\r"), "\n", $str);			
+			$str = str_replace(array("\r\n", "\r"), "\n", $str);
 		}
-	
-		// If the current word is surrounded by {unwrap} tags we'll 
+
+		// If the current word is surrounded by {unwrap} tags we'll
 		// strip the entire chunk and replace it with a marker.
 		$unwrap = array();
 		if (preg_match_all("|(\{unwrap\}.+?\{/unwrap\})|s", $str, $matches))
 		{
 			for ($i = 0; $i < count($matches['0']); $i++)
 			{
-				$unwrap[] = $matches['1'][$i];				
+				$unwrap[] = $matches['1'][$i];
 				$str = str_replace($matches['1'][$i], "{{unwrapped".$i."}}", $str);
 			}
 		}
-	
-		// Use PHP's native function to do the initial wordwrap.  
-		// We set the cut flag to FALSE so that any individual words that are 
+
+		// Use PHP's native function to do the initial wordwrap.
+		// We set the cut flag to FALSE so that any individual words that are
 		// too long get left alone.  In the next step we'll deal with them.
 		$str = wordwrap($str, $charlim, "\n", FALSE);
-	
+
 		// Split the string into individual lines of text and cycle through them
 		$output = "";
-		foreach (explode("\n", $str) as $line) 
+		foreach (explode("\n", $str) as $line)
 		{
 			// Is the line within the allowed character count?
 			// If so we'll join it to the output and continue
 			if (strlen($line) <= $charlim)
 			{
-				$output .= $line."\n";			
+				$output .= $line."\n";
 				continue;
 			}
-			
+
 			$temp = '';
-			while((strlen($line)) > $charlim) 
+			while((strlen($line)) > $charlim)
 			{
 				// If the over-length word is a URL we won't wrap it
 				if (preg_match("!\[url.+\]|://|wwww.!", $line))
@@ -426,12 +455,12 @@ if ( ! function_exists('word_wrap'))
 				$temp .= substr($line, 0, $charlim-1);
 				$line = substr($line, $charlim-1);
 			}
-		
-			// If $temp contains data it means we had to split up an over-length 
+
+			// If $temp contains data it means we had to split up an over-length
 			// word into smaller chunks so we'll add it back to our current line
 			if ($temp != '')
 			{
-				$output .= $temp . "\n" . $line; 
+				$output .= $temp."\n".$line;
 			}
 			else
 			{
@@ -443,7 +472,7 @@ if ( ! function_exists('word_wrap'))
 
 		// Put our markers back
 		if (count($unwrap) > 0)
-		{	
+		{
 			foreach ($unwrap as $key => $val)
 			{
 				$output = str_replace("{{unwrapped".$key."}}", $val, $output);
@@ -453,10 +482,52 @@ if ( ! function_exists('word_wrap'))
 		// Remove the unwrap tags
 		$output = str_replace(array('{unwrap}', '{/unwrap}'), '', $output);
 
-		return $output;	
+		return $output;
 	}
 }
 
+// ------------------------------------------------------------------------
+
+/**
+ * Ellipsize String
+ *
+ * This function will strip tags from a string, split it at its max_length and ellipsize
+ *
+ * @param	string		string to ellipsize
+ * @param	integer		max length of string
+ * @param	mixed		int (1|0) or float, .5, .2, etc for position to split
+ * @param	string		ellipsis ; Default '...'
+ * @return	string		ellipsized string
+ */
+if ( ! function_exists('ellipsize'))
+{
+	function ellipsize($str, $max_length, $position = 1, $ellipsis = '&hellip;')
+	{
+		// Strip tags
+		$str = trim(strip_tags($str));
+
+		// Is the string long enough to ellipsize?
+		if (strlen($str) <= $max_length)
+		{
+			return $str;
+		}
+
+		$beg = substr($str, 0, floor($max_length * $position));
+
+		$position = ($position > 1) ? 1 : $position;
+
+		if ($position === 1)
+		{
+			$end = substr($str, 0, -($max_length - strlen($beg)));
+		}
+		else
+		{
+			$end = substr($str, -($max_length - strlen($beg)));
+		}
+
+		return $beg.$ellipsis.$end;
+	}
+}
 
 /* End of file text_helper.php */
 /* Location: ./system/helpers/text_helper.php */
\ No newline at end of file
diff --git a/system/helpers/typography_helper.php b/system/helpers/typography_helper.php
index 5621e6dd0..302bf45c5 100644..100755
--- a/system/helpers/typography_helper.php
+++ b/system/helpers/typography_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -33,19 +33,19 @@
  * @access	public
  * @param	string
  * @return	string
- */	
+ */
 if ( ! function_exists('nl2br_except_pre'))
 {
 	function nl2br_except_pre($str)
 	{
 		$CI =& get_instance();
-	
+
 		$CI->load->library('typography');
-		
+
 		return $CI->typography->nl2br_except_pre($str);
 	}
 }
-	
+
 // ------------------------------------------------------------------------
 
 /**
@@ -54,16 +54,39 @@ if ( ! function_exists('nl2br_except_pre'))
  *
  * @access	public
  * @param	string
+ * @param	bool	whether to allow javascript event handlers
  * @param	bool	whether to reduce multiple instances of double newlines to two
  * @return	string
  */
 if ( ! function_exists('auto_typography'))
 {
-	function auto_typography($str, $reduce_linebreaks = FALSE)
+	function auto_typography($str, $strip_js_event_handlers = TRUE, $reduce_linebreaks = FALSE)
 	{
-		$CI =& get_instance();	
+		$CI =& get_instance();
 		$CI->load->library('typography');
-		return $CI->typography->auto_typography($str, $reduce_linebreaks);
+		return $CI->typography->auto_typography($str, $strip_js_event_handlers, $reduce_linebreaks);
+	}
+}
+
+
+// --------------------------------------------------------------------
+
+/**
+ * HTML Entities Decode
+ *
+ * This function is a replacement for html_entity_decode()
+ *
+ * @access	public
+ * @param	string
+ * @return	string
+ */
+if ( ! function_exists('entity_decode'))
+{
+	function entity_decode($str, $charset='UTF-8')
+	{
+		$CI =& get_instance();
+		$CI->load->library('security');
+		return $CI->security->entity_decode($str, $charset);
 	}
 }
 
diff --git a/system/helpers/url_helper.php b/system/helpers/url_helper.php
index 90ea9207e..d0516cee6 100644..100755
--- a/system/helpers/url_helper.php
+++ b/system/helpers/url_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -70,7 +70,7 @@ if ( ! function_exists('base_url'))
 /**
  * Current URL
  *
- * Returns the full URL (including segments) of the page where this 
+ * Returns the full URL (including segments) of the page where this
  * function is placed
  *
  * @access	public
@@ -224,7 +224,7 @@ if ( ! function_exists('anchor_popup'))
  * @access	public
  * @param	string	the email address
  * @param	string	the link title
- * @param	mixed 	any attributes
+ * @param	mixed	any attributes
  * @return	string
  */
 if ( ! function_exists('mailto'))
@@ -254,7 +254,7 @@ if ( ! function_exists('mailto'))
  * @access	public
  * @param	string	the email address
  * @param	string	the link title
- * @param	mixed 	any attributes
+ * @param	mixed	any attributes
  * @return	string
  */
 if ( ! function_exists('safe_mailto'))
@@ -320,7 +320,7 @@ if ( ! function_exists('safe_mailto'))
 				{
 					$count = ($ordinal < 224) ? 2 : 3;
 				}
-	
+
 				$temp[] = $ordinal;
 				if (count($temp) == $count)
 				{
@@ -369,7 +369,7 @@ if ( ! function_exists('safe_mailto'))
  * @access	public
  * @param	string	the string
  * @param	string	the type: email, url, or both
- * @param	bool 	whether to create pop-up links
+ * @param	bool	whether to create pop-up links
  * @return	string
  */
 if ( ! function_exists('auto_link'))
@@ -381,7 +381,7 @@ if ( ! function_exists('auto_link'))
 			if (preg_match_all("#(^|\s|\()((http(s?)://)|(www\.))(\w+[^\s\)\<]+)#i", $str, $matches))
 			{
 				$pop = ($popup == TRUE) ? " target=\"_blank\" " : "";
-	
+
 				for ($i = 0; $i < count($matches['0']); $i++)
 				{
 					$period = '';
@@ -390,7 +390,7 @@ if ( ! function_exists('auto_link'))
 						$period = '.';
 						$matches['6'][$i] = substr($matches['6'][$i], 0, -1);
 					}
-		
+
 					$str = str_replace($matches['0'][$i],
 										$matches['1'][$i].'<a href="http'.
 										$matches['4'][$i].'://'.
@@ -416,7 +416,7 @@ if ( ! function_exists('auto_link'))
 						$period = '.';
 						$matches['3'][$i] = substr($matches['3'][$i], 0, -1);
 					}
-		
+
 					$str = str_replace($matches['0'][$i], safe_mailto($matches['1'][$i].'@'.$matches['2'][$i].'.'.$matches['3'][$i]).$period, $str);
 				}
 			}
@@ -431,7 +431,7 @@ if ( ! function_exists('auto_link'))
 /**
  * Prep URL
  *
- * Simply adds the http:// part if missing
+ * Simply adds the http:// part if no scheme is included
  *
  * @access	public
  * @param	string	the URL
@@ -446,7 +446,9 @@ if ( ! function_exists('prep_url'))
 			return '';
 		}
 
-		if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://')
+		$url = parse_url($str);
+
+		if ( ! $url OR ! isset($url['scheme']))
 		{
 			$str = 'http://'.$str;
 		}
@@ -493,7 +495,7 @@ if ( ! function_exists('url_title'))
 						$replace.'$'			=> $replace,
 						'^'.$replace			=> $replace,
 						'\.+$'					=> ''
-					  );
+					);
 
 		$str = strip_tags($str);
 
@@ -506,7 +508,7 @@ if ( ! function_exists('url_title'))
 		{
 			$str = strtolower($str);
 		}
-		
+
 		return trim(stripslashes($str));
 	}
 }
@@ -533,7 +535,7 @@ if ( ! function_exists('redirect'))
 		{
 			$uri = site_url($uri);
 		}
-		
+
 		switch($method)
 		{
 			case 'refresh'	: header("Refresh:0;url=".$uri);
diff --git a/system/helpers/xml_helper.php b/system/helpers/xml_helper.php
index 712f6777e..cdd81ad70 100644..100755
--- a/system/helpers/xml_helper.php
+++ b/system/helpers/xml_helper.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -33,30 +33,39 @@
  * @access	public
  * @param	string
  * @return	string
- */	
+ */
 if ( ! function_exists('xml_convert'))
 {
-	function xml_convert($str)
+	function xml_convert($str, $protect_all = FALSE)
 	{
 		$temp = '__TEMP_AMPERSANDS__';
 
-		// Replace entities to temporary markers so that 
+		// Replace entities to temporary markers so that
 		// ampersands won't get messed up
 		$str = preg_replace("/&#(\d+);/", "$temp\\1;", $str);
-		$str = preg_replace("/&(\w+);/",  "$temp\\1;", $str);
-	
+
+		if ($protect_all === TRUE)
+		{
+			$str = preg_replace("/&(\w+);/",  "$temp\\1;", $str);
+		}
+
 		$str = str_replace(array("&","<",">","\"", "'", "-"),
-						   array("&amp;", "&lt;", "&gt;", "&quot;", "&#39;", "&#45;"),
-						   $str);
+							array("&amp;", "&lt;", "&gt;", "&quot;", "&apos;", "&#45;"),
+							$str);
 
-		// Decode the temp markers back to entities		
+		// Decode the temp markers back to entities
 		$str = preg_replace("/$temp(\d+);/","&#\\1;",$str);
-		$str = preg_replace("/$temp(\w+);/","&\\1;", $str);
-		
+
+		if ($protect_all === TRUE)
+		{
+			$str = preg_replace("/$temp(\w+);/","&\\1;", $str);
+		}
+
 		return $str;
 	}
 }
 
+// ------------------------------------------------------------------------
 
 /* End of file xml_helper.php */
 /* Location: ./system/helpers/xml_helper.php */
\ No newline at end of file
diff --git a/system/index.html b/system/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/index.html
+++ b/system/index.html
diff --git a/system/language/english/calendar_lang.php b/system/language/english/calendar_lang.php
index e26f84930..3e6312361 100644..100755
--- a/system/language/english/calendar_lang.php
+++ b/system/language/english/calendar_lang.php
@@ -1,19 +1,19 @@
 <?php
 
 $lang['cal_su']			= "Su";
-$lang['cal_mo'] 		= "Mo";
-$lang['cal_tu'] 		= "Tu";
-$lang['cal_we'] 		= "We";
-$lang['cal_th'] 		= "Th";
-$lang['cal_fr'] 		= "Fr";
-$lang['cal_sa'] 		= "Sa";
-$lang['cal_sun'] 		= "Sun";
-$lang['cal_mon'] 		= "Mon";
-$lang['cal_tue'] 		= "Tue";
-$lang['cal_wed'] 		= "Wed";
-$lang['cal_thu'] 		= "Thu";
-$lang['cal_fri'] 		= "Fri";
-$lang['cal_sat'] 		= "Sat";
+$lang['cal_mo']			= "Mo";
+$lang['cal_tu']			= "Tu";
+$lang['cal_we']			= "We";
+$lang['cal_th']			= "Th";
+$lang['cal_fr']			= "Fr";
+$lang['cal_sa']			= "Sa";
+$lang['cal_sun']		= "Sun";
+$lang['cal_mon']		= "Mon";
+$lang['cal_tue']		= "Tue";
+$lang['cal_wed']		= "Wed";
+$lang['cal_thu']		= "Thu";
+$lang['cal_fri']		= "Fri";
+$lang['cal_sat']		= "Sat";
 $lang['cal_sunday']		= "Sunday";
 $lang['cal_monday']		= "Monday";
 $lang['cal_tuesday']	= "Tuesday";
@@ -21,30 +21,30 @@ $lang['cal_wednesday']	= "Wednesday";
 $lang['cal_thursday']	= "Thursday";
 $lang['cal_friday']		= "Friday";
 $lang['cal_saturday']	= "Saturday";
-$lang['cal_jan'] 		= "Jan";
-$lang['cal_feb'] 		= "Feb";
-$lang['cal_mar'] 		= "Mar";
-$lang['cal_apr'] 		= "Apr";
-$lang['cal_may'] 		= "May";
-$lang['cal_jun'] 		= "Jun";
-$lang['cal_jul'] 		= "Jul";
-$lang['cal_aug'] 		= "Aug";
-$lang['cal_sep'] 		= "Sep";
-$lang['cal_oct'] 		= "Oct";
-$lang['cal_nov'] 		= "Nov";
-$lang['cal_dec'] 		= "Dec";
-$lang['cal_january'] 	= "January";
-$lang['cal_february'] 	= "February";
-$lang['cal_march'] 		= "March";
+$lang['cal_jan']		= "Jan";
+$lang['cal_feb']		= "Feb";
+$lang['cal_mar']		= "Mar";
+$lang['cal_apr']		= "Apr";
+$lang['cal_may']		= "May";
+$lang['cal_jun']		= "Jun";
+$lang['cal_jul']		= "Jul";
+$lang['cal_aug']		= "Aug";
+$lang['cal_sep']		= "Sep";
+$lang['cal_oct']		= "Oct";
+$lang['cal_nov']		= "Nov";
+$lang['cal_dec']		= "Dec";
+$lang['cal_january']	= "January";
+$lang['cal_february']	= "February";
+$lang['cal_march']		= "March";
 $lang['cal_april']		= "April";
-$lang['cal_mayl'] 		= "May";
-$lang['cal_june'] 		= "June";
-$lang['cal_july'] 		= "July";
+$lang['cal_mayl']		= "May";
+$lang['cal_june']		= "June";
+$lang['cal_july']		= "July";
 $lang['cal_august']		= "August";
 $lang['cal_september']	= "September";
-$lang['cal_october'] 	= "October";
+$lang['cal_october']	= "October";
 $lang['cal_november']	= "November";
-$lang['cal_december'] 	= "December";
+$lang['cal_december']	= "December";
 
 
 /* End of file calendar_lang.php */
diff --git a/system/language/english/date_lang.php b/system/language/english/date_lang.php
index 628e55b1a..c0ace16ef 100644..100755
--- a/system/language/english/date_lang.php
+++ b/system/language/english/date_lang.php
@@ -56,5 +56,6 @@ $lang['UP1275']	= '(UTC +12:45) Chatham Islands Standard Time';
 $lang['UP13']	= '(UTC +13:00) Phoenix Islands Time, Tonga';
 $lang['UP14']	= '(UTC +14:00) Line Islands';
 
+
 /* End of file date_lang.php */
 /* Location: ./system/language/english/date_lang.php */
\ No newline at end of file
diff --git a/system/language/english/db_lang.php b/system/language/english/db_lang.php
index dc98afcad..79b82c73a 100644..100755
--- a/system/language/english/db_lang.php
+++ b/system/language/english/db_lang.php
@@ -6,8 +6,9 @@ $lang['db_unable_to_select'] = 'Unable to select the specified database: %s';
 $lang['db_unable_to_create'] = 'Unable to create the specified database: %s';
 $lang['db_invalid_query'] = 'The query you submitted is not valid.';
 $lang['db_must_set_table'] = 'You must set the database table to be used with your query.';
-$lang['db_must_set_database'] = 'You must set the database name in your database config file.';
 $lang['db_must_use_set'] = 'You must use the "set" method to update an entry.';
+$lang['db_must_use_index'] = 'You must specify an index to match on for batch updates.';
+$lang['db_batch_missing_index'] = 'One or more rows submitted for batch updating is missing the specified index.';
 $lang['db_must_use_where'] = 'Updates are not allowed unless they contain a "where" clause.';
 $lang['db_del_must_use_where'] = 'Deletes are not allowed unless they contain a "where" or "like" clause.';
 $lang['db_field_param_missing'] = 'To fetch fields requires the name of the table as a parameter.';
diff --git a/system/language/english/email_lang.php b/system/language/english/email_lang.php
index e3bd113cb..e3bd113cb 100644..100755
--- a/system/language/english/email_lang.php
+++ b/system/language/english/email_lang.php
diff --git a/system/language/english/form_validation_lang.php b/system/language/english/form_validation_lang.php
index 8a123f4bd..b01885091 100644..100755
--- a/system/language/english/form_validation_lang.php
+++ b/system/language/english/form_validation_lang.php
@@ -1,11 +1,11 @@
 <?php
 
-$lang['required'] 			= "The %s field is required.";
+$lang['required']			= "The %s field is required.";
 $lang['isset']				= "The %s field must have a value.";
 $lang['valid_email']		= "The %s field must contain a valid email address.";
-$lang['valid_emails'] 		= "The %s field must contain all valid email addresses.";
-$lang['valid_url'] 			= "The %s field must contain a valid URL.";
-$lang['valid_ip'] 			= "The %s field must contain a valid IP.";
+$lang['valid_emails']		= "The %s field must contain all valid email addresses.";
+$lang['valid_url']			= "The %s field must contain a valid URL.";
+$lang['valid_ip']			= "The %s field must contain a valid IP.";
 $lang['min_length']			= "The %s field must be at least %s characters in length.";
 $lang['max_length']			= "The %s field can not exceed %s characters in length.";
 $lang['exact_length']		= "The %s field must be exactly %s characters in length.";
@@ -15,6 +15,7 @@ $lang['alpha_dash']			= "The %s field may only contain alpha-numeric characters,
 $lang['numeric']			= "The %s field must contain only numbers.";
 $lang['is_numeric']			= "The %s field must contain only numeric characters.";
 $lang['integer']			= "The %s field must contain an integer.";
+$lang['regex_match']		= "The %s field is not in the correct format.";
 $lang['matches']			= "The %s field does not match the %s field.";
 $lang['is_natural']			= "The %s field must contain only positive numbers.";
 $lang['is_natural_no_zero']	= "The %s field must contain a number greater than zero.";
diff --git a/system/language/english/ftp_lang.php b/system/language/english/ftp_lang.php
index 42403b971..392b2b272 100644..100755
--- a/system/language/english/ftp_lang.php
+++ b/system/language/english/ftp_lang.php
@@ -7,6 +7,7 @@ $lang['ftp_unable_to_makdir']		= "Unable to create the directory you have specif
 $lang['ftp_unable_to_changedir']	= "Unable to change directories.";
 $lang['ftp_unable_to_chmod']		= "Unable to set file permissions.  Please check your path.  Note: This feature is only available in PHP 5 or higher.";
 $lang['ftp_unable_to_upload']		= "Unable to upload the specified file.  Please check your path.";
+$lang['ftp_unable_to_download']		= "Unable to download the specified file.  Please check your path.";
 $lang['ftp_no_source_file']			= "Unable to locate the source file.  Please check your path.";
 $lang['ftp_unable_to_rename']		= "Unable to rename the file.";
 $lang['ftp_unable_to_delete']		= "Unable to delete the file.";
diff --git a/system/language/english/imglib_lang.php b/system/language/english/imglib_lang.php
index 66505da07..66505da07 100644..100755
--- a/system/language/english/imglib_lang.php
+++ b/system/language/english/imglib_lang.php
diff --git a/system/language/english/index.html b/system/language/english/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/language/english/index.html
+++ b/system/language/english/index.html
diff --git a/system/language/english/number_lang.php b/system/language/english/number_lang.php
index 908580914..908580914 100644..100755
--- a/system/language/english/number_lang.php
+++ b/system/language/english/number_lang.php
diff --git a/system/language/english/profiler_lang.php b/system/language/english/profiler_lang.php
index 7c40e3f3e..b6460fb83 100644..100755
--- a/system/language/english/profiler_lang.php
+++ b/system/language/english/profiler_lang.php
@@ -1,6 +1,6 @@
 <?php
 
-$lang['profiler_database']		  = 'DATABASE';
+$lang['profiler_database']		= 'DATABASE';
 $lang['profiler_controller_info'] = 'CLASS/METHOD';
 $lang['profiler_benchmarks']	= 'BENCHMARKS';
 $lang['profiler_queries']		= 'QUERIES';
@@ -8,12 +8,15 @@ $lang['profiler_get_data']		= 'GET DATA';
 $lang['profiler_post_data']		= 'POST DATA';
 $lang['profiler_uri_string']	= 'URI STRING';
 $lang['profiler_memory_usage']	= 'MEMORY USAGE';
+$lang['profiler_config']		= 'CONFIG VARIABLES';
+$lang['profiler_headers']		= 'HTTP HEADERS';
 $lang['profiler_no_db']			= 'Database driver is not currently loaded';
 $lang['profiler_no_queries']	= 'No queries were run';
 $lang['profiler_no_post']		= 'No POST data exists';
 $lang['profiler_no_get']		= 'No GET data exists';
 $lang['profiler_no_uri']		= 'No URI data exists';
 $lang['profiler_no_memory']		= 'Memory Usage Unavailable';
+$lang['profiler_no_profiles']	= 'No Profile data - all Profiler sections have been disabled.';
 
 /* End of file profiler_lang.php */
 /* Location: ./system/language/english/profiler_lang.php */
\ No newline at end of file
diff --git a/system/language/english/scaffolding_lang.php b/system/language/english/scaffolding_lang.php
deleted file mode 100644
index c4d54d5c6..000000000
--- a/system/language/english/scaffolding_lang.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-
-$lang['scaff_view_records']		= 'View Records';
-$lang['scaff_create_record']	= 'Create New Record';
-$lang['scaff_add']				= 'Add Data';
-$lang['scaff_view']				= 'View Data';
-$lang['scaff_edit']				= 'Edit';
-$lang['scaff_delete']			= 'Delete';
-$lang['scaff_view_all']			= 'View All';
-$lang['scaff_yes']				= 'Yes';
-$lang['scaff_no']				= 'No';
-$lang['scaff_no_data']			= 'No data exists for this table yet.';
-$lang['scaff_del_confirm']		= 'Are you sure you want to delete the following row:';
-
-
-/* End of file scaffolding_lang.php */
-/* Location: ./system/language/english/scaffolding_lang.php */
\ No newline at end of file
diff --git a/system/language/english/unit_test_lang.php b/system/language/english/unit_test_lang.php
index 45b5acf55..070bcd1f2 100644..100755
--- a/system/language/english/unit_test_lang.php
+++ b/system/language/english/unit_test_lang.php
@@ -18,6 +18,7 @@ $lang['ut_array']			= 'Array';
 $lang['ut_object']			= 'Object';
 $lang['ut_resource']		= 'Resource';
 $lang['ut_null']			= 'Null';
+$lang['ut_notes']			= 'Notes';
 
 
 /* End of file unit_test_lang.php */
diff --git a/system/language/english/upload_lang.php b/system/language/english/upload_lang.php
index 4de9e9e74..4de9e9e74 100644..100755
--- a/system/language/english/upload_lang.php
+++ b/system/language/english/upload_lang.php
diff --git a/system/language/english/validation_lang.php b/system/language/english/validation_lang.php
deleted file mode 100644
index a287892fe..000000000
--- a/system/language/english/validation_lang.php
+++ /dev/null
@@ -1,24 +0,0 @@
-<?php
-
-$lang['required'] 			= "The %s field is required.";
-$lang['isset']				= "The %s field must have a value.";
-$lang['valid_email']		= "The %s field must contain a valid email address.";
-$lang['valid_emails'] 		= "The %s field must contain all valid email addresses.";
-$lang['valid_url'] 			= "The %s field must contain a valid URL.";
-$lang['valid_ip'] 			= "The %s field must contain a valid IP.";
-$lang['min_length']			= "The %s field must be at least %s characters in length.";
-$lang['max_length']			= "The %s field can not exceed %s characters in length.";
-$lang['exact_length']		= "The %s field must be exactly %s characters in length.";
-$lang['alpha']				= "The %s field may only contain alphabetical characters.";
-$lang['alpha_numeric']		= "The %s field may only contain alpha-numeric characters.";
-$lang['alpha_dash']			= "The %s field may only contain alpha-numeric characters, underscores, and dashes.";
-$lang['numeric']			= "The %s field must contain a number.";
-$lang['is_numeric']			= "The %s field must contain a number.";
-$lang['integer']			= "The %s field must contain an integer.";
-$lang['matches']			= "The %s field does not match the %s field.";
-$lang['is_natural']			= "The %s field must contain a number.";
-$lang['is_natural_no_zero']	= "The %s field must contain a number greater than zero.";
-
-
-/* End of file validation_lang.php */
-/* Location: ./system/language/english/validation_lang.php */
\ No newline at end of file
diff --git a/system/language/index.html b/system/language/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/language/index.html
+++ b/system/language/index.html
diff --git a/system/libraries/Cache/Cache.php b/system/libraries/Cache/Cache.php
new file mode 100755
index 000000000..d3f6105ea
--- /dev/null
+++ b/system/libraries/Cache/Cache.php
@@ -0,0 +1,216 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 2.0
+ * @filesource	
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter Caching Class 
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Core
+ * @author		ExpressionEngine Dev Team
+ * @link		
+ */
+class Cache extends CI_Driver_Library {
+	
+	protected $valid_drivers 	= array(
+				'cache_apc', 'cache_file', 'cache_memcached', 'cache_dummy'
+		);
+
+	protected $_cache_path		= NULL;		// Path of cache files (if file-based cache)
+	protected $_adapter			= 'dummy';
+	protected $_backup_driver;
+	
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Constructor
+	 *
+	 * @param array
+	 */
+	public function __construct($config = array())
+	{
+		if ( ! empty($config))
+		{
+			$this->_initialize($config);
+		}
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Get 
+	 *
+	 * Look for a value in the cache.  If it exists, return the data 
+	 * if not, return FALSE
+	 *
+	 * @param 	string	
+	 * @return 	mixed		value that is stored/FALSE on failure
+	 */
+	public function get($id)
+	{	
+		return $this->{$this->_adapter}->get($id);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Cache Save
+	 *
+	 * @param 	string		Unique Key
+	 * @param 	mixed		Data to store
+	 * @param 	int			Length of time (in seconds) to cache the data
+	 *
+	 * @return 	boolean		true on success/false on failure
+	 */
+	public function save($id, $data, $ttl = 60)
+	{
+		return $this->{$this->_adapter}->save($id, $data, $ttl);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Delete from Cache
+	 *
+	 * @param 	mixed		unique identifier of the item in the cache
+	 * @return 	boolean		true on success/false on failure
+	 */
+	public function delete($id)
+	{
+		return $this->{$this->_adapter}->delete($id);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Clean the cache
+	 *
+	 * @return 	boolean		false on failure/true on success
+	 */
+	public function clean()
+	{
+		return $this->{$this->_adapter}->clean();
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Cache Info
+	 *
+	 * @param 	string		user/filehits
+	 * @return 	mixed		array on success, false on failure	
+	 */
+	public function cache_info($type = 'user')
+	{
+		return $this->{$this->_adapter}->cache_info($type);
+	}
+
+	// ------------------------------------------------------------------------
+	
+	/**
+	 * Get Cache Metadata
+	 *
+	 * @param 	mixed		key to get cache metadata on
+	 * @return 	mixed		return value from child method
+	 */
+	public function get_metadata($id)
+	{
+		return $this->{$this->_adapter}->get_metadata($id);
+	}
+	
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Initialize
+	 *
+	 * Initialize class properties based on the configuration array.
+	 *
+	 * @param	array 	
+	 * @return 	void
+	 */
+	private function _initialize($config)
+	{        
+		$default_config = array(
+				'adapter',
+				'memcached'
+			);
+
+		foreach ($default_config as $key)
+		{
+			if (isset($config[$key]))
+			{
+				$param = '_'.$key;
+
+				$this->{$param} = $config[$key];
+			}
+		}
+
+		if (isset($config['backup']))
+		{
+			if (in_array('cache_'.$config['backup'], $this->valid_drivers))
+			{
+				$this->_backup_driver = $config['backup'];
+			}
+		}
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Is the requested driver supported in this environment?
+	 *
+	 * @param 	string	The driver to test.
+	 * @return 	array
+	 */
+	public function is_supported($driver)
+	{
+		static $support = array();
+
+		if ( ! isset($support[$driver]))
+		{
+			$support[$driver] = $this->{$driver}->is_supported();
+		}
+
+		return $support[$driver];
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * __get()
+	 *
+	 * @param 	child
+	 * @return 	object
+	 */
+	public function __get($child)
+	{
+		$obj = parent::__get($child);
+
+		if ( ! $this->is_supported($child))
+		{
+			$this->_adapter = $this->_backup_driver;
+		}
+
+		return $obj;
+	}
+	
+	// ------------------------------------------------------------------------
+}
+// End Class
+
+/* End of file Cache.php */
+/* Location: ./system/libraries/Cache/Cache.php */
\ No newline at end of file
diff --git a/system/libraries/Cache/drivers/Cache_apc.php b/system/libraries/Cache/drivers/Cache_apc.php
new file mode 100755
index 000000000..e82e8e1f5
--- /dev/null
+++ b/system/libraries/Cache/drivers/Cache_apc.php
@@ -0,0 +1,151 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 2.0
+ * @filesource	
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter APC Caching Class 
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Core
+ * @author		ExpressionEngine Dev Team
+ * @link		
+ */
+
+class Cache_apc extends CI_Driver {
+
+	/**
+	 * Get 
+	 *
+	 * Look for a value in the cache.  If it exists, return the data 
+	 * if not, return FALSE
+	 *
+	 * @param 	string	
+	 * @return 	mixed		value that is stored/FALSE on failure
+	 */
+	public function get($id)
+	{
+		$data = apc_fetch($id);
+
+		return (is_array($data)) ? $data[0] : FALSE;
+	}
+
+	// ------------------------------------------------------------------------	
+	
+	/**
+	 * Cache Save
+	 *
+	 * @param 	string		Unique Key
+	 * @param 	mixed		Data to store
+	 * @param 	int			Length of time (in seconds) to cache the data
+	 *
+	 * @return 	boolean		true on success/false on failure
+	 */
+	public function save($id, $data, $ttl = 60)
+	{
+		return apc_store($id, array($data, time(), $ttl), $ttl);
+	}
+	
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Delete from Cache
+	 *
+	 * @param 	mixed		unique identifier of the item in the cache
+	 * @param 	boolean		true on success/false on failure
+	 */
+	public function delete($id)
+	{
+		return apc_delete($id);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Clean the cache
+	 *
+	 * @return 	boolean		false on failure/true on success
+	 */
+	public function clean()
+	{
+		return apc_clear_cache('user');
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Cache Info
+	 *
+	 * @param 	string		user/filehits
+	 * @return 	mixed		array on success, false on failure	
+	 */
+	 public function cache_info($type = NULL)
+	 {
+		 return apc_cache_info($type);
+	 }
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Get Cache Metadata
+	 *
+	 * @param 	mixed		key to get cache metadata on
+	 * @return 	mixed		array on success/false on failure
+	 */
+	public function get_metadata($id)
+	{
+		$stored = apc_fetch($id);
+
+		if (count($stored) !== 3)
+		{
+			return FALSE;
+		}
+
+		list($value, $time, $ttl) = $stored;
+
+		return array(
+			'expire'	=> $time + $ttl,
+			'mtime'		=> $time,
+			'data'		=> $data
+		);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * is_supported()
+	 *
+	 * Check to see if APC is available on this system, bail if it isn't.
+	 */
+	public function is_supported()
+	{
+		if ( ! extension_loaded('apc') OR ! function_exists('apc_store'))
+		{
+			log_message('error', 'The APC PHP extension must be loaded to use APC Cache.');
+			return FALSE;
+		}
+		
+		return TRUE;
+	}
+
+	// ------------------------------------------------------------------------
+
+	
+}
+// End Class
+
+/* End of file Cache_apc.php */
+/* Location: ./system/libraries/Cache/drivers/Cache_apc.php */
\ No newline at end of file
diff --git a/system/libraries/Cache/drivers/Cache_dummy.php b/system/libraries/Cache/drivers/Cache_dummy.php
new file mode 100755
index 000000000..74f689241
--- /dev/null
+++ b/system/libraries/Cache/drivers/Cache_dummy.php
@@ -0,0 +1,129 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 2.0
+ * @filesource	
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter Dummy Caching Class 
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Core
+ * @author		ExpressionEngine Dev Team
+ * @link		
+ */
+
+class Cache_dummy extends CI_Driver {
+
+	/**
+	 * Get 
+	 *
+	 * Since this is the dummy class, it's always going to return FALSE.
+	 *
+	 * @param 	string	
+	 * @return 	Boolean		FALSE
+	 */
+	public function get($id)
+	{
+		return FALSE;
+	}
+
+	// ------------------------------------------------------------------------	
+	
+	/**
+	 * Cache Save
+	 *
+	 * @param 	string		Unique Key
+	 * @param 	mixed		Data to store
+	 * @param 	int			Length of time (in seconds) to cache the data
+	 *
+	 * @return 	boolean		TRUE, Simulating success
+	 */
+	public function save($id, $data, $ttl = 60)
+	{
+		return TRUE;
+	}
+	
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Delete from Cache
+	 *
+	 * @param 	mixed		unique identifier of the item in the cache
+	 * @param 	boolean		TRUE, simulating success
+	 */
+	public function delete($id)
+	{
+		return TRUE;
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Clean the cache
+	 *
+	 * @return 	boolean		TRUE, simulating success
+	 */
+	public function clean()
+	{
+		return TRUE;
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Cache Info
+	 *
+	 * @param 	string		user/filehits
+	 * @return 	boolean		FALSE
+	 */
+	 public function cache_info($type = NULL)
+	 {
+		 return FALSE;
+	 }
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Get Cache Metadata
+	 *
+	 * @param 	mixed		key to get cache metadata on
+	 * @return 	boolean		FALSE
+	 */
+	public function get_metadata($id)
+	{
+		return FALSE;
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Is this caching driver supported on the system?
+	 * Of course this one is.
+	 * 
+	 * @return TRUE;
+	 */
+	public function is_supported()
+	{
+		return TRUE;
+	}
+
+	// ------------------------------------------------------------------------
+	
+}
+// End Class
+
+/* End of file Cache_apc.php */
+/* Location: ./system/libraries/Cache/drivers/Cache_apc.php */
\ No newline at end of file
diff --git a/system/libraries/Cache/drivers/Cache_file.php b/system/libraries/Cache/drivers/Cache_file.php
new file mode 100755
index 000000000..3ed357f2f
--- /dev/null
+++ b/system/libraries/Cache/drivers/Cache_file.php
@@ -0,0 +1,196 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 2.0
+ * @filesource	
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter Memcached Caching Class 
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Core
+ * @author		ExpressionEngine Dev Team
+ * @link		
+ */
+
+class Cache_file extends CI_Driver {
+
+	protected $_cache_path;
+
+	/**
+	 * Constructor
+	 */
+	public function __construct()
+	{
+		$CI =& get_instance();
+		$CI->load->helper('file');
+		
+		$path = $CI->config->item('cache_path');
+	
+		$this->_cache_path = ($path == '') ? BASEPATH.'cache/' : $path;
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Fetch from cache
+	 *
+	 * @param 	mixed		unique key id
+	 * @return 	mixed		data on success/false on failure
+	 */
+	public function get($id)
+	{
+		if ( ! file_exists($this->_cache_path.$id))
+		{
+			return FALSE;
+		}
+		
+		$data = read_file($this->_cache_path.$id);
+		$data = unserialize($data);
+		
+		if (time() >  $data['time'] + $data['ttl'])
+		{
+			unlink($this->_cache_path.$id);
+			return FALSE;
+		}
+		
+		return $data['data'];
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Save into cache
+	 *
+	 * @param 	string		unique key
+	 * @param 	mixed		data to store
+	 * @param 	int			length of time (in seconds) the cache is valid 
+	 *						- Default is 60 seconds
+	 * @return 	boolean		true on success/false on failure
+	 */
+	public function save($id, $data, $ttl = 60)
+	{		
+		$contents = array(
+				'time'		=> time(),
+				'ttl'		=> $ttl,			
+				'data'		=> $data
+			);
+		
+		if (write_file($this->_cache_path.$id, serialize($contents)))
+		{
+			@chmod($this->_cache_path.$id, 0777);
+			return TRUE;			
+		}
+
+		return FALSE;
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Delete from Cache
+	 *
+	 * @param 	mixed		unique identifier of item in cache
+	 * @return 	boolean		true on success/false on failure
+	 */
+	public function delete($id)
+	{
+		return unlink($this->_cache_path.$id);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Clean the Cache
+	 *
+	 * @return 	boolean		false on failure/true on success
+	 */	
+	public function clean()
+	{
+		return delete_files($this->_cache_path);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Cache Info
+	 *
+	 * Not supported by file-based caching
+	 *
+	 * @param 	string	user/filehits
+	 * @return 	mixed 	FALSE
+	 */
+	public function cache_info($type = NULL)
+	{
+		return get_dir_file_info($this->_cache_path);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Get Cache Metadata
+	 *
+	 * @param 	mixed		key to get cache metadata on
+	 * @return 	mixed		FALSE on failure, array on success.
+	 */
+	public function get_metadata($id)
+	{
+		if ( ! file_exists($this->_cache_path.$id))
+		{
+			return FALSE;
+		}
+		
+		$data = read_file($this->_cache_path.$id);		
+		$data = unserialize($data);
+		
+		if (is_array($data))
+		{
+			$data = $data['data'];
+			$mtime = filemtime($this->_cache_path.$id);
+
+			if ( ! isset($data['ttl']))
+			{
+				return FALSE;
+			}
+
+			return array(
+				'expire' 	=> $mtime + $data['ttl'],
+				'mtime'		=> $mtime
+			);
+		}
+		
+		return FALSE;
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Is supported
+	 *
+	 * In the file driver, check to see that the cache directory is indeed writable
+	 * 
+	 * @return boolean
+	 */
+	public function is_supported()
+	{
+		return is_really_writable($this->_cache_path);
+	}
+
+	// ------------------------------------------------------------------------
+}
+// End Class
+
+/* End of file Cache_file.php */
+/* Location: ./system/libraries/Cache/drivers/Cache_file.php */
\ No newline at end of file
diff --git a/system/libraries/Cache/drivers/Cache_memcached.php b/system/libraries/Cache/drivers/Cache_memcached.php
new file mode 100755
index 000000000..a7efdc5de
--- /dev/null
+++ b/system/libraries/Cache/drivers/Cache_memcached.php
@@ -0,0 +1,209 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 2.0
+ * @filesource	
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter Memcached Caching Class 
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Core
+ * @author		ExpressionEngine Dev Team
+ * @link		
+ */
+
+class Cache_memcached extends CI_Driver {
+
+	private $_memcached;	// Holds the memcached object
+
+	protected $_memcache_conf 	= array(
+					'default' => array(
+						'default_host'		=> '127.0.0.1',
+						'default_port'		=> 11211,
+						'default_weight'	=> 1
+					)
+				);
+
+	// ------------------------------------------------------------------------	
+
+	/**
+	 * Fetch from cache
+	 *
+	 * @param 	mixed		unique key id
+	 * @return 	mixed		data on success/false on failure
+	 */	
+	public function get($id)
+	{	
+		$data = $this->_memcached->get($id);
+		
+		return (is_array($data)) ? $data[0] : FALSE;
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Save
+	 *
+	 * @param 	string		unique identifier
+	 * @param 	mixed		data being cached
+	 * @param 	int			time to live
+	 * @return 	boolean 	true on success, false on failure
+	 */
+	public function save($id, $data, $ttl = 60)
+	{
+		return $this->_memcached->add($id, array($data, time(), $ttl), $ttl);
+	}
+
+	// ------------------------------------------------------------------------
+	
+	/**
+	 * Delete from Cache
+	 *
+	 * @param 	mixed		key to be deleted.
+	 * @return 	boolean 	true on success, false on failure
+	 */
+	public function delete($id)
+	{
+		return $this->_memcached->delete($id);
+	}
+
+	// ------------------------------------------------------------------------
+	
+	/**
+	 * Clean the Cache
+	 *
+	 * @return 	boolean		false on failure/true on success
+	 */
+	public function clean()
+	{
+		return $this->_memcached->flush();
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Cache Info
+	 *
+	 * @param 	null		type not supported in memcached
+	 * @return 	mixed 		array on success, false on failure
+	 */
+	public function cache_info($type = NULL)
+	{
+		return $this->_memcached->getStats();
+	}
+
+	// ------------------------------------------------------------------------
+	
+	/**
+	 * Get Cache Metadata
+	 *
+	 * @param 	mixed		key to get cache metadata on
+	 * @return 	mixed		FALSE on failure, array on success.
+	 */
+	public function get_metadata($id)
+	{
+		$stored = $this->_memcached->get($id);
+
+		if (count($stored) !== 3)
+		{
+			return FALSE;
+		}
+
+		list($value, $time, $ttl) = $stored;
+
+		return array(
+			'expire'	=> $time + $ttl,
+			'mtime'		=> $time,
+			'data'		=> $data
+		);
+	}
+
+	// ------------------------------------------------------------------------
+
+	/**
+	 * Setup memcached.
+	 */
+	private function _setup_memcached()
+	{
+		// Try to load memcached server info from the config file.
+		$CI =& get_instance();
+		if ($CI->config->load('memcached', TRUE, TRUE))
+		{
+			if (is_array($CI->config->config['memcached']))
+			{
+				$this->_memcache_conf = NULL;
+
+				foreach ($CI->config->config['memcached'] as $name => $conf)
+				{
+					$this->_memcache_conf[$name] = $conf;
+				}				
+			}			
+		}
+		
+		$this->_memcached = new Memcached();
+
+		foreach ($this->_memcache_conf as $name => $cache_server)
+		{
+			if ( ! array_key_exists('hostname', $cache_server))
+			{
+				$cache_server['hostname'] = $this->_default_options['default_host'];
+			}
+	
+			if ( ! array_key_exists('port', $cache_server))
+			{
+				$cache_server['port'] = $this->_default_options['default_port'];
+			}
+	
+			if ( ! array_key_exists('weight', $cache_server))
+			{
+				$cache_server['weight'] = $this->_default_options['default_weight'];
+			}
+	
+			$this->_memcached->addServer(
+					$cache_server['hostname'], $cache_server['port'], $cache_server['weight']
+			);
+		}
+	}
+
+	// ------------------------------------------------------------------------
+
+
+	/**
+	 * Is supported
+	 *
+	 * Returns FALSE if memcached is not supported on the system.
+	 * If it is, we setup the memcached object & return TRUE
+	 */
+	public function is_supported()
+	{
+		if ( ! extension_loaded('memcached'))
+		{
+			log_message('error', 'The Memcached Extension must be loaded to use Memcached Cache.');
+			
+			return FALSE;
+		}
+		
+		$this->_setup_memcached();
+		return TRUE;
+	}
+
+	// ------------------------------------------------------------------------
+
+}
+// End Class
+
+/* End of file Cache_memcached.php */
+/* Location: ./system/libraries/Cache/drivers/Cache_memcached.php */
\ No newline at end of file
diff --git a/system/libraries/Calendar.php b/system/libraries/Calendar.php
index 275bf2451..72d228e73 100644..100755
--- a/system/libraries/Calendar.php
+++ b/system/libraries/Calendar.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -33,7 +33,7 @@ class CI_Calendar {
 	var $local_time;
 	var $template		= '';
 	var $start_day		= 'sunday';
-	var $month_type 	= 'long';
+	var $month_type		= 'long';
 	var $day_type		= 'abr';
 	var $show_next_prev	= FALSE;
 	var $next_prev_url	= '';
@@ -42,30 +42,28 @@ class CI_Calendar {
 	 * Constructor
 	 *
 	 * Loads the calendar language file and sets the default time reference
-	 *
-	 * @access	public
 	 */
-	function CI_Calendar($config = array())
-	{		
+	public function __construct($config = array())
+	{
 		$this->CI =& get_instance();
-		
+
 		if ( ! in_array('calendar_lang'.EXT, $this->CI->lang->is_loaded, TRUE))
 		{
 			$this->CI->lang->load('calendar');
 		}
 
 		$this->local_time = time();
-		
+
 		if (count($config) > 0)
 		{
 			$this->initialize($config);
 		}
-		
+
 		log_message('debug', "Calendar Class Initialized");
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Initialize the user preferences
 	 *
@@ -74,7 +72,7 @@ class CI_Calendar {
 	 * @access	public
 	 * @param	array	config preferences
 	 * @return	void
-	 */	
+	 */
 	function initialize($config = array())
 	{
 		foreach ($config as $key => $val)
@@ -85,7 +83,7 @@ class CI_Calendar {
 			}
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -102,66 +100,66 @@ class CI_Calendar {
 		// Set and validate the supplied month/year
 		if ($year == '')
 			$year  = date("Y", $this->local_time);
-			
+
 		if ($month == '')
 			$month = date("m", $this->local_time);
-			
- 		if (strlen($year) == 1)
+
+		if (strlen($year) == 1)
 			$year = '200'.$year;
-		
- 		if (strlen($year) == 2)
+
+		if (strlen($year) == 2)
 			$year = '20'.$year;
 
- 		if (strlen($month) == 1)
+		if (strlen($month) == 1)
 			$month = '0'.$month;
-		
+
 		$adjusted_date = $this->adjust_date($month, $year);
-		
+
 		$month	= $adjusted_date['month'];
 		$year	= $adjusted_date['year'];
-		
+
 		// Determine the total days in the month
 		$total_days = $this->get_total_days($month, $year);
-						
+
 		// Set the starting day of the week
 		$start_days	= array('sunday' => 0, 'monday' => 1, 'tuesday' => 2, 'wednesday' => 3, 'thursday' => 4, 'friday' => 5, 'saturday' => 6);
 		$start_day = ( ! isset($start_days[$this->start_day])) ? 0 : $start_days[$this->start_day];
-		
+
 		// Set the starting day number
 		$local_date = mktime(12, 0, 0, $month, 1, $year);
 		$date = getdate($local_date);
 		$day  = $start_day + 1 - $date["wday"];
-		
+
 		while ($day > 1)
 		{
 			$day -= 7;
 		}
-		
+
 		// Set the current month/year/day
 		// We use this to determine the "today" date
 		$cur_year	= date("Y", $this->local_time);
 		$cur_month	= date("m", $this->local_time);
 		$cur_day	= date("j", $this->local_time);
-		
+
 		$is_current_month = ($cur_year == $year AND $cur_month == $month) ? TRUE : FALSE;
-	
+
 		// Generate the template data array
 		$this->parse_template();
-	
-		// Begin building the calendar output						
+
+		// Begin building the calendar output
 		$out = $this->temp['table_open'];
-		$out .= "\n";	
+		$out .= "\n";
 
-		$out .= "\n";		
+		$out .= "\n";
 		$out .= $this->temp['heading_row_start'];
 		$out .= "\n";
-		
+
 		// "previous" month link
 		if ($this->show_next_prev == TRUE)
 		{
 			// Add a trailing slash to the  URL if needed
 			$this->next_prev_url = preg_replace("/(.+?)\/*$/", "\\1/",  $this->next_prev_url);
-		
+
 			$adjusted_date = $this->adjust_date($month - 1, $year);
 			$out .= str_replace('{previous_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_previous_cell']);
 			$out .= "\n";
@@ -169,26 +167,26 @@ class CI_Calendar {
 
 		// Heading containing the month/year
 		$colspan = ($this->show_next_prev == TRUE) ? 5 : 7;
-		
+
 		$this->temp['heading_title_cell'] = str_replace('{colspan}', $colspan, $this->temp['heading_title_cell']);
 		$this->temp['heading_title_cell'] = str_replace('{heading}', $this->get_month_name($month)."&nbsp;".$year, $this->temp['heading_title_cell']);
-		
+
 		$out .= $this->temp['heading_title_cell'];
 		$out .= "\n";
 
 		// "next" month link
 		if ($this->show_next_prev == TRUE)
-		{		
+		{
 			$adjusted_date = $this->adjust_date($month + 1, $year);
 			$out .= str_replace('{next_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_next_cell']);
 		}
 
-		$out .= "\n";		
+		$out .= "\n";
 		$out .= $this->temp['heading_row_end'];
 		$out .= "\n";
 
 		// Write the cells containing the days of the week
-		$out .= "\n";	
+		$out .= "\n";
 		$out .= $this->temp['week_row_start'];
 		$out .= "\n";
 
@@ -213,11 +211,11 @@ class CI_Calendar {
 			for ($i = 0; $i < 7; $i++)
 			{
 				$out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_start_today'] : $this->temp['cal_cell_start'];
-			
+
 				if ($day > 0 AND $day <= $total_days)
-				{ 					
+				{
 					if (isset($data[$day]))
-					{	
+					{
 						// Cells with content
 						$temp = ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_content_today'] : $this->temp['cal_cell_content'];
 						$out .= str_replace('{day}', $day, str_replace('{content}', $data[$day], $temp));
@@ -234,22 +232,22 @@ class CI_Calendar {
 					// Blank cells
 					$out .= $this->temp['cal_cell_blank'];
 				}
-				
-				$out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_end_today'] : $this->temp['cal_cell_end'];					  	
+
+				$out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_end_today'] : $this->temp['cal_cell_end'];					
 				$day++;
 			}
-			
-			$out .= "\n";		
+
+			$out .= "\n";
 			$out .= $this->temp['cal_row_end'];
-			$out .= "\n";		
+			$out .= "\n";
 		}
 
-		$out .= "\n";		
+		$out .= "\n";
 		$out .= $this->temp['table_close'];
 
 		return $out;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -272,9 +270,9 @@ class CI_Calendar {
 		{
 			$month_names = array('01' => 'cal_january', '02' => 'cal_february', '03' => 'cal_march', '04' => 'cal_april', '05' => 'cal_mayl', '06' => 'cal_june', '07' => 'cal_july', '08' => 'cal_august', '09' => 'cal_september', '10' => 'cal_october', '11' => 'cal_november', '12' => 'cal_december');
 		}
-		
+
 		$month = $month_names[$month];
-		
+
 		if ($this->CI->lang->line($month) === FALSE)
 		{
 			return ucfirst(str_replace('cal_', '', $month));
@@ -282,7 +280,7 @@ class CI_Calendar {
 
 		return $this->CI->lang->line($month);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -299,7 +297,7 @@ class CI_Calendar {
 	{
 		if ($day_type != '')
 			$this->day_type = $day_type;
-	
+
 		if ($this->day_type == 'long')
 		{
 			$day_names = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday');
@@ -312,16 +310,16 @@ class CI_Calendar {
 		{
 			$day_names = array('su', 'mo', 'tu', 'we', 'th', 'fr', 'sa');
 		}
-	
+
 		$days = array();
 		foreach ($day_names as $val)
-		{			
+		{
 			$days[] = ($this->CI->lang->line('cal_'.$val) === FALSE) ? ucfirst($val) : $this->CI->lang->line('cal_'.$val);
 		}
-	
+
 		return $days;
 	}
- 	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -362,7 +360,7 @@ class CI_Calendar {
 
 		return $date;
 	}
- 	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -393,7 +391,7 @@ class CI_Calendar {
 
 		return $days_in_month[$month - 1];
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -407,17 +405,17 @@ class CI_Calendar {
 	function default_template()
 	{
 		return  array (
-						'table_open' 				=> '<table border="0" cellpadding="4" cellspacing="0">',
-						'heading_row_start' 		=> '<tr>',
+						'table_open'				=> '<table border="0" cellpadding="4" cellspacing="0">',
+						'heading_row_start'			=> '<tr>',
 						'heading_previous_cell'		=> '<th><a href="{previous_url}">&lt;&lt;</a></th>',
-						'heading_title_cell' 		=> '<th colspan="{colspan}">{heading}</th>',
-						'heading_next_cell' 		=> '<th><a href="{next_url}">&gt;&gt;</a></th>',
-						'heading_row_end' 			=> '</tr>',
-						'week_row_start' 			=> '<tr>',
-						'week_day_cell' 			=> '<td>{week_day}</td>',
-						'week_row_end' 				=> '</tr>',
-						'cal_row_start' 			=> '<tr>',
-						'cal_cell_start' 			=> '<td>',
+						'heading_title_cell'		=> '<th colspan="{colspan}">{heading}</th>',
+						'heading_next_cell'			=> '<th><a href="{next_url}">&gt;&gt;</a></th>',
+						'heading_row_end'			=> '</tr>',
+						'week_row_start'			=> '<tr>',
+						'week_day_cell'				=> '<td>{week_day}</td>',
+						'week_row_end'				=> '</tr>',
+						'cal_row_start'				=> '<tr>',
+						'cal_cell_start'			=> '<td>',
 						'cal_cell_start_today'		=> '<td>',
 						'cal_cell_content'			=> '<a href="{content}">{day}</a>',
 						'cal_cell_content_today'	=> '<a href="{content}"><strong>{day}</strong></a>',
@@ -428,9 +426,9 @@ class CI_Calendar {
 						'cal_cell_end_today'		=> '</td>',
 						'cal_row_end'				=> '</tr>',
 						'table_close'				=> '</table>'
-					);	
+					);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -442,17 +440,17 @@ class CI_Calendar {
 	 * @access	public
 	 * @return	void
 	 */
- 	function parse_template()
- 	{
+	function parse_template()
+	{
 		$this->temp = $this->default_template();
- 	
- 		if ($this->template == '')
- 		{
- 			return;
- 		}
- 		
+
+		if ($this->template == '')
+		{
+			return;
+		}
+
 		$today = array('cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today');
-		
+
 		foreach (array('table_open', 'table_close', 'heading_row_start', 'heading_previous_cell', 'heading_title_cell', 'heading_next_cell', 'heading_row_end', 'week_row_start', 'week_day_cell', 'week_row_end', 'cal_row_start', 'cal_cell_start', 'cal_cell_content', 'cal_cell_no_content',  'cal_cell_blank', 'cal_cell_end', 'cal_row_end', 'cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today') as $val)
 		{
 			if (preg_match("/\{".$val."\}(.*?)\{\/".$val."\}/si", $this->template, $match))
@@ -466,8 +464,8 @@ class CI_Calendar {
 					$this->temp[$val] = $this->temp[str_replace('_today', '', $val)];
 				}
 			}
-		} 	
- 	}
+		}
+	}
 
 }
 
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php
index 643d2eca4..7f65b48b9 100644..100755
--- a/system/libraries/Cart.php
+++ b/system/libraries/Cart.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2006 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -29,7 +29,7 @@ class CI_Cart {
 	// These are the regular expression rules that we use to validate the product ID and product name
 	var $product_id_rules	= '\.a-z0-9_-'; // alpha-numeric, dashes, underscores, or periods
 	var $product_name_rules	= '\.\:\-_ a-z0-9'; // alpha-numeric, dashes, underscores, colons or periods
-	
+
 	// Private variables.  Do not change!
 	var $CI;
 	var $_cart_contents	= array();
@@ -39,12 +39,12 @@ class CI_Cart {
 	 * Shopping Class Constructor
 	 *
 	 * The constructor loads the Session class, used to store the shopping cart contents.
-	 */		
-	function CI_Cart($params = array())
-	{	
+	 */
+	public function __construct($params = array())
+	{
 		// Set the super object to a local variable for use later
 		$this->CI =& get_instance();
-		
+
 		// Are any config settings being passed manually?  If so, set them
 		$config = array();
 		if (count($params) > 0)
@@ -54,10 +54,10 @@ class CI_Cart {
 				$config[$key] = $val;
 			}
 		}
-		
+
 		// Load the Sessions class
 		$this->CI->load->library('session', $config);
-			
+
 		// Grab the shopping cart array from the session table, if it exists
 		if ($this->CI->session->userdata('cart_contents') !== FALSE)
 		{
@@ -66,15 +66,15 @@ class CI_Cart {
 		else
 		{
 			// No cart exists so we'll set some base values
-			$this->_cart_contents['cart_total'] = 0;		
-			$this->_cart_contents['total_items'] = 0;		
+			$this->_cart_contents['cart_total'] = 0;
+			$this->_cart_contents['total_items'] = 0;
 		}
-	
+
 		log_message('debug', "Cart Class Initialized");
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Insert items into the cart and save it to the session table
 	 *
@@ -90,15 +90,15 @@ class CI_Cart {
 			log_message('error', 'The insert method must be passed an array containing data.');
 			return FALSE;
 		}
-				
-		// You can either insert a single product using a one-dimensional array, 
+
+		// You can either insert a single product using a one-dimensional array,
 		// or multiple products using a multi-dimensional one. The way we
 		// determine the array type is by looking for a required array key named "id"
 		// at the top level. If it's not found, we will assume it's a multi-dimensional array.
-	
-		$save_cart = FALSE;		
+
+		$save_cart = FALSE;
 		if (isset($items['id']))
-		{			
+		{
 			if ($this->_insert($items) == TRUE)
 			{
 				$save_cart = TRUE;
@@ -114,7 +114,7 @@ class CI_Cart {
 					{
 						$save_cart = TRUE;
 					}
-				}			
+				}
 			}
 		}
 
@@ -129,7 +129,7 @@ class CI_Cart {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Insert
 	 *
@@ -145,9 +145,9 @@ class CI_Cart {
 			log_message('error', 'The insert method must be passed an array containing data.');
 			return FALSE;
 		}
-		
+
 		// --------------------------------------------------------------------
-	
+
 		// Does the $items array contain an id, quantity, price, and name?  These are required
 		if ( ! isset($items['id']) OR ! isset($items['qty']) OR ! isset($items['price']) OR ! isset($items['name']))
 		{
@@ -156,7 +156,7 @@ class CI_Cart {
 		}
 
 		// --------------------------------------------------------------------
-	
+
 		// Prep the quantity. It can only be a number.  Duh...
 		$items['qty'] = trim(preg_replace('/([^0-9])/i', '', $items['qty']));
 		// Trim any leading zeros
@@ -167,9 +167,9 @@ class CI_Cart {
 		{
 			return FALSE;
 		}
-				
+
 		// --------------------------------------------------------------------
-	
+
 		// Validate the product ID. It can only be alpha-numeric, dashes, underscores or periods
 		// Not totally sure we should impose this rule, but it seems prudent to standardize IDs.
 		// Note: These can be user-specified by setting the $this->product_id_rules variable.
@@ -180,7 +180,7 @@ class CI_Cart {
 		}
 
 		// --------------------------------------------------------------------
-	
+
 		// Validate the product name. It can only be alpha-numeric, dashes, underscores, colons or periods.
 		// Note: These can be user-specified by setting the $this->product_name_rules variable.
 		if ( ! preg_match("/^[".$this->product_name_rules."]+$/i", $items['name']))
@@ -195,7 +195,7 @@ class CI_Cart {
 		$items['price'] = trim(preg_replace('/([^0-9\.])/i', '', $items['price']));
 		// Trim any leading zeros
 		$items['price'] = trim(preg_replace('/(^[0]+)/i', '', $items['price']));
-		
+
 		// Is the price a valid number?
 		if ( ! is_numeric($items['price']))
 		{
@@ -204,13 +204,13 @@ class CI_Cart {
 		}
 
 		// --------------------------------------------------------------------
-		
+
 		// We now need to create a unique identifier for the item being inserted into the cart.
-		// Every time something is added to the cart it is stored in the master cart array.  
-		// Each row in the cart array, however, must have a unique index that identifies not only 
-		// a particular product, but makes it possible to store identical products with different options.  
-		// For example, what if someone buys two identical t-shirts (same product ID), but in 
-		// different sizes?  The product ID (and other attributes, like the name) will be identical for 
+		// Every time something is added to the cart it is stored in the master cart array.
+		// Each row in the cart array, however, must have a unique index that identifies not only
+		// a particular product, but makes it possible to store identical products with different options.
+		// For example, what if someone buys two identical t-shirts (same product ID), but in
+		// different sizes?  The product ID (and other attributes, like the name) will be identical for
 		// both sizes because it's the same shirt. The only difference will be the size.
 		// Internally, we need to treat identical submissions, but with different options, as a unique product.
 		// Our solution is to convert the options array to a string and MD5 it along with the product ID.
@@ -225,19 +225,19 @@ class CI_Cart {
 			// Technically, we don't need to MD5 the ID in this case, but it makes
 			// sense to standardize the format of array indexes for both conditions
 			$rowid = md5($items['id']);
-		}		
+		}
 
 		// --------------------------------------------------------------------
 
 		// Now that we have our unique "row ID", we'll add our cart items to the master array
-		
+
 		// let's unset this first, just to make sure our index contains only the data from this submission
-		unset($this->_cart_contents[$rowid]);		
-		
+		unset($this->_cart_contents[$rowid]);
+
 		// Create a new index with our new row ID
 		$this->_cart_contents[$rowid]['rowid'] = $rowid;
-	
-		// And add the new items to the cart array			
+
+		// And add the new items to the cart array
 		foreach ($items as $key => $val)
 		{
 			$this->_cart_contents[$rowid][$key] = $val;
@@ -248,11 +248,11 @@ class CI_Cart {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Update the cart
 	 *
-	 * This function permits the quantity of a given item to be changed. 
+	 * This function permits the quantity of a given item to be changed.
 	 * Typically it is called from the "view cart" page if a user makes
 	 * changes to the quantity before checkout. That array must contain the
 	 * product ID and quantity for each item.
@@ -269,8 +269,8 @@ class CI_Cart {
 		{
 			return FALSE;
 		}
-			
-		// You can either update a single product using a one-dimensional array, 
+
+		// You can either update a single product using a one-dimensional array,
 		// or multiple products using a multi-dimensional one.  The way we
 		// determine the array type is by looking for a required array key named "id".
 		// If it's not found we assume it's a multi-dimensional array
@@ -292,7 +292,7 @@ class CI_Cart {
 					{
 						$save_cart = TRUE;
 					}
-				}			
+				}
 			}
 		}
 
@@ -307,11 +307,11 @@ class CI_Cart {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Update the cart
 	 *
-	 * This function permits the quantity of a given item to be changed. 
+	 * This function permits the quantity of a given item to be changed.
 	 * Typically it is called from the "view cart" page if a user makes
 	 * changes to the quantity before checkout. That array must contain the
 	 * product ID and quantity for each item.
@@ -319,7 +319,7 @@ class CI_Cart {
 	 * @access	private
 	 * @param	array
 	 * @return	bool
-	 */	
+	 */
 	function _update($items = array())
 	{
 		// Without these array indexes there is nothing we can do
@@ -327,7 +327,7 @@ class CI_Cart {
 		{
 			return FALSE;
 		}
-		
+
 		// Prep the quantity
 		$items['qty'] = preg_replace('/([^0-9])/i', '', $items['qty']);
 
@@ -336,7 +336,7 @@ class CI_Cart {
 		{
 			return FALSE;
 		}
-		
+
 		// Is the new quantity different than what is already saved in the cart?
 		// If it's the same there's nothing to do
 		if ($this->_cart_contents[$items['rowid']]['qty'] == $items['qty'])
@@ -348,18 +348,18 @@ class CI_Cart {
 		// If the quantity is greater than zero we are updating
 		if ($items['qty'] == 0)
 		{
-			unset($this->_cart_contents[$items['rowid']]);		
+			unset($this->_cart_contents[$items['rowid']]);
 		}
 		else
 		{
 			$this->_cart_contents[$items['rowid']]['qty'] = $items['qty'];
 		}
-		
+
 		return TRUE;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Save the cart array to the session DB
 	 *
@@ -383,20 +383,20 @@ class CI_Cart {
 			}
 
 			$total += ($val['price'] * $val['qty']);
-			
+
 			// Set the subtotal
 			$this->_cart_contents[$key]['subtotal'] = ($this->_cart_contents[$key]['price'] * $this->_cart_contents[$key]['qty']);
 		}
 
 		// Set the cart total and total items.
-		$this->_cart_contents['total_items'] = count($this->_cart_contents);			
+		$this->_cart_contents['total_items'] = count($this->_cart_contents);
 		$this->_cart_contents['cart_total'] = $total;
-	
+
 		// Is our cart empty?  If so we delete it from the session
 		if (count($this->_cart_contents) <= 2)
 		{
 			$this->CI->session->unset_userdata('cart_contents');
-			
+
 			// Nothing more to do... coffee time!
 			return FALSE;
 		}
@@ -406,11 +406,11 @@ class CI_Cart {
 		$this->CI->session->set_userdata(array('cart_contents' => $this->_cart_contents));
 
 		// Woot!
-		return TRUE;	
+		return TRUE;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Cart Total
 	 *
@@ -423,7 +423,7 @@ class CI_Cart {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Total Items
 	 *
@@ -438,7 +438,7 @@ class CI_Cart {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Cart Contents
 	 *
@@ -450,16 +450,16 @@ class CI_Cart {
 	function contents()
 	{
 		$cart = $this->_cart_contents;
-		
+
 		// Remove these so they don't create a problem when showing the cart table
 		unset($cart['total_items']);
 		unset($cart['cart_total']);
-	
+
 		return $cart;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Has options
 	 *
@@ -475,12 +475,12 @@ class CI_Cart {
 		{
 			return FALSE;
 		}
-		
+
 		return TRUE;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Product options
 	 *
@@ -500,7 +500,7 @@ class CI_Cart {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Format Number
 	 *
@@ -515,15 +515,15 @@ class CI_Cart {
 		{
 			return '';
 		}
-	
+
 		// Remove anything that isn't a number or decimal point.
 		$n = trim(preg_replace('/([^0-9\.])/i', '', $n));
-	
+
 		return number_format($n, 2, '.', ',');
 	}
-		
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Destroy the cart
 	 *
@@ -535,9 +535,9 @@ class CI_Cart {
 	function destroy()
 	{
 		unset($this->_cart_contents);
-	
-		$this->_cart_contents['cart_total'] = 0;		
-		$this->_cart_contents['total_items'] = 0;		
+
+		$this->_cart_contents['cart_total'] = 0;
+		$this->_cart_contents['total_items'] = 0;
 
 		$this->CI->session->unset_userdata('cart_contents');
 	}
diff --git a/system/libraries/Controller.php b/system/libraries/Controller.php
deleted file mode 100644
index c5637c951..000000000
--- a/system/libraries/Controller.php
+++ /dev/null
@@ -1,127 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * CodeIgniter Application Controller Class
- *
- * This class object is the super class that every library in
- * CodeIgniter will be assigned to.
- *
- * @package		CodeIgniter
- * @subpackage	Libraries
- * @category	Libraries
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/general/controllers.html
- */
-class Controller extends CI_Base {
-
-	var $_ci_scaffolding	= FALSE;
-	var $_ci_scaff_table	= FALSE;
-	
-	/**
-	 * Constructor
-	 *
-	 * Calls the initialize() function
-	 */
-	function Controller()
-	{	
-		parent::CI_Base();
-		$this->_ci_initialize();
-		log_message('debug', "Controller Class Initialized");
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Initialize
-	 *
-	 * Assigns all the bases classes loaded by the front controller to
-	 * variables in this class.  Also calls the autoload routine.
-	 *
-	 * @access	private
-	 * @return	void
-	 */
-	function _ci_initialize()
-	{
-		// Assign all the class objects that were instantiated by the
-		// front controller to local class variables so that CI can be
-		// run as one big super object.
-		$classes = array(
-							'config'	=> 'Config',
-							'input'		=> 'Input',
-							'benchmark'	=> 'Benchmark',
-							'uri'		=> 'URI',
-							'output'	=> 'Output',
-							'lang'		=> 'Language',
-							'router'	=> 'Router'
-							);
-		
-		foreach ($classes as $var => $class)
-		{
-			$this->$var =& load_class($class);
-		}
-
-		// In PHP 5 the Loader class is run as a discreet
-		// class.  In PHP 4 it extends the Controller
-		if (floor(phpversion()) >= 5)
-		{
-			$this->load =& load_class('Loader');
-			$this->load->_ci_autoloader();
-		}
-		else
-		{
-			$this->_ci_autoloader();
-			
-			// sync up the objects since PHP4 was working from a copy
-			foreach (array_keys(get_object_vars($this)) as $attribute)
-			{
-				if (is_object($this->$attribute))
-				{
-					$this->load->$attribute =& $this->$attribute;
-				}
-			}
-		}
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Run Scaffolding
-	 *
-	 * @access	private
-	 * @return	void
-	 */	
-	function _ci_scaffolding()
-	{
-		if ($this->_ci_scaffolding === FALSE OR $this->_ci_scaff_table === FALSE)
-		{
-			show_404('Scaffolding unavailable');
-		}
-		
-		$method = ( ! in_array($this->uri->segment(3), array('add', 'insert', 'edit', 'update', 'view', 'delete', 'do_delete'), TRUE)) ? 'view' : $this->uri->segment(3);
-		
-		require_once(BASEPATH.'scaffolding/Scaffolding'.EXT);
-		$scaff = new Scaffolding($this->_ci_scaff_table);
-		$scaff->$method();
-	}
-
-
-}
-// END _Controller class
-
-/* End of file Controller.php */
-/* Location: ./system/libraries/Controller.php */
\ No newline at end of file
diff --git a/system/libraries/Driver.php b/system/libraries/Driver.php
new file mode 100755
index 000000000..15fc3da26
--- /dev/null
+++ b/system/libraries/Driver.php
@@ -0,0 +1,229 @@
+<?php  if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * CodeIgniter Driver Library Class
+ *
+ * This class enables you to create "Driver" libraries that add runtime ability
+ * to extend the capabilities of a class via additional driver objects
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Libraries
+ * @author		EllisLab Dev Team
+ * @link
+ */
+class CI_Driver_Library {
+
+	protected $valid_drivers	= array();
+	protected static $lib_name;
+
+	// The first time a child is used it won't exist, so we instantiate it
+	// subsequents calls will go straight to the proper child.
+	function __get($child)
+	{
+		if (! isset($this->lib_name))
+		{
+			$this->lib_name = get_class($this);
+		}
+
+		// The class will be prefixed with the parent lib
+		$child_class = $this->lib_name.'_'.$child;
+
+		if (in_array(strtolower($child_class), array_map('strtolower', $this->valid_drivers)))
+		{
+			// check and see if the driver is in a separate file
+			if ( ! class_exists($child_class))
+			{
+				// check application path first
+				foreach (array(APPPATH, BASEPATH) as $path)
+				{
+					// and check for case sensitivity of both the parent and child libs
+					foreach (array(ucfirst($this->lib_name), strtolower($this->lib_name)) as $lib)
+					{
+						// loves me some nesting!
+						foreach (array(ucfirst($child_class), strtolower($child_class)) as $class)
+						{
+							$filepath = $path.'libraries/'.$this->lib_name.'/drivers/'.$child_class.EXT;
+
+							if (file_exists($filepath))
+							{
+								include_once $filepath;
+								break;
+							}
+						}
+					}
+				}
+
+				// it's a valid driver, but the file simply can't be found
+				if ( ! class_exists($child_class))
+				{
+					log_message('error', "Unable to load the requested driver: ".$child_class);
+					show_error("Unable to load the requested driver: ".$child_class);
+				}
+			}
+
+			$obj = new $child_class;
+			$obj->decorate($this);
+			$this->$child = $obj;
+			return $this->$child;
+		}
+
+		// The requested driver isn't valid!
+		log_message('error', "Invalid driver requested: ".$child_class);
+		show_error("Invalid driver requested: ".$child_class);
+	}
+
+	// --------------------------------------------------------------------
+
+}
+// END CI_Driver_Library CLASS
+
+
+/**
+ * CodeIgniter Driver Class
+ *
+ * This class enables you to create drivers for a Library based on the Driver Library.
+ * It handles the drivers' access to the parent library
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Libraries
+ * @author		EllisLab Dev Team
+ * @link
+ */
+class CI_Driver {
+	protected $parent;
+
+	private $methods = array();
+	private $properties = array();
+
+	private static $reflections = array();
+
+	/**
+	 * Decorate
+	 *
+	 * Decorates the child with the parent driver lib's methods and properties
+	 *
+	 * @param	object
+	 * @return	void
+	 */
+	public function decorate($parent)
+	{
+		$this->parent = $parent;
+
+		// Lock down attributes to what is defined in the class
+		// and speed up references in magic methods
+
+		$class_name = get_class($parent);
+
+		if ( ! isset(self::$reflections[$class_name]))
+		{
+			$r = new ReflectionObject($parent);
+
+			foreach ($r->getMethods() as $method)
+			{
+				if ($method->isPublic())
+				{
+					$this->methods[] = $method->getName();
+				}
+			}
+
+			foreach($r->getProperties() as $prop)
+			{
+				if ($prop->isPublic())
+				{
+					$this->properties[] = $prop->getName();
+				}
+			}
+
+			self::$reflections[$class_name] = array($this->methods, $this->properties);
+		}
+		else
+		{
+			list($this->methods, $this->properties) = self::$reflections[$class_name];
+		}
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * __call magic method
+	 *
+	 * Handles access to the parent driver library's methods
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	array
+	 * @return	mixed
+	 */
+	public function __call($method, $args = array())
+	{
+		if (in_array($method, $this->methods))
+		{
+			return call_user_func_array(array($this->parent, $method), $args);
+		}
+
+		$trace = debug_backtrace();
+		_exception_handler(E_ERROR, "No such method '{$method}'", $trace[1]['file'], $trace[1]['line']);
+		exit;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * __get magic method
+	 *
+	 * Handles reading of the parent driver library's properties
+	 *
+	 * @param	string
+	 * @return	mixed
+	 */
+	public function __get($var)
+	{
+		if (in_array($var, $this->properties))
+		{
+			return $this->parent->$var;
+		}
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * __set magic method
+	 *
+	 * Handles writing to the parent driver library's properties
+	 *
+	 * @param	string
+	 * @param	array
+	 * @return	mixed
+	 */
+	public function __set($var, $val)
+	{
+		if (in_array($var, $this->properties))
+		{
+			$this->parent->$var = $val;
+		}
+	}
+
+	// --------------------------------------------------------------------
+
+}
+// END CI_Driver CLASS
+
+/* End of file Driver.php */
+/* Location: ./system/libraries/Driver.php */
\ No newline at end of file
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index d0f2ea9a5..e5af38f45 100644..100755
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -82,7 +82,7 @@ class CI_Email {
 	 *
 	 * The constructor can be passed an array of config values
 	 */
-	function CI_Email($config = array())
+	public function __construct($config = array())
 	{
 		if (count($config) > 0)
 		{
@@ -106,9 +106,8 @@ class CI_Email {
 	 * @param	array
 	 * @return	void
 	 */
-	function initialize($config = array())
+	public function initialize($config = array())
 	{
-		$this->clear();
 		foreach ($config as $key => $val)
 		{
 			if (isset($this->$key))
@@ -125,11 +124,14 @@ class CI_Email {
 				}
 			}
 		}
+		$this->clear();
 
 		$this->_smtp_auth = ($this->smtp_user == '' AND $this->smtp_pass == '') ? FALSE : TRUE;
 		$this->_safe_mode = ((boolean)@ini_get("safe_mode") === FALSE) ? FALSE : TRUE;
+
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -138,7 +140,7 @@ class CI_Email {
 	 * @access	public
 	 * @return	void
 	 */
-	function clear($clear_attachments = FALSE)
+	public function clear($clear_attachments = FALSE)
 	{
 		$this->_subject		= "";
 		$this->_body		= "";
@@ -146,6 +148,8 @@ class CI_Email {
 		$this->_header_str	= "";
 		$this->_replyto_flag = FALSE;
 		$this->_recipients	= array();
+		$this->_cc_array	= array();
+		$this->_bcc_array	= array();
 		$this->_headers		= array();
 		$this->_debug_msg	= array();
 
@@ -158,8 +162,10 @@ class CI_Email {
 			$this->_attach_type = array();
 			$this->_attach_disp = array();
 		}
+
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -170,7 +176,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function from($from, $name = '')
+	public function from($from, $name = '')
 	{
 		if (preg_match( '/\<(.*)\>/', $from, $match))
 		{
@@ -199,8 +205,10 @@ class CI_Email {
 
 		$this->_set_header('From', $name.' <'.$from.'>');
 		$this->_set_header('Return-Path', '<'.$from.'>');
+
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -211,7 +219,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function reply_to($replyto, $name = '')
+	public function reply_to($replyto, $name = '')
 	{
 		if (preg_match( '/\<(.*)\>/', $replyto, $match))
 		{
@@ -235,8 +243,10 @@ class CI_Email {
 
 		$this->_set_header('Reply-To', $name.' <'.$replyto.'>');
 		$this->_replyto_flag = TRUE;
+
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -246,7 +256,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function to($to)
+	public function to($to)
 	{
 		$to = $this->_str_to_array($to);
 		$to = $this->clean_email($to);
@@ -263,15 +273,18 @@ class CI_Email {
 
 		switch ($this->_get_protocol())
 		{
-			case 'smtp'		: $this->_recipients = $to;
-			break;
-			case 'sendmail'	: $this->_recipients = implode(", ", $to);
+			case 'smtp'		:
+				$this->_recipients = $to;
 			break;
-			case 'mail'		: $this->_recipients = implode(", ", $to);
+			case 'sendmail'	:
+			case 'mail'		:
+				$this->_recipients = implode(", ", $to);
 			break;
 		}
+
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -281,7 +294,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function cc($cc)
+	public function cc($cc)
 	{
 		$cc = $this->_str_to_array($cc);
 		$cc = $this->clean_email($cc);
@@ -297,8 +310,10 @@ class CI_Email {
 		{
 			$this->_cc_array = $cc;
 		}
+
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -309,7 +324,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function bcc($bcc, $limit = '')
+	public function bcc($bcc, $limit = '')
 	{
 		if ($limit != '' && is_numeric($limit))
 		{
@@ -333,8 +348,10 @@ class CI_Email {
 		{
 			$this->_set_header('Bcc', implode(", ", $bcc));
 		}
+
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -344,12 +361,13 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function subject($subject)
+	public function subject($subject)
 	{
 		$subject = $this->_prep_q_encoding($subject);
 		$this->_set_header('Subject', $subject);
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -359,11 +377,12 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function message($body)
+	public function message($body)
 	{
 		$this->_body = stripslashes(rtrim(str_replace("\r", "", $body)));
+		return $this;
 	}
- 
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -373,11 +392,12 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function attach($filename, $disposition = 'attachment')
+	public function attach($filename, $disposition = 'attachment')
 	{
 		$this->_attach_name[] = $filename;
 		$this->_attach_type[] = $this->_mime_types(next(explode('.', basename($filename))));
 		$this->_attach_disp[] = $disposition; // Can also be 'inline'  Not sure if it matters
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
@@ -390,11 +410,11 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function _set_header($header, $value)
+	private function _set_header($header, $value)
 	{
 		$this->_headers[$header] = $value;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -404,7 +424,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	array
 	 */
-	function _str_to_array($email)
+	private function _str_to_array($email)
 	{
 		if ( ! is_array($email))
 		{
@@ -420,7 +440,7 @@ class CI_Email {
 		}
 		return $email;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -430,11 +450,12 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function set_alt_message($str = '')
+	public function set_alt_message($str = '')
 	{
 		$this->alt_message = ($str == '') ? '' : $str;
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -444,11 +465,12 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function set_mailtype($type = 'text')
+	public function set_mailtype($type = 'text')
 	{
 		$this->mailtype = ($type == 'html') ? 'html' : 'text';
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -458,11 +480,12 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function set_wordwrap($wordwrap = TRUE)
+	public function set_wordwrap($wordwrap = TRUE)
 	{
 		$this->wordwrap = ($wordwrap === FALSE) ? FALSE : TRUE;
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -472,11 +495,12 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function set_protocol($protocol = 'mail')
+	public function set_protocol($protocol = 'mail')
 	{
 		$this->protocol = ( ! in_array($protocol, $this->_protocols, TRUE)) ? 'mail' : strtolower($protocol);
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -486,7 +510,7 @@ class CI_Email {
 	 * @param	integer
 	 * @return	void
 	 */
-	function set_priority($n = 3)
+	public function set_priority($n = 3)
 	{
 		if ( ! is_numeric($n))
 		{
@@ -501,8 +525,9 @@ class CI_Email {
 		}
 
 		$this->priority = $n;
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -512,7 +537,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function set_newline($newline = "\n")
+	public function set_newline($newline = "\n")
 	{
 		if ($newline != "\n" AND $newline != "\r\n" AND $newline != "\r")
 		{
@@ -521,8 +546,10 @@ class CI_Email {
 		}
 
 		$this->newline	= $newline;
+
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -532,7 +559,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	function set_crlf($crlf = "\n")
+	public function set_crlf($crlf = "\n")
 	{
 		if ($crlf != "\n" AND $crlf != "\r\n" AND $crlf != "\r")
 		{
@@ -541,8 +568,10 @@ class CI_Email {
 		}
 
 		$this->crlf	= $crlf;
+
+		return $this;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -551,12 +580,12 @@ class CI_Email {
 	 * @access	private
 	 * @return	void
 	 */
-	function _set_boundaries()
+	private function _set_boundaries()
 	{
 		$this->_alt_boundary = "B_ALT_".uniqid(''); // multipart/alternative
 		$this->_atc_boundary = "B_ATC_".uniqid(''); // attachment boundary
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -565,7 +594,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	string
 	 */
-	function _get_message_id()
+	private function _get_message_id()
 	{
 		$from = $this->_headers['Return-Path'];
 		$from = str_replace(">", "", $from);
@@ -573,7 +602,7 @@ class CI_Email {
 
 		return  "<".uniqid('').strstr($from, '@').">";
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -583,7 +612,7 @@ class CI_Email {
 	 * @param	bool
 	 * @return	string
 	 */
-	function _get_protocol($return = TRUE)
+	private function _get_protocol($return = TRUE)
 	{
 		$this->protocol = strtolower($this->protocol);
 		$this->protocol = ( ! in_array($this->protocol, $this->_protocols, TRUE)) ? 'mail' : $this->protocol;
@@ -593,7 +622,7 @@ class CI_Email {
 			return $this->protocol;
 		}
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -603,7 +632,7 @@ class CI_Email {
 	 * @param	bool
 	 * @return	string
 	 */
-	function _get_encoding($return = TRUE)
+	private function _get_encoding($return = TRUE)
 	{
 		$this->_encoding = ( ! in_array($this->_encoding, $this->_bit_depths)) ? '8bit' : $this->_encoding;
 
@@ -629,7 +658,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	string
 	 */
-	function _get_content_type()
+	private function _get_content_type()
 	{
 		if	($this->mailtype == 'html' &&  count($this->_attach_name) == 0)
 		{
@@ -648,7 +677,7 @@ class CI_Email {
 			return 'plain';
 		}
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -657,7 +686,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	string
 	 */
-	function _set_date()
+	private function _set_date()
 	{
 		$timezone = date("Z");
 		$operator = (strncmp($timezone, '-', 1) == 0) ? '-' : '+';
@@ -666,7 +695,7 @@ class CI_Email {
 
 		return sprintf("%s %s%04d", date("D, j M Y H:i:s"), $operator, $timezone);
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -675,11 +704,11 @@ class CI_Email {
 	 * @access	private
 	 * @return	string
 	 */
-	function _get_mime_message()
+	private function _get_mime_message()
 	{
 		return "This is a multi-part message in MIME format.".$this->newline."Your email application may not support this format.";
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -689,7 +718,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	bool
 	 */
-	function validate_email($email)
+	public function validate_email($email)
 	{
 		if ( ! is_array($email))
 		{
@@ -708,7 +737,7 @@ class CI_Email {
 
 		return TRUE;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -718,11 +747,11 @@ class CI_Email {
 	 * @param	string
 	 * @return	bool
 	 */
-	function valid_email($address)
+	public function valid_email($address)
 	{
 		return ( ! preg_match("/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $address)) ? FALSE : TRUE;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -732,17 +761,17 @@ class CI_Email {
 	 * @param	string
 	 * @return	string
 	 */
-	function clean_email($email)
+	public function clean_email($email)
 	{
 		if ( ! is_array($email))
 		{
 			if (preg_match('/\<(.*)\>/', $email, $match))
 			{
-		   		return $match['1'];
+				return $match['1'];
 			}
-		   	else
+			else
 			{
-		   		return $email;
+				return $email;
 			}
 		}
 
@@ -752,23 +781,23 @@ class CI_Email {
 		{
 			if (preg_match( '/\<(.*)\>/', $addy, $match))
 			{
-		   		$clean_email[] = $match['1'];
+				$clean_email[] = $match['1'];
 			}
-		   	else
+			else
 			{
-		   		$clean_email[] = $addy;
+				$clean_email[] = $addy;
 			}
 		}
 
 		return $clean_email;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
 	 * Build alternative plain text message
 	 *
-	 * This function provides the raw message for use
+	 * This public function provides the raw message for use
 	 * in plain-text headers of HTML-formatted emails.
 	 * If the user hasn't specified his own alternative message
 	 * it creates one by stripping the HTML
@@ -776,7 +805,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	string
 	 */
-	function _get_alt_message()
+	private function _get_alt_message()
 	{
 		if ($this->alt_message != "")
 		{
@@ -802,7 +831,7 @@ class CI_Email {
 
 			for ($x = 1; $x <= $i; $x ++)
 			{
-				 $n .= "\n";
+				$n .= "\n";
 			}
 
 			$body = str_replace($n, "\n\n", $body);
@@ -810,7 +839,7 @@ class CI_Email {
 
 		return $this->word_wrap($body, '76');
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -821,7 +850,7 @@ class CI_Email {
 	 * @param	integer
 	 * @return	string
 	 */
-	function word_wrap($str, $charlim = '')
+	public function word_wrap($str, $charlim = '')
 	{
 		// Se the character limit
 		if ($charlim == '')
@@ -850,7 +879,7 @@ class CI_Email {
 			}
 		}
 
-		// Use PHP's native function to do the initial wordwrap.
+		// Use PHP's native public function to do the initial wordwrap.
 		// We set the cut flag to FALSE so that any individual words that are
 		// too long get left alone.  In the next step we'll deal with them.
 		$str = wordwrap($str, $charlim, "\n", FALSE);
@@ -906,7 +935,7 @@ class CI_Email {
 
 		return $output;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -916,7 +945,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	string
 	 */
-	function _build_headers()
+	private function _build_headers()
 	{
 		$this->_set_header('X-Sender', $this->clean_email($this->_headers['From']));
 		$this->_set_header('X-Mailer', $this->useragent);
@@ -924,7 +953,7 @@ class CI_Email {
 		$this->_set_header('Message-ID', $this->_get_message_id());
 		$this->_set_header('Mime-Version', '1.0');
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -933,7 +962,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	void
 	 */
-	function _write_headers()
+	private function _write_headers()
 	{
 		if ($this->protocol == 'mail')
 		{
@@ -959,7 +988,7 @@ class CI_Email {
 			$this->_header_str = rtrim($this->_header_str);
 		}
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -968,7 +997,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	void
 	 */
-	function _build_message()
+	private function _build_message()
 	{
 		if ($this->wordwrap === TRUE  AND  $this->mailtype != 'html')
 		{
@@ -979,6 +1008,7 @@ class CI_Email {
 		$this->_write_headers();
 
 		$hdr = ($this->_get_protocol() == 'mail') ? $this->newline : '';
+		$body = '';
 
 		switch ($this->_get_content_type())
 		{
@@ -991,13 +1021,12 @@ class CI_Email {
 				{
 					$this->_header_str .= $hdr;
 					$this->_finalbody = $this->_body;
-
-					return;
+				}
+				else
+				{
+					$this->_finalbody = $hdr . $this->newline . $this->newline . $this->_body;
 				}
 
-				$hdr .= $this->newline . $this->newline . $this->_body;
-
-				$this->_finalbody = $hdr;
 				return;
 
 			break;
@@ -1011,93 +1040,81 @@ class CI_Email {
 				else
 				{
 					$hdr .= "Content-Type: multipart/alternative; boundary=\"" . $this->_alt_boundary . "\"" . $this->newline . $this->newline;
-					$hdr .= $this->_get_mime_message() . $this->newline . $this->newline;
-					$hdr .= "--" . $this->_alt_boundary . $this->newline;
 
-					$hdr .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;
-					$hdr .= "Content-Transfer-Encoding: " . $this->_get_encoding() . $this->newline . $this->newline;
-					$hdr .= $this->_get_alt_message() . $this->newline . $this->newline . "--" . $this->_alt_boundary . $this->newline;
+					$body .= $this->_get_mime_message() . $this->newline . $this->newline;
+					$body .= "--" . $this->_alt_boundary . $this->newline;
 
-					$hdr .= "Content-Type: text/html; charset=" . $this->charset . $this->newline;
-					$hdr .= "Content-Transfer-Encoding: quoted-printable";
+					$body .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;
+					$body .= "Content-Transfer-Encoding: " . $this->_get_encoding() . $this->newline . $this->newline;
+					$body .= $this->_get_alt_message() . $this->newline . $this->newline . "--" . $this->_alt_boundary . $this->newline;
+
+					$body .= "Content-Type: text/html; charset=" . $this->charset . $this->newline;
+					$body .= "Content-Transfer-Encoding: quoted-printable" . $this->newline . $this->newline;
 				}
 
-				$this->_body = $this->_prep_quoted_printable($this->_body);
+				$this->_finalbody = $body . $this->_prep_quoted_printable($this->_body) . $this->newline . $this->newline;
+
 
 				if ($this->_get_protocol() == 'mail')
 				{
 					$this->_header_str .= $hdr;
-					$this->_finalbody = $this->_body . $this->newline . $this->newline;
-
-					if ($this->send_multipart !== FALSE)
-					{
-						$this->_finalbody .= "--" . $this->_alt_boundary . "--";
-					}
-
-					return;
+				}
+				else
+				{
+					$this->_finalbody = $hdr . $this->_finalbody;
 				}
 
-				$hdr .= $this->newline . $this->newline;
-				$hdr .= $this->_body . $this->newline . $this->newline;
 
 				if ($this->send_multipart !== FALSE)
 				{
-					$hdr .= "--" . $this->_alt_boundary . "--";
+					$this->_finalbody .= "--" . $this->_alt_boundary . "--";
 				}
 
-				$this->_finalbody = $hdr;
 				return;
 
 			break;
 			case 'plain-attach' :
 
 				$hdr .= "Content-Type: multipart/".$this->multipart."; boundary=\"" . $this->_atc_boundary."\"" . $this->newline . $this->newline;
-				$hdr .= $this->_get_mime_message() . $this->newline . $this->newline;
-				$hdr .= "--" . $this->_atc_boundary . $this->newline;
-
-				$hdr .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;
-				$hdr .= "Content-Transfer-Encoding: " . $this->_get_encoding();
 
 				if ($this->_get_protocol() == 'mail')
 				{
 					$this->_header_str .= $hdr;
-
-					$body  = $this->_body . $this->newline . $this->newline;
 				}
 
-				$hdr .= $this->newline . $this->newline;
-				$hdr .= $this->_body . $this->newline . $this->newline;
+				$body .= $this->_get_mime_message() . $this->newline . $this->newline;
+				$body .= "--" . $this->_atc_boundary . $this->newline;
+
+				$body .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;
+				$body .= "Content-Transfer-Encoding: " . $this->_get_encoding() . $this->newline . $this->newline;
+
+				$body .= $this->_body . $this->newline . $this->newline;
 
 			break;
 			case 'html-attach' :
 
 				$hdr .= "Content-Type: multipart/".$this->multipart."; boundary=\"" . $this->_atc_boundary."\"" . $this->newline . $this->newline;
-				$hdr .= $this->_get_mime_message() . $this->newline . $this->newline;
-				$hdr .= "--" . $this->_atc_boundary . $this->newline;
-
-				$hdr .= "Content-Type: multipart/alternative; boundary=\"" . $this->_alt_boundary . "\"" . $this->newline .$this->newline;
-				$hdr .= "--" . $this->_alt_boundary . $this->newline;
-
-				$hdr .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;
-				$hdr .= "Content-Transfer-Encoding: " . $this->_get_encoding() . $this->newline . $this->newline;
-				$hdr .= $this->_get_alt_message() . $this->newline . $this->newline . "--" . $this->_alt_boundary . $this->newline;
-
-				$hdr .= "Content-Type: text/html; charset=" . $this->charset . $this->newline;
-				$hdr .= "Content-Transfer-Encoding: quoted-printable";
-
-				$this->_body = $this->_prep_quoted_printable($this->_body);
 
 				if ($this->_get_protocol() == 'mail')
 				{
 					$this->_header_str .= $hdr;
-
-					$body  = $this->_body . $this->newline . $this->newline;
-					$body .= "--" . $this->_alt_boundary . "--" . $this->newline . $this->newline;
 				}
 
-				$hdr .= $this->newline . $this->newline;
-				$hdr .= $this->_body . $this->newline . $this->newline;
-				$hdr .= "--" . $this->_alt_boundary . "--" . $this->newline . $this->newline;
+				$body .= $this->_get_mime_message() . $this->newline . $this->newline;
+				$body .= "--" . $this->_atc_boundary . $this->newline;
+
+				$body .= "Content-Type: multipart/alternative; boundary=\"" . $this->_alt_boundary . "\"" . $this->newline .$this->newline;
+				$body .= "--" . $this->_alt_boundary . $this->newline;
+
+				$body .= "Content-Type: text/plain; charset=" . $this->charset . $this->newline;
+				$body .= "Content-Transfer-Encoding: " . $this->_get_encoding() . $this->newline . $this->newline;
+				$body .= $this->_get_alt_message() . $this->newline . $this->newline . "--" . $this->_alt_boundary . $this->newline;
+
+				$body .= "Content-Type: text/html; charset=" . $this->charset . $this->newline;
+				$body .= "Content-Transfer-Encoding: quoted-printable" . $this->newline . $this->newline;
+
+				$body .= $this->_prep_quoted_printable($this->_body) . $this->newline . $this->newline;
+				$body .= "--" . $this->_alt_boundary . "--" . $this->newline . $this->newline;
 
 			break;
 		}
@@ -1137,18 +1154,21 @@ class CI_Email {
 			fclose($fp);
 		}
 
+		$body .= implode($this->newline, $attachment).$this->newline."--".$this->_atc_boundary."--";
+
+
 		if ($this->_get_protocol() == 'mail')
 		{
-			$this->_finalbody = $body . implode($this->newline, $attachment).$this->newline."--".$this->_atc_boundary."--";
-
-			return;
+			$this->_finalbody = $body;
+		}
+		else
+		{
+			$this->_finalbody = $hdr . $body;
 		}
-
-		$this->_finalbody = $hdr.implode($this->newline, $attachment).$this->newline."--".$this->_atc_boundary."--";
 
 		return;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1162,7 +1182,7 @@ class CI_Email {
 	 * @param	integer
 	 * @return	string
 	 */
-	function _prep_quoted_printable($str, $charlim = '')
+	private function _prep_quoted_printable($str, $charlim = '')
 	{
 		// Set the character limit
 		// Don't allow over 76, as that will make servers and MUAs barf
@@ -1243,7 +1263,7 @@ class CI_Email {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Prep Q Encoding
 	 *
@@ -1255,7 +1275,7 @@ class CI_Email {
 	 * @param	bool	// set to TRUE for processing From: headers
 	 * @return	str
 	 */
-	function _prep_q_encoding($str, $from = FALSE)
+	private function _prep_q_encoding($str, $from = FALSE)
 	{
 		$str = str_replace(array("\r", "\n"), array('', ''), $str);
 
@@ -1315,14 +1335,14 @@ class CI_Email {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Send Email
 	 *
 	 * @access	public
 	 * @return	bool
 	 */
-	function send()
+	public function send()
 	{
 		if ($this->_replyto_flag == FALSE)
 		{
@@ -1356,7 +1376,7 @@ class CI_Email {
 			return TRUE;
 		}
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1365,7 +1385,7 @@ class CI_Email {
 	 * @access	public
 	 * @return	bool
 	 */
-	function batch_bcc_send()
+	public function batch_bcc_send()
 	{
 		$float = $this->bcc_batch_size -1;
 
@@ -1414,7 +1434,7 @@ class CI_Email {
 			$this->_spool_email();
 		}
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1423,11 +1443,11 @@ class CI_Email {
 	 * @access	private
 	 * @return	void
 	 */
-	function _unwrap_specials()
+	private function _unwrap_specials()
 	{
 		$this->_finalbody = preg_replace_callback("/\{unwrap\}(.*?)\{\/unwrap\}/si", array($this, '_remove_nl_callback'), $this->_finalbody);
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1436,7 +1456,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	string
 	 */
-	function _remove_nl_callback($matches)
+	private function _remove_nl_callback($matches)
 	{
 		if (strpos($matches[1], "\r") !== FALSE OR strpos($matches[1], "\n") !== FALSE)
 		{
@@ -1445,7 +1465,7 @@ class CI_Email {
 
 		return $matches[1];
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1454,7 +1474,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	bool
 	 */
-	function _spool_email()
+	private function _spool_email()
 	{
 		$this->_unwrap_specials();
 
@@ -1490,7 +1510,7 @@ class CI_Email {
 		$this->_set_error_message('email_sent', $this->_get_protocol());
 		return TRUE;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1499,7 +1519,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	bool
 	 */
-	function _send_with_mail()
+	private function _send_with_mail()
 	{
 		if ($this->_safe_mode == TRUE)
 		{
@@ -1516,6 +1536,7 @@ class CI_Email {
 		{
 			// most documentation of sendmail using the "-f" flag lacks a space after it, however
 			// we've encountered servers that seem to require it to be in place.
+
 			if ( ! mail($this->_recipients, $this->_subject, $this->_finalbody, $this->_header_str, "-f ".$this->clean_email($this->_headers['From'])))
 			{
 				return FALSE;
@@ -1526,7 +1547,7 @@ class CI_Email {
 			}
 		}
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1535,7 +1556,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	bool
 	 */
-	function _send_with_sendmail()
+	private function _send_with_sendmail()
 	{
 		$fp = @popen($this->mailpath . " -oi -f ".$this->clean_email($this->_headers['From'])." -t", 'w');
 
@@ -1544,17 +1565,17 @@ class CI_Email {
 			// server probably has popen disabled, so nothing we can do to get a verbose error.
 			return FALSE;
 		}
-		
+
 		fputs($fp, $this->_header_str);
 		fputs($fp, $this->_finalbody);
 
-	    $status = pclose($fp);
-	    
+		$status = pclose($fp);
+
 		if (version_compare(PHP_VERSION, '4.2.3') == -1)
 		{
 			$status = $status >> 8 & 0xFF;
-	    }
-	
+		}
+
 		if ($status != 0)
 		{
 			$this->_set_error_message('email_exit_status', $status);
@@ -1564,7 +1585,7 @@ class CI_Email {
 
 		return TRUE;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1573,7 +1594,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	bool
 	 */
-	function _send_with_smtp()
+	private function _send_with_smtp()
 	{
 		if ($this->smtp_host == '')
 		{
@@ -1633,7 +1654,7 @@ class CI_Email {
 		$this->_send_command('quit');
 		return TRUE;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1643,7 +1664,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	string
 	 */
-	function _smtp_connect()
+	private function _smtp_connect()
 	{
 		$this->_smtp_connect = fsockopen($this->smtp_host,
 										$this->smtp_port,
@@ -1660,7 +1681,7 @@ class CI_Email {
 		$this->_set_error_message($this->_get_smtp_data());
 		return $this->_send_command('hello');
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1671,7 +1692,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	string
 	 */
-	function _send_command($cmd, $data = '')
+	private function _send_command($cmd, $data = '')
 	{
 		switch ($cmd)
 		{
@@ -1727,7 +1748,7 @@ class CI_Email {
 
 		return TRUE;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1736,7 +1757,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	bool
 	 */
-	function _smtp_authenticate()
+	private function _smtp_authenticate()
 	{
 		if ( ! $this->_smtp_auth)
 		{
@@ -1781,7 +1802,7 @@ class CI_Email {
 
 		return TRUE;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1790,7 +1811,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	bool
 	 */
-	function _send_data($data)
+	private function _send_data($data)
 	{
 		if ( ! fwrite($this->_smtp_connect, $data . $this->newline))
 		{
@@ -1802,7 +1823,7 @@ class CI_Email {
 			return TRUE;
 		}
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1811,7 +1832,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	string
 	 */
-	function _get_smtp_data()
+	private function _get_smtp_data()
 	{
 		$data = "";
 
@@ -1827,7 +1848,7 @@ class CI_Email {
 
 		return $data;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1836,11 +1857,11 @@ class CI_Email {
 	 * @access	private
 	 * @return	string
 	 */
-	function _get_hostname()
+	private function _get_hostname()
 	{
 		return (isset($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : 'localhost.localdomain';
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1849,7 +1870,7 @@ class CI_Email {
 	 * @access	private
 	 * @return	string
 	 */
-	function _get_ip()
+	private function _get_ip()
 	{
 		if ($this->_IP !== FALSE)
 		{
@@ -1860,12 +1881,12 @@ class CI_Email {
 		$rip = (isset($_SERVER['REMOTE_ADDR']) AND $_SERVER['REMOTE_ADDR'] != "") ? $_SERVER['REMOTE_ADDR'] : FALSE;
 		$fip = (isset($_SERVER['HTTP_X_FORWARDED_FOR']) AND $_SERVER['HTTP_X_FORWARDED_FOR'] != "") ? $_SERVER['HTTP_X_FORWARDED_FOR'] : FALSE;
 
-		if ($cip && $rip) 	$this->_IP = $cip;
+		if ($cip && $rip)	$this->_IP = $cip;
 		elseif ($rip)		$this->_IP = $rip;
 		elseif ($cip)		$this->_IP = $cip;
 		elseif ($fip)		$this->_IP = $fip;
 
-		if (strstr($this->_IP, ','))
+		if (strpos($this->_IP, ',') !== FALSE)
 		{
 			$x = explode(',', $this->_IP);
 			$this->_IP = end($x);
@@ -1882,7 +1903,7 @@ class CI_Email {
 
 		return $this->_IP;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1891,7 +1912,7 @@ class CI_Email {
 	 * @access	public
 	 * @return	string
 	 */
-	function print_debugger()
+	public function print_debugger()
 	{
 		$msg = '';
 
@@ -1906,7 +1927,7 @@ class CI_Email {
 		$msg .= "<pre>".$this->_header_str."\n".htmlspecialchars($this->_subject)."\n".htmlspecialchars($this->_finalbody).'</pre>';
 		return $msg;
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1916,7 +1937,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	string
 	 */
-	function _set_error_message($msg, $val = '')
+	private function _set_error_message($msg, $val = '')
 	{
 		$CI =& get_instance();
 		$CI->lang->load('email');
@@ -1930,7 +1951,7 @@ class CI_Email {
 			$this->_debug_msg[] = str_replace('%s', $val, $line)."<br />";
 		}
 	}
-  
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -1940,7 +1961,7 @@ class CI_Email {
 	 * @param	string
 	 * @return	string
 	 */
-	function _mime_types($ext = "")
+	private function _mime_types($ext = "")
 	{
 		$mimes = array(	'hqx'	=>	'application/mac-binhex40',
 						'cpt'	=>	'application/mac-compactpro',
diff --git a/system/libraries/Encrypt.php b/system/libraries/Encrypt.php
index c893fbf9e..e5f65878a 100644..100755
--- a/system/libraries/Encrypt.php
+++ b/system/libraries/Encrypt.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -41,7 +41,7 @@ class CI_Encrypt {
 	 * Simply determines whether the mcrypt library exists.
 	 *
 	 */
-	function CI_Encrypt()
+	public function __construct()
 	{
 		$this->CI =& get_instance();
 		$this->_mcrypt_exists = ( ! function_exists('mcrypt_encrypt')) ? FALSE : TRUE;
@@ -72,7 +72,7 @@ class CI_Encrypt {
 			$CI =& get_instance();
 			$key = $CI->config->item('encryption_key');
 
-			if ($key === FALSE)
+			if ($key == FALSE)
 			{
 				show_error('In order to use the encryption class requires that you set an encryption key in your config file.');
 			}
@@ -116,12 +116,16 @@ class CI_Encrypt {
 	function encode($string, $key = '')
 	{
 		$key = $this->get_key($key);
-		$enc = $this->_xor_encode($string, $key);
-		
+
 		if ($this->_mcrypt_exists === TRUE)
 		{
-			$enc = $this->mcrypt_encode($enc, $key);
+			$enc = $this->mcrypt_encode($string, $key);
+		}
+		else
+		{
+			$enc = $this->_xor_encode($string, $key);
 		}
+
 		return base64_encode($enc);
 	}
 
@@ -140,7 +144,7 @@ class CI_Encrypt {
 	function decode($string, $key = '')
 	{
 		$key = $this->get_key($key);
-		
+
 		if (preg_match('/[^a-zA-Z0-9\/\+=]/', $string))
 		{
 			return FALSE;
@@ -155,8 +159,67 @@ class CI_Encrypt {
 				return FALSE;
 			}
 		}
+		else
+		{
+			$dec = $this->_xor_decode($dec, $key);
+		}
 
-		return $this->_xor_decode($dec, $key);
+		return $dec;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Encode from Legacy
+	 *
+	 * Takes an encoded string from the original Encryption class algorithms and
+	 * returns a newly encoded string using the improved method added in 2.0.0
+	 * This allows for backwards compatibility and a method to transition to the
+	 * new encryption algorithms.
+	 *
+	 * For more details, see http://codeigniter.com/user_guide/installation/upgrade_200.html#encryption
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	int		(mcrypt mode constant)
+	 * @param	string
+	 * @return	string
+	 */
+	function encode_from_legacy($string, $legacy_mode = MCRYPT_MODE_ECB, $key = '')
+	{
+		if ($this->_mcrypt_exists === FALSE)
+		{
+			log_message('error', 'Encoding from legacy is available only when Mcrypt is in use.');
+			return FALSE;
+		}
+
+		// decode it first
+		// set mode temporarily to what it was when string was encoded with the legacy
+		// algorithm - typically MCRYPT_MODE_ECB
+		$current_mode = $this->_get_mode();
+		$this->set_mode($legacy_mode);
+
+		$key = $this->get_key($key);
+
+		if (preg_match('/[^a-zA-Z0-9\/\+=]/', $string))
+		{
+			return FALSE;
+		}
+
+		$dec = base64_decode($string);
+
+		if (($dec = $this->mcrypt_decode($dec, $key)) === FALSE)
+		{
+			return FALSE;
+		}
+
+		$dec = $this->_xor_decode($dec, $key);
+
+		// set the mcrypt mode back to what it should be, typically MCRYPT_MODE_CBC
+		$this->set_mode($current_mode);
+
+		// and re-encode
+		return base64_encode($this->mcrypt_encode($dec, $key));
 	}
 
 	// --------------------------------------------------------------------
@@ -184,7 +247,7 @@ class CI_Encrypt {
 
 		$enc = '';
 		for ($i = 0; $i < strlen($string); $i++)
-		{			
+		{
 			$enc .= substr($rand, ($i % strlen($rand)), 1).(substr($rand, ($i % strlen($rand)), 1) ^ substr($string, $i, 1));
 		}
 
@@ -347,7 +410,7 @@ class CI_Encrypt {
 			{
 				$temp = $temp + 256;
 			}
-			
+
 			$str .= chr($temp);
 		}
 
@@ -355,7 +418,7 @@ class CI_Encrypt {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the Mcrypt Cipher
 	 *
@@ -412,9 +475,9 @@ class CI_Encrypt {
 	{
 		if ($this->_mcrypt_mode == '')
 		{
-			$this->_mcrypt_mode = MCRYPT_MODE_ECB;
+			$this->_mcrypt_mode = MCRYPT_MODE_CBC;
 		}
-		
+
 		return $this->_mcrypt_mode;
 	}
 
@@ -440,7 +503,7 @@ class CI_Encrypt {
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function hash($str)
 	{
 		return ($this->_hash_type == 'sha1') ? $this->sha1($str) : md5($str);
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index 640bf9180..fc5b82ee3 100644..100755
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -25,29 +25,28 @@
  * @link		http://codeigniter.com/user_guide/libraries/form_validation.html
  */
 class CI_Form_validation {
-	
+
 	var $CI;
-	var $_field_data			= array();	
+	var $_field_data			= array();
 	var $_config_rules			= array();
 	var $_error_array			= array();
-	var $_error_messages		= array();	
+	var $_error_messages		= array();
 	var $_error_prefix			= '<p>';
 	var $_error_suffix			= '</p>';
 	var $error_string			= '';
-	var $_safe_form_data 		= FALSE;
+	var $_safe_form_data		= FALSE;
 
 
 	/**
 	 * Constructor
-	 *
-	 */	
-	function CI_Form_validation($rules = array())
-	{	
+	 */
+	public function __construct($rules = array())
+	{
 		$this->CI =& get_instance();
-		
+
 		// Validation rules can be stored in a config file.
 		$this->_config_rules = $rules;
-		
+
 		// Automatically load the form helper
 		$this->CI->load->helper('form');
 
@@ -56,12 +55,12 @@ class CI_Form_validation {
 		{
 			mb_internal_encoding($this->CI->config->item('charset'));
 		}
-	
+
 		log_message('debug', "Form Validation Class Initialized");
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Rules
 	 *
@@ -78,9 +77,9 @@ class CI_Form_validation {
 		// No reason to set rules if we have no POST data
 		if (count($_POST) == 0)
 		{
-			return;
+			return $this;
 		}
-	
+
 		// If an array was passed via the first parameter instead of indidual string
 		// values we cycle through it and recursively call this function.
 		if (is_array($field))
@@ -99,13 +98,13 @@ class CI_Form_validation {
 				// Here we go!
 				$this->set_rules($row['field'], $label, $row['rules']);
 			}
-			return;
+			return $this;
 		}
-		
+
 		// No fields? Nothing to do...
 		if ( ! is_string($field) OR  ! is_string($rules) OR $field == '')
 		{
-			return;
+			return $this;
 		}
 
 		// If the field label wasn't passed we use the field name
@@ -113,9 +112,9 @@ class CI_Form_validation {
 
 		// Is the field name an array?  We test for the existence of a bracket "[" in
 		// the field name to determine this.  If it is an array, we break it apart
-		// into its components so that we can fetch the corresponding POST data later		
+		// into its components so that we can fetch the corresponding POST data later
 		if (strpos($field, '[') !== FALSE AND preg_match_all('/\[(.*?)\]/', $field, $matches))
-		{	
+		{
 			// Note: Due to a bug in current() that affects some versions
 			// of PHP we can not pass function call directly into it
 			$x = explode('[', $field);
@@ -128,29 +127,31 @@ class CI_Form_validation {
 					$indexes[] = $matches['1'][$i];
 				}
 			}
-			
+
 			$is_array = TRUE;
 		}
 		else
 		{
-			$indexes 	= array();
-			$is_array	= FALSE;		
+			$indexes	= array();
+			$is_array	= FALSE;
 		}
-		
-		// Build our master array		
+
+		// Build our master array
 		$this->_field_data[$field] = array(
-											'field'				=> $field, 
-											'label'				=> $label, 
+											'field'				=> $field,
+											'label'				=> $label,
 											'rules'				=> $rules,
 											'is_array'			=> $is_array,
 											'keys'				=> $indexes,
 											'postdata'			=> NULL,
 											'error'				=> ''
 											);
+
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Error Message
 	 *
@@ -168,12 +169,14 @@ class CI_Form_validation {
 		{
 			$lang = array($lang => $val);
 		}
-	
+
 		$this->_error_messages = array_merge($this->_error_messages, $lang);
+
+		return $this;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set The Error Delimiter
 	 *
@@ -183,15 +186,17 @@ class CI_Form_validation {
 	 * @param	string
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_error_delimiters($prefix = '<p>', $suffix = '</p>')
 	{
 		$this->_error_prefix = $prefix;
 		$this->_error_suffix = $suffix;
+
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get Error Message
 	 *
@@ -200,14 +205,14 @@ class CI_Form_validation {
 	 * @access	public
 	 * @param	string	the field name
 	 * @return	void
-	 */	
+	 */
 	function error($field = '', $prefix = '', $suffix = '')
-	{	
+	{
 		if ( ! isset($this->_field_data[$field]['error']) OR $this->_field_data[$field]['error'] == '')
 		{
 			return '';
 		}
-		
+
 		if ($prefix == '')
 		{
 			$prefix = $this->_error_prefix;
@@ -222,7 +227,7 @@ class CI_Form_validation {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Error String
 	 *
@@ -232,7 +237,7 @@ class CI_Form_validation {
 	 * @param	string
 	 * @param	string
 	 * @return	str
-	 */	
+	 */
 	function error_string($prefix = '', $suffix = '')
 	{
 		// No errrors, validation passes!
@@ -240,7 +245,7 @@ class CI_Form_validation {
 		{
 			return '';
 		}
-		
+
 		if ($prefix == '')
 		{
 			$prefix = $this->_error_prefix;
@@ -250,7 +255,7 @@ class CI_Form_validation {
 		{
 			$suffix = $this->_error_suffix;
 		}
-		
+
 		// Generate the error string
 		$str = '';
 		foreach ($this->_error_array as $val)
@@ -260,12 +265,12 @@ class CI_Form_validation {
 				$str .= $prefix.$val.$suffix."\n";
 			}
 		}
-		
+
 		return $str;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Run the Validator
 	 *
@@ -273,7 +278,7 @@ class CI_Form_validation {
 	 *
 	 * @access	public
 	 * @return	bool
-	 */		
+	 */
 	function run($group = '')
 	{
 		// Do we even have any data to process?  Mm?
@@ -281,7 +286,7 @@ class CI_Form_validation {
 		{
 			return FALSE;
 		}
-		
+
 		// Does the _field_data array containing the validation rules exist?
 		// If not, we look to see if they were assigned via a config file
 		if (count($this->_field_data) == 0)
@@ -291,10 +296,10 @@ class CI_Form_validation {
 			{
 				return FALSE;
 			}
-			
+
 			// Is there a validation rule for the particular URI being accessed?
 			$uri = ($group == '') ? trim($this->CI->uri->ruri_string(), '/') : $group;
-			
+
 			if ($uri != '' AND isset($this->_config_rules[$uri]))
 			{
 				$this->set_rules($this->_config_rules[$uri]);
@@ -303,7 +308,7 @@ class CI_Form_validation {
 			{
 				$this->set_rules($this->_config_rules);
 			}
-	
+
 			// We're we able to set the rules correctly?
 			if (count($this->_field_data) == 0)
 			{
@@ -311,17 +316,17 @@ class CI_Form_validation {
 				return FALSE;
 			}
 		}
-	
+
 		// Load the language file containing error messages
 		$this->CI->lang->load('form_validation');
-							
-		// Cycle through the rules for each field, match the 
+
+		// Cycle through the rules for each field, match the
 		// corresponding $_POST item and test for errors
 		foreach ($this->_field_data as $field => $row)
-		{		
+		{
 			// Fetch the data from the corresponding $_POST array and cache it in the _field_data array.
 			// Depending on whether the field name is an array or a string will determine where we get it from.
-			
+
 			if ($row['is_array'] == TRUE)
 			{
 				$this->_field_data[$field]['postdata'] = $this->_reduce_array($_POST, $row['keys']);
@@ -333,8 +338,8 @@ class CI_Form_validation {
 					$this->_field_data[$field]['postdata'] = $_POST[$field];
 				}
 			}
-		
-			$this->_execute($row, explode('|', $row['rules']), $this->_field_data[$field]['postdata']);		
+
+			$this->_execute($row, explode('|', $row['rules']), $this->_field_data[$field]['postdata']);
 		}
 
 		// Did we end up with any errors?
@@ -347,7 +352,7 @@ class CI_Form_validation {
 
 		// Now we need to re-set the POST data with the new, processed data
 		$this->_reset_post_array();
-		
+
 		// No errors, validation passes!
 		if ($total_errors == 0)
 		{
@@ -359,7 +364,7 @@ class CI_Form_validation {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Traverse a multidimensional $_POST array index until the data is found
 	 *
@@ -368,7 +373,7 @@ class CI_Form_validation {
 	 * @param	array
 	 * @param	integer
 	 * @return	mixed
-	 */		
+	 */
 	function _reduce_array($array, $keys, $i = 0)
 	{
 		if (is_array($array))
@@ -389,18 +394,18 @@ class CI_Form_validation {
 				return $array;
 			}
 		}
-	
+
 		return $array;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Re-populate the _POST array with our finalized and processed data
 	 *
 	 * @access	private
 	 * @return	null
-	 */		
+	 */
 	function _reset_post_array()
 	{
 		foreach ($this->_field_data as $field => $row)
@@ -418,7 +423,7 @@ class CI_Form_validation {
 				{
 					// start with a reference
 					$post_ref =& $_POST;
-					
+
 					// before we assign values, make a reference to the right POST key
 					if (count($row['keys']) == 1)
 					{
@@ -452,7 +457,7 @@ class CI_Form_validation {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Executes the Validation routines
 	 *
@@ -462,21 +467,21 @@ class CI_Form_validation {
 	 * @param	mixed
 	 * @param	integer
 	 * @return	mixed
-	 */	
+	 */
 	function _execute($row, $rules, $postdata = NULL, $cycles = 0)
 	{
 		// If the $_POST data is an array we will run a recursive call
 		if (is_array($postdata))
-		{ 
+		{
 			foreach ($postdata as $key => $val)
 			{
 				$this->_execute($row, $rules, $val, $cycles);
 				$cycles++;
 			}
-			
+
 			return;
 		}
-		
+
 		// --------------------------------------------------------------------
 
 		// If the field is blank, but NOT required, no further tests are necessary
@@ -496,7 +501,7 @@ class CI_Form_validation {
 		}
 
 		// --------------------------------------------------------------------
-		
+
 		// Isset Test. Typically this rule will only apply to checkboxes.
 		if (is_null($postdata) AND $callback == FALSE)
 		{
@@ -504,31 +509,31 @@ class CI_Form_validation {
 			{
 				// Set the message type
 				$type = (in_array('required', $rules)) ? 'required' : 'isset';
-			
+
 				if ( ! isset($this->_error_messages[$type]))
 				{
 					if (FALSE === ($line = $this->CI->lang->line($type)))
 					{
 						$line = 'The field was not set';
-					}							
+					}
 				}
 				else
 				{
 					$line = $this->_error_messages[$type];
 				}
-				
+
 				// Build the error message
 				$message = sprintf($line, $this->_translate_fieldname($row['label']));
 
 				// Save the error message
 				$this->_field_data[$row['field']]['error'] = $message;
-				
+
 				if ( ! isset($this->_error_array[$row['field']]))
 				{
 					$this->_error_array[$row['field']] = $message;
 				}
 			}
-					
+
 			return;
 		}
 
@@ -538,7 +543,7 @@ class CI_Form_validation {
 		foreach ($rules As $rule)
 		{
 			$_in_array = FALSE;
-			
+
 			// We set the $postdata variable with the current data in our master array so that
 			// each cycle of the loop is dealing with the processed data from the last cycle
 			if ($row['is_array'] == TRUE AND is_array($this->_field_data[$row['field']]['postdata']))
@@ -549,7 +554,7 @@ class CI_Form_validation {
 				{
 					continue;
 				}
-			
+
 				$postdata = $this->_field_data[$row['field']]['postdata'][$cycles];
 				$_in_array = TRUE;
 			}
@@ -559,32 +564,32 @@ class CI_Form_validation {
 			}
 
 			// --------------------------------------------------------------------
-	
-			// Is the rule a callback?			
+
+			// Is the rule a callback?
 			$callback = FALSE;
 			if (substr($rule, 0, 9) == 'callback_')
 			{
 				$rule = substr($rule, 9);
 				$callback = TRUE;
 			}
-			
+
 			// Strip the parameter (if exists) from the rule
 			// Rules can contain a parameter: max_length[5]
 			$param = FALSE;
-			if (preg_match("/(.*?)\[(.*?)\]/", $rule, $match))
+			if (preg_match("/(.*?)\[(.*)\]/", $rule, $match))
 			{
 				$rule	= $match[1];
 				$param	= $match[2];
 			}
-			
+
 			// Call the function that corresponds to the rule
 			if ($callback === TRUE)
 			{
 				if ( ! method_exists($this->CI, $rule))
-				{ 		
+				{
 					continue;
 				}
-				
+
 				// Run the function and grab the result
 				$result = $this->CI->$rule($postdata, $param);
 
@@ -597,7 +602,7 @@ class CI_Form_validation {
 				{
 					$this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result;
 				}
-			
+
 				// If the field isn't required and we just processed a callback we'll move on...
 				if ( ! in_array('required', $rules, TRUE) AND $result !== FALSE)
 				{
@@ -605,15 +610,15 @@ class CI_Form_validation {
 				}
 			}
 			else
-			{				
+			{
 				if ( ! method_exists($this, $rule))
 				{
-					// If our own wrapper function doesn't exist we see if a native PHP function does. 
+					// If our own wrapper function doesn't exist we see if a native PHP function does.
 					// Users can use any native PHP function call that has one param.
 					if (function_exists($rule))
 					{
 						$result = $rule($postdata);
-											
+
 						if ($_in_array == TRUE)
 						{
 							$this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result;
@@ -623,7 +628,7 @@ class CI_Form_validation {
 							$this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result;
 						}
 					}
-										
+
 					continue;
 				}
 
@@ -638,54 +643,54 @@ class CI_Form_validation {
 					$this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result;
 				}
 			}
-							
+
 			// Did the rule test negatively?  If so, grab the error.
 			if ($result === FALSE)
-			{			
+			{
 				if ( ! isset($this->_error_messages[$rule]))
 				{
 					if (FALSE === ($line = $this->CI->lang->line($rule)))
 					{
 						$line = 'Unable to access an error message corresponding to your field name.';
-					}						
+					}
 				}
 				else
 				{
 					$line = $this->_error_messages[$rule];
 				}
-				
+
 				// Is the parameter we are inserting into the error message the name
 				// of another field?  If so we need to grab its "field label"
 				if (isset($this->_field_data[$param]) AND isset($this->_field_data[$param]['label']))
 				{
-					$param = $this->_field_data[$param]['label'];
+					$param = $this->_translate_fieldname($this->_field_data[$param]['label']);
 				}
-				
+
 				// Build the error message
 				$message = sprintf($line, $this->_translate_fieldname($row['label']), $param);
 
 				// Save the error message
 				$this->_field_data[$row['field']]['error'] = $message;
-				
+
 				if ( ! isset($this->_error_array[$row['field']]))
 				{
 					$this->_error_array[$row['field']] = $message;
 				}
-				
+
 				return;
 			}
 		}
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Translate a field name
 	 *
 	 * @access	private
 	 * @param	string	the field name
 	 * @return	string
-	 */	
+	 */
 	function _translate_fieldname($fieldname)
 	{
 		// Do we need to translate the field name?
@@ -693,8 +698,8 @@ class CI_Form_validation {
 		if (substr($fieldname, 0, 5) == 'lang:')
 		{
 			// Grab the variable
-			$line = substr($fieldname, 5);			
-			
+			$line = substr($fieldname, 5);
+
 			// Were we able to translate the field name?  If not we use $line
 			if (FALSE === ($fieldname = $this->CI->lang->line($line)))
 			{
@@ -706,7 +711,7 @@ class CI_Form_validation {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get the value from a form
 	 *
@@ -717,19 +722,26 @@ class CI_Form_validation {
 	 * @param	string	the field name
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_value($field = '', $default = '')
 	{
 		if ( ! isset($this->_field_data[$field]))
 		{
 			return $default;
 		}
-		
+
+		// If the data is an array output them one at a time.
+		//     E.g: form_input('name[]', set_value('name[]');
+		if (is_array($this->_field_data[$field]['postdata']))
+		{
+			return array_shift($this->_field_data[$field]['postdata']);
+		}
+
 		return $this->_field_data[$field]['postdata'];
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Select
 	 *
@@ -740,9 +752,9 @@ class CI_Form_validation {
 	 * @param	string
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function set_select($field = '', $value = '', $default = FALSE)
-	{		
+	{
 		if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata']))
 		{
 			if ($default === TRUE AND count($this->_field_data) === 0)
@@ -751,9 +763,9 @@ class CI_Form_validation {
 			}
 			return '';
 		}
-	
+
 		$field = $this->_field_data[$field]['postdata'];
-		
+
 		if (is_array($field))
 		{
 			if ( ! in_array($value, $field))
@@ -768,12 +780,12 @@ class CI_Form_validation {
 				return '';
 			}
 		}
-			
+
 		return ' selected="selected"';
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Radio
 	 *
@@ -784,7 +796,7 @@ class CI_Form_validation {
 	 * @param	string
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function set_radio($field = '', $value = '', $default = FALSE)
 	{
 		if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata']))
@@ -795,9 +807,9 @@ class CI_Form_validation {
 			}
 			return '';
 		}
-	
+
 		$field = $this->_field_data[$field]['postdata'];
-		
+
 		if (is_array($field))
 		{
 			if ( ! in_array($value, $field))
@@ -812,12 +824,12 @@ class CI_Form_validation {
 				return '';
 			}
 		}
-			
+
 		return ' checked="checked"';
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Checkbox
 	 *
@@ -828,7 +840,7 @@ class CI_Form_validation {
 	 * @param	string
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function set_checkbox($field = '', $value = '', $default = FALSE)
 	{
 		if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata']))
@@ -839,9 +851,9 @@ class CI_Form_validation {
 			}
 			return '';
 		}
-	
+
 		$field = $this->_field_data[$field]['postdata'];
-		
+
 		if (is_array($field))
 		{
 			if ( ! in_array($value, $field))
@@ -856,12 +868,12 @@ class CI_Form_validation {
 				return '';
 			}
 		}
-			
+
 		return ' checked="checked"';
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Required
 	 *
@@ -880,9 +892,29 @@ class CI_Form_validation {
 			return ( ! empty($str));
 		}
 	}
-	
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Performs a Regular Expression match test.
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	regex
+	 * @return	bool
+	 */
+	function regex_match($str, $regex)
+	{
+		if ( ! preg_match($regex, $str))
+		{
+			return FALSE;
+		}
+
+		return  TRUE;
+	}
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Match one field to another
 	 *
@@ -895,16 +927,16 @@ class CI_Form_validation {
 	{
 		if ( ! isset($_POST[$field]))
 		{
-			return FALSE;				
+			return FALSE;
 		}
-		
+
 		$field = $_POST[$field];
 
 		return ($str !== $field) ? FALSE : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Minimum Length
 	 *
@@ -912,7 +944,7 @@ class CI_Form_validation {
 	 * @param	string
 	 * @param	value
 	 * @return	bool
-	 */	
+	 */
 	function min_length($str, $val)
 	{
 		if (preg_match("/[^0-9]/", $val))
@@ -922,14 +954,14 @@ class CI_Form_validation {
 
 		if (function_exists('mb_strlen'))
 		{
-			return (mb_strlen($str) < $val) ? FALSE : TRUE;		
+			return (mb_strlen($str) < $val) ? FALSE : TRUE;
 		}
-	
+
 		return (strlen($str) < $val) ? FALSE : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Max Length
 	 *
@@ -937,7 +969,7 @@ class CI_Form_validation {
 	 * @param	string
 	 * @param	value
 	 * @return	bool
-	 */	
+	 */
 	function max_length($str, $val)
 	{
 		if (preg_match("/[^0-9]/", $val))
@@ -947,14 +979,14 @@ class CI_Form_validation {
 
 		if (function_exists('mb_strlen'))
 		{
-			return (mb_strlen($str) > $val) ? FALSE : TRUE;		
+			return (mb_strlen($str) > $val) ? FALSE : TRUE;
 		}
-	
+
 		return (strlen($str) > $val) ? FALSE : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Exact Length
 	 *
@@ -962,7 +994,7 @@ class CI_Form_validation {
 	 * @param	string
 	 * @param	value
 	 * @return	bool
-	 */	
+	 */
 	function exact_length($str, $val)
 	{
 		if (preg_match("/[^0-9]/", $val))
@@ -972,42 +1004,42 @@ class CI_Form_validation {
 
 		if (function_exists('mb_strlen'))
 		{
-			return (mb_strlen($str) != $val) ? FALSE : TRUE;		
+			return (mb_strlen($str) != $val) ? FALSE : TRUE;
 		}
-	
+
 		return (strlen($str) != $val) ? FALSE : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Valid Email
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	bool
-	 */	
+	 */
 	function valid_email($str)
 	{
 		return ( ! preg_match("/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $str)) ? FALSE : TRUE;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Valid Emails
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	bool
-	 */	
+	 */
 	function valid_emails($str)
 	{
 		if (strpos($str, ',') === FALSE)
 		{
 			return $this->valid_email(trim($str));
 		}
-		
+
 		foreach(explode(',', $str) as $email)
 		{
 			if (trim($email) != '' && $this->valid_email(trim($email)) === FALSE)
@@ -1015,12 +1047,12 @@ class CI_Form_validation {
 				return FALSE;
 			}
 		}
-		
+
 		return TRUE;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Validate IP Address
 	 *
@@ -1034,56 +1066,56 @@ class CI_Form_validation {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Alpha
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	bool
-	 */		
+	 */
 	function alpha($str)
 	{
 		return ( ! preg_match("/^([a-z])+$/i", $str)) ? FALSE : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Alpha-numeric
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	bool
-	 */	
+	 */
 	function alpha_numeric($str)
 	{
 		return ( ! preg_match("/^([a-z0-9])+$/i", $str)) ? FALSE : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Alpha-numeric with underscores and dashes
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	bool
-	 */	
+	 */
 	function alpha_dash($str)
 	{
 		return ( ! preg_match("/^([-a-z0-9_-])+$/i", $str)) ? FALSE : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Numeric
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	bool
-	 */	
+	 */
 	function numeric($str)
 	{
 		return (bool)preg_match( '/^[\-+]?[0-9]*\.?[0-9]+$/', $str);
@@ -1092,72 +1124,72 @@ class CI_Form_validation {
 
 	// --------------------------------------------------------------------
 
-    /**
-     * Is Numeric
-     *
-     * @access    public
-     * @param    string
-     * @return    bool
-     */
-    function is_numeric($str)
-    {
-        return ( ! is_numeric($str)) ? FALSE : TRUE;
-    } 
+	/**
+	 * Is Numeric
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	bool
+	 */
+	function is_numeric($str)
+	{
+		return ( ! is_numeric($str)) ? FALSE : TRUE;
+	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Integer
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	bool
-	 */	
+	 */
 	function integer($str)
 	{
 		return (bool)preg_match( '/^[\-+]?[0-9]+$/', $str);
 	}
-	
+
 	// --------------------------------------------------------------------
 
-    /**
-     * Is a Natural number  (0,1,2,3, etc.)
-     *
-     * @access	public
-     * @param	string
-     * @return	bool
-     */
-    function is_natural($str)
-    {   
-   		return (bool)preg_match( '/^[0-9]+$/', $str);
-    }
+	/**
+	 * Is a Natural number  (0,1,2,3, etc.)
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	bool
+	 */
+	function is_natural($str)
+	{
+		return (bool)preg_match( '/^[0-9]+$/', $str);
+	}
 
 	// --------------------------------------------------------------------
 
-    /**
-     * Is a Natural number, but not a zero  (1,2,3, etc.)
-     *
-     * @access	public
-     * @param	string
-     * @return	bool
-     */
+	/**
+	 * Is a Natural number, but not a zero  (1,2,3, etc.)
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	bool
+	 */
 	function is_natural_no_zero($str)
-    {
-    	if ( ! preg_match( '/^[0-9]+$/', $str))
-    	{
-    		return FALSE;
-    	}
-    	
-    	if ($str == 0)
-    	{
-    		return FALSE;
-    	}
-    
-   		return TRUE;
-    }
-	
+	{
+		if ( ! preg_match( '/^[0-9]+$/', $str))
+		{
+			return FALSE;
+		}
+
+		if ($str == 0)
+		{
+			return FALSE;
+		}
+
+		return TRUE;
+	}
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Valid Base64
 	 *
@@ -1172,9 +1204,9 @@ class CI_Form_validation {
 	{
 		return (bool) ! preg_match('/[^a-zA-Z0-9\/\+=]/', $str);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Prep data for form
 	 *
@@ -1193,10 +1225,10 @@ class CI_Form_validation {
 			{
 				$data[$key] = $this->prep_for_form($val);
 			}
-			
+
 			return $data;
 		}
-		
+
 		if ($this->_safe_form_data == FALSE OR $data === '')
 		{
 			return $data;
@@ -1204,68 +1236,73 @@ class CI_Form_validation {
 
 		return str_replace(array("'", '"', '<', '>'), array("&#39;", "&quot;", '&lt;', '&gt;'), stripslashes($data));
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Prep URL
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function prep_url($str = '')
 	{
 		if ($str == 'http://' OR $str == '')
 		{
 			return '';
 		}
-		
+
 		if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://')
 		{
 			$str = 'http://'.$str;
 		}
-		
+
 		return $str;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Strip Image Tags
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function strip_image_tags($str)
 	{
 		return $this->CI->input->strip_image_tags($str);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * XSS Clean
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function xss_clean($str)
 	{
-		return $this->CI->input->xss_clean($str);
+		if ( ! isset($this->CI->security))
+		{
+			$this->CI->load->library('security');
+		}
+
+		return $this->CI->security->xss_clean($str);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Convert PHP tags to entities
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function encode_php_tags($str)
 	{
 		return str_replace(array('<?php', '<?PHP', '<?', '?>'),  array('&lt;?php', '&lt;?PHP', '&lt;?', '?&gt;'), $str);
diff --git a/system/libraries/Ftp.php b/system/libraries/Ftp.php
index 16ad9ad43..d7a8b3b02 100644..100755
--- a/system/libraries/Ftp.php
+++ b/system/libraries/Ftp.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -40,7 +40,7 @@ class CI_FTP {
 	 *
 	 * The constructor can be passed an array of config values
 	 */
-	function CI_FTP($config = array())
+	public function __construct($config = array())
 	{
 		if (count($config) > 0)
 		{
@@ -281,6 +281,48 @@ class CI_FTP {
 	// --------------------------------------------------------------------
 
 	/**
+	 * Download a file from a remote server to the local server
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	string
+	 * @param	string
+	 * @return	bool
+	 */
+	function download($rempath, $locpath, $mode = 'auto')
+	{
+		if ( ! $this->_is_conn())
+		{
+			return FALSE;
+		}
+
+		// Set the mode if not specified
+		if ($mode == 'auto')
+		{
+			// Get the file extension so we can set the upload type
+			$ext = $this->_getext($rempath);
+			$mode = $this->_settype($ext);
+		}
+
+		$mode = ($mode == 'ascii') ? FTP_ASCII : FTP_BINARY;
+
+		$result = @ftp_get($this->conn_id, $locpath, $rempath, $mode);
+
+		if ($result === FALSE)
+		{
+			if ($this->debug == TRUE)
+			{
+				$this->_error('ftp_unable_to_download');
+			}
+			return FALSE;
+		}
+
+		return TRUE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
 	 * Rename (or move) a file
 	 *
 	 * @access	public
@@ -412,7 +454,7 @@ class CI_FTP {
 	 * Set file permissions
 	 *
 	 * @access	public
-	 * @param	string 	the file path
+	 * @param	string	the file path
 	 * @param	string	the permissions
 	 * @return	bool
 	 */
diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index 0b29c1fbd..41f9ad393 100644..100755
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -26,7 +26,7 @@
  */
 class CI_Image_lib {
 
-	var $image_library		= 'gd2';  	// Can be:  imagemagick, netpbm, gd, gd2
+	var $image_library		= 'gd2';	// Can be:  imagemagick, netpbm, gd, gd2
 	var $library_path		= '';
 	var $dynamic_output		= FALSE;	// Whether to send to browser or write to disk
 	var $source_image		= '';
@@ -36,7 +36,7 @@ class CI_Image_lib {
 	var $quality			= '90';
 	var $create_thumb		= FALSE;
 	var $thumb_marker		= '_thumb';
-	var $maintain_ratio		= TRUE;  	// Whether to maintain aspect ratio when resizing or use hard values
+	var $maintain_ratio		= TRUE;		// Whether to maintain aspect ratio when resizing or use hard values
 	var $master_dim			= 'auto';	// auto, height, or width.  Determines what to use as the master dimension
 	var $rotation_angle		= '';
 	var $x_axis				= '';
@@ -54,11 +54,11 @@ class CI_Image_lib {
 	var $wm_hor_alignment	= 'C';			// Horizontal alignment: L R C
 	var $wm_padding			= 0;			// Padding around text
 	var $wm_hor_offset		= 0;			// Lets you push text to the right
-	var $wm_vrt_offset		= 0;			 // Lets you push  text down
+	var $wm_vrt_offset		= 0;			// Lets you push  text down
 	var $wm_font_color		= '#ffffff';	// Text color
 	var $wm_shadow_color	= '';			// Dropshadow color
 	var $wm_shadow_distance	= 2;			// Dropshadow distance
-	var $wm_opacity			= 50; 			// Image opacity: 1 - 100  Only works with image
+	var $wm_opacity			= 50;			// Image opacity: 1 - 100  Only works with image
 
 	// Private Vars
 	var $source_folder		= '';
@@ -79,11 +79,10 @@ class CI_Image_lib {
 	/**
 	 * Constructor
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
 	 */
-	function CI_Image_lib($props = array())
+	public function __construct($props = array())
 	{
 		if (count($props) > 0)
 		{
@@ -147,7 +146,7 @@ class CI_Image_lib {
 		if ($this->source_image == '')
 		{
 			$this->set_error('imglib_source_image_required');
-			return FALSE;	   
+			return FALSE;	
 		}
 
 		/*
@@ -190,7 +189,7 @@ class CI_Image_lib {
 		// Set the Image Properties
 		if ( ! $this->get_image_properties($this->source_folder.$this->source_image))
 		{
-			return FALSE;	   
+			return FALSE;	
 		}
 
 		/*
@@ -400,7 +399,7 @@ class CI_Image_lib {
 		if ($this->rotation_angle == '' OR ! in_array($this->rotation_angle, $degs))
 		{
 			$this->set_error('imglib_rotation_angle_required');
-			return FALSE;	   
+			return FALSE;	
 		}
 
 		// Reassign the width and height
@@ -455,11 +454,11 @@ class CI_Image_lib {
 		{
 			if ($this->orig_width == $this->width AND $this->orig_height == $this->height)
 			{
- 				if ($this->source_image != $this->new_image)
- 				{
+				if ($this->source_image != $this->new_image)
+				{
 					if (@copy($this->full_src_path, $this->full_dst_path))
 					{
-						@chmod($this->full_dst_path, DIR_WRITE_MODE);
+						@chmod($this->full_dst_path, FILE_WRITE_MODE);
 					}
 				}
 
@@ -494,14 +493,14 @@ class CI_Image_lib {
 			return FALSE;
 		}
 
- 		//  Create The Image
+		//  Create The Image
 		//
 		//  old conditional which users report cause problems with shared GD libs who report themselves as "2.0 or greater"
 		//  it appears that this is no longer the issue that it was in 2004, so we've removed it, retaining it in the comment
 		//  below should that ever prove inaccurate.
 		//
 		//  if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor') AND $v2_override == FALSE)
- 		if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor'))
+		if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor'))
 		{
 			$create	= 'imagecreatetruecolor';
 			$copy	= 'imagecopyresampled';
@@ -513,6 +512,13 @@ class CI_Image_lib {
 		}
 
 		$dst_img = $create($this->width, $this->height);
+
+		if ($this->image_type == 3) // png we can actually preserve transparency
+		{
+			imagealphablending($dst_img, FALSE);
+			imagesavealpha($dst_img, TRUE);
+		}
+
 		$copy($dst_img, $src_img, 0, 0, $this->x_axis, $this->y_axis, $this->width, $this->height, $this->orig_width, $this->orig_height);
 
 		//  Show the image
@@ -534,7 +540,7 @@ class CI_Image_lib {
 		imagedestroy($src_img);
 
 		// Set the file to 777
-		@chmod($this->full_dst_path, DIR_WRITE_MODE);
+		@chmod($this->full_dst_path, FILE_WRITE_MODE);
 
 		return TRUE;
 	}
@@ -577,9 +583,9 @@ class CI_Image_lib {
 		{
 			switch ($this->rotation_angle)
 			{
-				case 'hor' 	: $angle = '-flop';
+				case 'hor'	: $angle = '-flop';
 					break;
-				case 'vrt' 	: $angle = '-flip';
+				case 'vrt'	: $angle = '-flip';
 					break;
 				default		: $angle = '-rotate '.$this->rotation_angle;
 					break;
@@ -604,7 +610,7 @@ class CI_Image_lib {
 		}
 
 		// Set the file to 777
-		@chmod($this->full_dst_path, DIR_WRITE_MODE);
+		@chmod($this->full_dst_path, FILE_WRITE_MODE);
 
 		return TRUE;
 	}
@@ -657,7 +663,7 @@ class CI_Image_lib {
 					break;
 				case 180	:	$angle = 'r180';
 					break;
-				case 270 	:	$angle = 'r90';
+				case 270	:	$angle = 'r90';
 					break;
 				case 'vrt'	:	$angle = 'tb';
 					break;
@@ -690,7 +696,7 @@ class CI_Image_lib {
 		// we have to rename the temp file.
 		copy ($this->dest_folder.'netpbm.tmp', $this->full_dst_path);
 		unlink ($this->dest_folder.'netpbm.tmp');
-		@chmod($this->full_dst_path, DIR_WRITE_MODE);
+		@chmod($this->full_dst_path, FILE_WRITE_MODE);
 
 		return TRUE;
 	}
@@ -705,14 +711,6 @@ class CI_Image_lib {
 	 */
 	function image_rotate_gd()
 	{
-		// Is Image Rotation Supported?
-		// this function is only supported as of PHP 4.3
-		if ( ! function_exists('imagerotate'))
-		{
-			$this->set_error('imglib_rotate_unsupported');
-			return FALSE;
-		}
-
 		//  Create the image handle
 		if ( ! ($src_img = $this->image_create_gd()))
 		{
@@ -749,7 +747,7 @@ class CI_Image_lib {
 
 		// Set the file to 777
 
-		@chmod($this->full_dst_path, DIR_WRITE_MODE);
+		@chmod($this->full_dst_path, FILE_WRITE_MODE);
 
 		return true;
 	}
@@ -833,7 +831,7 @@ class CI_Image_lib {
 		imagedestroy($src_img);
 
 		// Set the file to 777
-		@chmod($this->full_dst_path, DIR_WRITE_MODE);
+		@chmod($this->full_dst_path, FILE_WRITE_MODE);
 
 		return TRUE;
 	}
@@ -882,7 +880,7 @@ class CI_Image_lib {
 		$this->get_image_properties();
 
 		//  Fetch watermark image properties
-		$props 			= $this->get_image_properties($this->wm_overlay_path, TRUE);
+		$props			= $this->get_image_properties($this->wm_overlay_path, TRUE);
 		$wm_img_type	= $props['image_type'];
 		$wm_width		= $props['width'];
 		$wm_height		= $props['height'];
@@ -937,7 +935,7 @@ class CI_Image_lib {
 		if ($wm_img_type == 3 AND function_exists('imagealphablending'))
 		{
 			@imagealphablending($src_img, TRUE);
-		} 
+		}
 
 		// Set RGB values for text and shadow
 		$rgba = imagecolorat($wm_img, $this->wm_x_transp, $this->wm_y_transp);
@@ -1208,11 +1206,6 @@ class CI_Image_lib {
 							return FALSE;
 						}
 
-						if (phpversion() == '4.4.1')
-						{
-							@touch($this->full_dst_path); // PHP 4.4.1 bug #35060 - workaround
-						}
-
 						if ( ! @imagejpeg($resource, $this->full_dst_path, $this->quality))
 						{
 							$this->set_error('imglib_save_failed');
@@ -1259,7 +1252,7 @@ class CI_Image_lib {
 
 		switch ($this->image_type)
 		{
-			case 1 		:	imagegif($resource);
+			case 1		:	imagegif($resource);
 				break;
 			case 2		:	imagejpeg($resource, '', $this->quality);
 				break;
@@ -1377,8 +1370,8 @@ class CI_Image_lib {
 	 * new variable needs to be known
 	 *
 	 *	$props = array(
-	 *					'width' 		=> $width,
-	 *					'height' 		=> $height,
+	 *					'width'			=> $width,
+	 *					'height'		=> $height,
 	 *					'new_width'		=> 40,
 	 *					'new_height'	=> ''
 	 *				  );
@@ -1439,7 +1432,7 @@ class CI_Image_lib {
 	{
 		$ext = strrchr($source_image, '.');
 		$name = ($ext === FALSE) ? $source_image : substr($source_image, 0, -strlen($ext));
-		
+
 		return array('ext' => $ext, 'name' => $name);
 	}
 
diff --git a/system/libraries/Input.php b/system/libraries/Input.php
deleted file mode 100644
index 396815194..000000000
--- a/system/libraries/Input.php
+++ /dev/null
@@ -1,1067 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * Input Class
- *
- * Pre-processes global input data for security
- *
- * @package		CodeIgniter
- * @subpackage	Libraries
- * @category	Input
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/libraries/input.html
- */
-class CI_Input {
-	var $use_xss_clean		= FALSE;
-	var $xss_hash			= '';
-	var $ip_address			= FALSE;
-	var $user_agent			= FALSE;
-	var $allow_get_array	= FALSE;
-
-	/* never allowed, string replacement */
-	var $never_allowed_str = array(
-									'document.cookie'	=> '[removed]',
-									'document.write'	=> '[removed]',
-									'.parentNode'		=> '[removed]',
-									'.innerHTML'		=> '[removed]',
-									'window.location'	=> '[removed]',
-									'-moz-binding'		=> '[removed]',
-									'<!--'				=> '&lt;!--',
-									'-->'				=> '--&gt;',
-									'<![CDATA['			=> '&lt;![CDATA['
-									);
-	/* never allowed, regex replacement */
-	var $never_allowed_regex = array(
-										"javascript\s*:"			=> '[removed]',
-										"expression\s*(\(|&\#40;)"	=> '[removed]', // CSS and IE
-										"vbscript\s*:"				=> '[removed]', // IE, surprise!
-										"Redirect\s+302"			=> '[removed]'
-									);
-
-	/**
-	* Constructor
-	*
-	* Sets whether to globally enable the XSS processing
-	* and whether to allow the $_GET array
-	*
-	* @access	public
-	*/
-	function CI_Input()
-	{
-		log_message('debug', "Input Class Initialized");
-
-		$CFG =& load_class('Config');
-		$this->use_xss_clean	= ($CFG->item('global_xss_filtering') === TRUE) ? TRUE : FALSE;
-		$this->allow_get_array	= ($CFG->item('enable_query_strings') === TRUE) ? TRUE : FALSE;
-		$this->_sanitize_globals();
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Sanitize Globals
-	*
-	* This function does the following:
-	*
-	* Unsets $_GET data (if query strings are not enabled)
-	*
-	* Unsets all globals if register_globals is enabled
-	*
-	* Standardizes newline characters to \n
-	*
-	* @access	private
-	* @return	void
-	*/
-	function _sanitize_globals()
-	{
-		// Would kind of be "wrong" to unset any of these GLOBALS
-		$protected = array('_SERVER', '_GET', '_POST', '_FILES', '_REQUEST', '_SESSION', '_ENV', 'GLOBALS', 'HTTP_RAW_POST_DATA',
-							'system_folder', 'application_folder', 'BM', 'EXT', 'CFG', 'URI', 'RTR', 'OUT', 'IN');
-
-		// Unset globals for security. 
-		// This is effectively the same as register_globals = off
-		foreach (array($_GET, $_POST, $_COOKIE, $_SERVER, $_FILES, $_ENV, (isset($_SESSION) && is_array($_SESSION)) ? $_SESSION : array()) as $global)
-		{
-			if ( ! is_array($global))
-			{
-				if ( ! in_array($global, $protected))
-				{
-					unset($GLOBALS[$global]);
-				}
-			}
-			else
-			{
-				foreach ($global as $key => $val)
-				{
-					if ( ! in_array($key, $protected))
-					{
-						unset($GLOBALS[$key]);
-					}
-
-					if (is_array($val))
-					{
-						foreach($val as $k => $v)
-						{
-							if ( ! in_array($k, $protected))
-							{
-								unset($GLOBALS[$k]);
-							}
-						}
-					}
-				}
-			}
-		}
-
-		// Is $_GET data allowed? If not we'll set the $_GET to an empty array
-		if ($this->allow_get_array == FALSE)
-		{
-			$_GET = array();
-		}
-		else
-		{
-			$_GET = $this->_clean_input_data($_GET);
-		}
-
-		// Clean $_POST Data
-		$_POST = $this->_clean_input_data($_POST);
-
-		// Clean $_COOKIE Data
-		// Also get rid of specially treated cookies that might be set by a server
-		// or silly application, that are of no use to a CI application anyway
-		// but that when present will trip our 'Disallowed Key Characters' alarm
-		// http://www.ietf.org/rfc/rfc2109.txt
-		// note that the key names below are single quoted strings, and are not PHP variables
-		unset($_COOKIE['$Version']);
-		unset($_COOKIE['$Path']);
-		unset($_COOKIE['$Domain']);
-		$_COOKIE = $this->_clean_input_data($_COOKIE);
-
-		log_message('debug', "Global POST and COOKIE data sanitized");
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Clean Input Data
-	*
-	* This is a helper function. It escapes data and
-	* standardizes newline characters to \n
-	*
-	* @access	private
-	* @param	string
-	* @return	string
-	*/
-	function _clean_input_data($str)
-	{
-		if (is_array($str))
-		{
-			$new_array = array();
-			foreach ($str as $key => $val)
-			{
-				$new_array[$this->_clean_input_keys($key)] = $this->_clean_input_data($val);
-			}
-			return $new_array;
-		}
-
-		// We strip slashes if magic quotes is on to keep things consistent
-		if (get_magic_quotes_gpc())
-		{
-			$str = stripslashes($str);
-		}
-
-		// Should we filter the input data?
-		if ($this->use_xss_clean === TRUE)
-		{
-			$str = $this->xss_clean($str);
-		}
-
-		// Standardize newlines
-		if (strpos($str, "\r") !== FALSE)
-		{
-			$str = str_replace(array("\r\n", "\r"), "\n", $str);
-		}
-
-		return $str;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Clean Keys
-	*
-	* This is a helper function. To prevent malicious users
-	* from trying to exploit keys we make sure that keys are
-	* only named with alpha-numeric text and a few other items.
-	*
-	* @access	private
-	* @param	string
-	* @return	string
-	*/
-	function _clean_input_keys($str)
-	{
-		if ( ! preg_match("/^[a-z0-9:_\/-]+$/i", $str))
-		{
-			exit('Disallowed Key Characters.');
-		}
-
-		return $str;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Fetch from array
-	*
-	* This is a helper function to retrieve values from global arrays
-	*
-	* @access	private
-	* @param	array
-	* @param	string
-	* @param	bool
-	* @return	string
-	*/
-	function _fetch_from_array(&$array, $index = '', $xss_clean = FALSE)
-	{
-		if ( ! isset($array[$index]))
-		{
-			return FALSE;
-		}
-
-		if ($xss_clean === TRUE)
-		{
-			return $this->xss_clean($array[$index]);
-		}
-
-		return $array[$index];
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Fetch an item from the GET array
-	*
-	* @access	public
-	* @param	string
-	* @param	bool
-	* @return	string
-	*/
-	function get($index = '', $xss_clean = FALSE)
-	{
-		return $this->_fetch_from_array($_GET, $index, $xss_clean);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Fetch an item from the POST array
-	*
-	* @access	public
-	* @param	string
-	* @param	bool
-	* @return	string
-	*/
-	function post($index = '', $xss_clean = FALSE)
-	{
-		return $this->_fetch_from_array($_POST, $index, $xss_clean);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Fetch an item from either the GET array or the POST
-	*
-	* @access	public
-	* @param	string	The index key
-	* @param	bool	XSS cleaning
-	* @return	string
-	*/
-	function get_post($index = '', $xss_clean = FALSE)
-	{
-		if ( ! isset($_POST[$index]) )
-		{
-			return $this->get($index, $xss_clean);
-		}
-		else
-		{
-			return $this->post($index, $xss_clean);
-		}
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Fetch an item from the COOKIE array
-	*
-	* @access	public
-	* @param	string
-	* @param	bool
-	* @return	string
-	*/
-	function cookie($index = '', $xss_clean = FALSE)
-	{
-		return $this->_fetch_from_array($_COOKIE, $index, $xss_clean);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Fetch an item from the SERVER array
-	*
-	* @access	public
-	* @param	string
-	* @param	bool
-	* @return	string
-	*/
-	function server($index = '', $xss_clean = FALSE)
-	{
-		return $this->_fetch_from_array($_SERVER, $index, $xss_clean);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Fetch the IP Address
-	*
-	* @access	public
-	* @return	string
-	*/
-	function ip_address()
-	{
-		if ($this->ip_address !== FALSE)
-		{
-			return $this->ip_address;
-		}
-		
-		if (config_item('proxy_ips') != '' && $this->server('HTTP_X_FORWARDED_FOR') && $this->server('REMOTE_ADDR'))
-		{
-			$proxies = preg_split('/[\s,]/', config_item('proxy_ips'), -1, PREG_SPLIT_NO_EMPTY);
-			$proxies = is_array($proxies) ? $proxies : array($proxies);
-
-			$this->ip_address = in_array($_SERVER['REMOTE_ADDR'], $proxies) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : $_SERVER['REMOTE_ADDR'];
-		}
-		elseif ($this->server('REMOTE_ADDR') AND $this->server('HTTP_CLIENT_IP'))
-		{
-			$this->ip_address = $_SERVER['HTTP_CLIENT_IP'];
-		}
-		elseif ($this->server('REMOTE_ADDR'))
-		{
-			$this->ip_address = $_SERVER['REMOTE_ADDR'];
-		}
-		elseif ($this->server('HTTP_CLIENT_IP'))
-		{
-			$this->ip_address = $_SERVER['HTTP_CLIENT_IP'];
-		}
-		elseif ($this->server('HTTP_X_FORWARDED_FOR'))
-		{
-			$this->ip_address = $_SERVER['HTTP_X_FORWARDED_FOR'];
-		}
-
-		if ($this->ip_address === FALSE)
-		{
-			$this->ip_address = '0.0.0.0';
-			return $this->ip_address;
-		}
-
-		if (strstr($this->ip_address, ','))
-		{
-			$x = explode(',', $this->ip_address);
-			$this->ip_address = trim(end($x));
-		}
-
-		if ( ! $this->valid_ip($this->ip_address))
-		{
-			$this->ip_address = '0.0.0.0';
-		}
-
-		return $this->ip_address;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Validate IP Address
-	*
-	* Updated version suggested by Geert De Deckere
-	* 
-	* @access	public
-	* @param	string
-	* @return	string
-	*/
-	function valid_ip($ip)
-	{
-		$ip_segments = explode('.', $ip);
-
-		// Always 4 segments needed
-		if (count($ip_segments) != 4)
-		{
-			return FALSE;
-		}
-		// IP can not start with 0
-		if ($ip_segments[0][0] == '0')
-		{
-			return FALSE;
-		}
-		// Check each segment
-		foreach ($ip_segments as $segment)
-		{
-			// IP segments must be digits and can not be 
-			// longer than 3 digits or greater then 255
-			if ($segment == '' OR preg_match("/[^0-9]/", $segment) OR $segment > 255 OR strlen($segment) > 3)
-			{
-				return FALSE;
-			}
-		}
-
-		return TRUE;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* User Agent
-	*
-	* @access	public
-	* @return	string
-	*/
-	function user_agent()
-	{
-		if ($this->user_agent !== FALSE)
-		{
-			return $this->user_agent;
-		}
-
-		$this->user_agent = ( ! isset($_SERVER['HTTP_USER_AGENT'])) ? FALSE : $_SERVER['HTTP_USER_AGENT'];
-
-		return $this->user_agent;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Filename Security
-	*
-	* @access	public
-	* @param	string
-	* @return	string
-	*/
-	function filename_security($str)
-	{
-		$bad = array(
-						"../",
-						"./",
-						"<!--",
-						"-->",
-						"<",
-						">",
-						"'",
-						'"',
-						'&',
-						'$',
-						'#',
-						'{',
-						'}',
-						'[',
-						']',
-						'=',
-						';',
-						'?',
-						"%20",
-						"%22",
-						"%3c",		// <
-						"%253c", 	// <
-						"%3e", 		// >
-						"%0e", 		// >
-						"%28", 		// (  
-						"%29", 		// ) 
-						"%2528", 	// (
-						"%26", 		// &
-						"%24", 		// $
-						"%3f", 		// ?
-						"%3b", 		// ;
-						"%3d"		// =
-					);
-
-		return stripslashes(str_replace($bad, '', $str));
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* XSS Clean
-	*
-	* Sanitizes data so that Cross Site Scripting Hacks can be
-	* prevented.  This function does a fair amount of work but
-	* it is extremely thorough, designed to prevent even the
-	* most obscure XSS attempts.  Nothing is ever 100% foolproof,
-	* of course, but I haven't been able to get anything passed
-	* the filter.
-	*
-	* Note: This function should only be used to deal with data
-	* upon submission.  It's not something that should
-	* be used for general runtime processing.
-	*
-	* This function was based in part on some code and ideas I
-	* got from Bitflux: http://blog.bitflux.ch/wiki/XSS_Prevention
-	*
-	* To help develop this script I used this great list of
-	* vulnerabilities along with a few other hacks I've
-	* harvested from examining vulnerabilities in other programs:
-	* http://ha.ckers.org/xss.html
-	*
-	* @access	public
-	* @param	string
-	* @return	string
-	*/
-	function xss_clean($str, $is_image = FALSE)
-	{
-		/*
-		* Is the string an array?
-		*
-		*/
-		if (is_array($str))
-		{
-			while (list($key) = each($str))
-			{
-				$str[$key] = $this->xss_clean($str[$key]);
-			}
-
-			return $str;
-		}
-
-		/*
-		* Remove Invisible Characters
-		*/
-		$str = $this->_remove_invisible_characters($str);
-
-		/*
-		* Protect GET variables in URLs
-		*/
-
-		// 901119URL5918AMP18930PROTECT8198
-
-		$str = preg_replace('|\&([a-z\_0-9]+)\=([a-z\_0-9]+)|i', $this->xss_hash()."\\1=\\2", $str);
-
-		/*
-		* Validate standard character entities
-		*
-		* Add a semicolon if missing.  We do this to enable
-		* the conversion of entities to ASCII later.
-		*
-		*/
-		$str = preg_replace('#(&\#?[0-9a-z]{2,})([\x00-\x20])*;?#i', "\\1;\\2", $str);
-
-		/*
-		* Validate UTF16 two byte encoding (x00) 
-		*
-		* Just as above, adds a semicolon if missing.
-		*
-		*/
-		$str = preg_replace('#(&\#x?)([0-9A-F]+);?#i',"\\1\\2;",$str);
-
-		/*
-		* Un-Protect GET variables in URLs
-		*/
-		$str = str_replace($this->xss_hash(), '&', $str);
-
-		/*
-		* URL Decode
-		*
-		* Just in case stuff like this is submitted:
-		*
-		* <a href="http://%77%77%77%2E%67%6F%6F%67%6C%65%2E%63%6F%6D">Google</a>
-		*
-		* Note: Use rawurldecode() so it does not remove plus signs
-		*
-		*/
-		$str = rawurldecode($str);
-
-		/*
-		* Convert character entities to ASCII 
-		*
-		* This permits our tests below to work reliably.
-		* We only convert entities that are within tags since
-		* these are the ones that will pose security problems.
-		*
-		*/
-
-		$str = preg_replace_callback("/[a-z]+=([\'\"]).*?\\1/si", array($this, '_convert_attribute'), $str);
-
-		$str = preg_replace_callback("/<\w+.*?(?=>|<|$)/si", array($this, '_html_entity_decode_callback'), $str);
-
-		/*
-		* Remove Invisible Characters Again!
-		*/
-		$str = $this->_remove_invisible_characters($str);
-
-		/*
-		* Convert all tabs to spaces
-		*
-		* This prevents strings like this: ja	vascript
-		* NOTE: we deal with spaces between characters later.
-		* NOTE: preg_replace was found to be amazingly slow here on large blocks of data,
-		* so we use str_replace.
-		*
-		*/
-
- 		if (strpos($str, "\t") !== FALSE)
-		{
-			$str = str_replace("\t", ' ', $str);
-		}
-
-		/*
-		* Capture converted string for later comparison
-		*/
-		$converted_string = $str;
-
-		/*
-		* Not Allowed Under Any Conditions
-		*/
-
-		foreach ($this->never_allowed_str as $key => $val)
-		{
-			$str = str_replace($key, $val, $str);   
-		}
-
-		foreach ($this->never_allowed_regex as $key => $val)
-		{
-			$str = preg_replace("#".$key."#i", $val, $str);   
-		}
-
-		/*
-		* Makes PHP tags safe
-		*
-		*  Note: XML tags are inadvertently replaced too:
-		*
-		*	<?xml
-		*
-		* But it doesn't seem to pose a problem.
-		*
-		*/
-		if ($is_image === TRUE)
-		{
-			// Images have a tendency to have the PHP short opening and closing tags every so often
-			// so we skip those and only do the long opening tags.
-			$str = preg_replace('/<\?(php)/i', "&lt;?\\1", $str);
-		}
-		else
-		{
-			$str = str_replace(array('<?', '?'.'>'),  array('&lt;?', '?&gt;'), $str);
-		}
-
-		/*
-		* Compact any exploded words
-		*
-		* This corrects words like:  j a v a s c r i p t
-		* These words are compacted back to their correct state.
-		*
-		*/
-		$words = array('javascript', 'expression', 'vbscript', 'script', 'applet', 'alert', 'document', 'write', 'cookie', 'window');
-		foreach ($words as $word)
-		{
-			$temp = '';
-
-			for ($i = 0, $wordlen = strlen($word); $i < $wordlen; $i++)
-			{
-				$temp .= substr($word, $i, 1)."\s*";
-			}
-
-			// We only want to do this when it is followed by a non-word character
-			// That way valid stuff like "dealer to" does not become "dealerto"
-			$str = preg_replace_callback('#('.substr($temp, 0, -3).')(\W)#is', array($this, '_compact_exploded_words'), $str);
-		}
-
-		/*
-		* Remove disallowed Javascript in links or img tags
-		* We used to do some version comparisons and use of stripos for PHP5, but it is dog slow compared
-		* to these simplified non-capturing preg_match(), especially if the pattern exists in the string
-		*/
-		do
-		{
-			$original = $str;
-
-			if (preg_match("/<a/i", $str))
-			{
-				$str = preg_replace_callback("#<a\s+([^>]*?)(>|$)#si", array($this, '_js_link_removal'), $str);
-			}
-
-			if (preg_match("/<img/i", $str))
-			{
-				$str = preg_replace_callback("#<img\s+([^>]*?)(\s?/?>|$)#si", array($this, '_js_img_removal'), $str);
-			}
-
-			if (preg_match("/script/i", $str) OR preg_match("/xss/i", $str))
-			{
-				$str = preg_replace("#<(/*)(script|xss)(.*?)\>#si", '[removed]', $str);
-			}
-		}
-		while($original != $str);
-
-		unset($original);
-
-		/*
-		* Remove JavaScript Event Handlers
-		*
-		* Note: This code is a little blunt.  It removes
-		* the event handler and anything up to the closing >,
-		* but it's unlikely to be a problem.
-		*
-		*/
-		$event_handlers = array('[^a-z_\-]on\w*','xmlns');
-
-		if ($is_image === TRUE)
-		{
-			/*
-			* Adobe Photoshop puts XML metadata into JFIF images, including namespacing, 
-			* so we have to allow this for images. -Paul
-			*/
-			unset($event_handlers[array_search('xmlns', $event_handlers)]);
-		}
-
-		$str = preg_replace("#<([^><]+?)(".implode('|', $event_handlers).")(\s*=\s*[^><]*)([><]*)#i", "<\\1\\4", $str);
-
-		/*
-		* Sanitize naughty HTML elements
-		*
-		* If a tag containing any of the words in the list
-		* below is found, the tag gets converted to entities.
-		*
-		* So this: <blink>
-		* Becomes: &lt;blink&gt;
-		*
-		*/
-		$naughty = 'alert|applet|audio|basefont|base|behavior|bgsound|blink|body|embed|expression|form|frameset|frame|head|html|ilayer|iframe|input|isindex|layer|link|meta|object|plaintext|style|script|textarea|title|video|xml|xss';
-		$str = preg_replace_callback('#<(/*\s*)('.$naughty.')([^><]*)([><]*)#is', array($this, '_sanitize_naughty_html'), $str);
-
-		/*
-		* Sanitize naughty scripting elements
-		*
-		* Similar to above, only instead of looking for
-		* tags it looks for PHP and JavaScript commands
-		* that are disallowed.  Rather than removing the
-		* code, it simply converts the parenthesis to entities
-		* rendering the code un-executable.
-		*
-		* For example:	eval('some code')
-		* Becomes:		eval&#40;'some code'&#41;
-		*
-		*/
-		$str = preg_replace('#(alert|cmd|passthru|eval|exec|expression|system|fopen|fsockopen|file|file_get_contents|readfile|unlink)(\s*)\((.*?)\)#si', "\\1\\2&#40;\\3&#41;", $str);
-
-		/*
-		* Final clean up
-		*
-		* This adds a bit of extra precaution in case
-		* something got through the above filters
-		*
-		*/
-		foreach ($this->never_allowed_str as $key => $val)
-		{
-			$str = str_replace($key, $val, $str);   
-		}
-
-		foreach ($this->never_allowed_regex as $key => $val)
-		{
-			$str = preg_replace("#".$key."#i", $val, $str);
-		}
-
-		/*
-		*  Images are Handled in a Special Way
-		*  - Essentially, we want to know that after all of the character conversion is done whether
-		*  any unwanted, likely XSS, code was found.  If not, we return TRUE, as the image is clean.
-		*  However, if the string post-conversion does not matched the string post-removal of XSS,
-		*  then it fails, as there was unwanted XSS code found and removed/changed during processing.
-		*/
-
-		if ($is_image === TRUE)
-		{
-			if ($str == $converted_string)
-			{
-				return TRUE;
-			}
-			else
-			{
-				return FALSE;
-			}
-		}
-
-		log_message('debug', "XSS Filtering completed");
-		return $str;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Random Hash for protecting URLs
-	*
-	* @access	public
-	* @return	string
-	*/
-	function xss_hash()
-	{
-		if ($this->xss_hash == '')
-		{
-			if (phpversion() >= 4.2)
-				mt_srand();
-			else
-				mt_srand(hexdec(substr(md5(microtime()), -8)) & 0x7fffffff);
-
-			$this->xss_hash = md5(time() + mt_rand(0, 1999999999));
-		}
-
-		return $this->xss_hash;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Remove Invisible Characters
-	*
-	* This prevents sandwiching null characters
-	* between ascii characters, like Java\0script.
-	*
-	* @access	public
-	* @param	string
-	* @return	string
-	*/
-	function _remove_invisible_characters($str)
-	{
-		static $non_displayables;
-
-		if ( ! isset($non_displayables))
-		{
-			// every control character except newline (dec 10), carriage return (dec 13), and horizontal tab (dec 09),
-			$non_displayables = array(
-										'/%0[0-8bcef]/',			// url encoded 00-08, 11, 12, 14, 15
-										'/%1[0-9a-f]/',				// url encoded 16-31
-										'/[\x00-\x08]/',			// 00-08
-										'/\x0b/', '/\x0c/',			// 11, 12
-										'/[\x0e-\x1f]/'				// 14-31
-									);
-		}
-
-		do
-		{
-			$cleaned = $str;
-			$str = preg_replace($non_displayables, '', $str);
-		}
-		while ($cleaned != $str);
-
-		return $str;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Compact Exploded Words
-	*
-	* Callback function for xss_clean() to remove whitespace from
-	* things like j a v a s c r i p t
-	*
-	* @access	public
-	* @param	type
-	* @return	type
-	*/
-	function _compact_exploded_words($matches)
-	{
-		return preg_replace('/\s+/s', '', $matches[1]).$matches[2];
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Sanitize Naughty HTML
-	*
-	* Callback function for xss_clean() to remove naughty HTML elements
-	*
-	* @access	private
-	* @param	array
-	* @return	string
-	*/
-	function _sanitize_naughty_html($matches)
-	{
-		// encode opening brace
-		$str = '&lt;'.$matches[1].$matches[2].$matches[3];
-
-		// encode captured opening or closing brace to prevent recursive vectors
-		$str .= str_replace(array('>', '<'), array('&gt;', '&lt;'), $matches[4]);
-
-		return $str;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* JS Link Removal
-	*
-	* Callback function for xss_clean() to sanitize links
-	* This limits the PCRE backtracks, making it more performance friendly
-	* and prevents PREG_BACKTRACK_LIMIT_ERROR from being triggered in
-	* PHP 5.2+ on link-heavy strings
-	*
-	* @access	private
-	* @param	array
-	* @return	string
-	*/
-	function _js_link_removal($match)
-	{
-		$attributes = $this->_filter_attributes(str_replace(array('<', '>'), '', $match[1]));
-		return str_replace($match[1], preg_replace("#href=.*?(alert\(|alert&\#40;|javascript\:|charset\=|window\.|document\.|\.cookie|<script|<xss|base64\s*,)#si", "", $attributes), $match[0]);
-	}
-
-	/**
-	* JS Image Removal
-	*
-	* Callback function for xss_clean() to sanitize image tags
-	* This limits the PCRE backtracks, making it more performance friendly
-	* and prevents PREG_BACKTRACK_LIMIT_ERROR from being triggered in
-	* PHP 5.2+ on image tag heavy strings
-	*
-	* @access	private
-	* @param	array
-	* @return	string
-	*/
-	function _js_img_removal($match)
-	{
-		$attributes = $this->_filter_attributes(str_replace(array('<', '>'), '', $match[1]));
-		return str_replace($match[1], preg_replace("#src=.*?(alert\(|alert&\#40;|javascript\:|charset\=|window\.|document\.|\.cookie|<script|<xss|base64\s*,)#si", "", $attributes), $match[0]);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Attribute Conversion
-	*
-	* Used as a callback for XSS Clean
-	*
-	* @access	public
-	* @param	array
-	* @return	string
-	*/
-	function _convert_attribute($match)
-	{
-		return str_replace(array('>', '<', '\\'), array('&gt;', '&lt;', '\\\\'), $match[0]);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* HTML Entity Decode Callback
-	*
-	* Used as a callback for XSS Clean
-	*
-	* @access	public
-	* @param	array
-	* @return	string
-	*/
-	function _html_entity_decode_callback($match)
-	{
-		$CFG =& load_class('Config');
-		$charset = $CFG->item('charset');
-
-		return $this->_html_entity_decode($match[0], strtoupper($charset));
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* HTML Entities Decode
-	*
-	* This function is a replacement for html_entity_decode()
-	*
-	* In some versions of PHP the native function does not work
-	* when UTF-8 is the specified character set, so this gives us
-	* a work-around.  More info here:
-	* http://bugs.php.net/bug.php?id=25670
-	*
-	* @access	private
-	* @param	string
-	* @param	string
-	* @return	string
-	*/
-	/* -------------------------------------------------
-	/*  Replacement for html_entity_decode()
-	/* -------------------------------------------------*/
-
-	/*
-	NOTE: html_entity_decode() has a bug in some PHP versions when UTF-8 is the
-	character set, and the PHP developers said they were not back porting the
-	fix to versions other than PHP 5.x.
-	*/
-	function _html_entity_decode($str, $charset='UTF-8')
-	{
-		if (stristr($str, '&') === FALSE) return $str;
-
-		// The reason we are not using html_entity_decode() by itself is because
-		// while it is not technically correct to leave out the semicolon
-		// at the end of an entity most browsers will still interpret the entity
-		// correctly.  html_entity_decode() does not convert entities without
-		// semicolons, so we are left with our own little solution here. Bummer.
-
-		if (function_exists('html_entity_decode') && (strtolower($charset) != 'utf-8' OR version_compare(phpversion(), '5.0.0', '>=')))
-		{
-			$str = html_entity_decode($str, ENT_COMPAT, $charset);
-			$str = preg_replace('~&#x(0*[0-9a-f]{2,5})~ei', 'chr(hexdec("\\1"))', $str);
-			return preg_replace('~&#([0-9]{2,4})~e', 'chr(\\1)', $str);
-		}
-
-		// Numeric Entities
-		$str = preg_replace('~&#x(0*[0-9a-f]{2,5});{0,1}~ei', 'chr(hexdec("\\1"))', $str);
-		$str = preg_replace('~&#([0-9]{2,4});{0,1}~e', 'chr(\\1)', $str);
-
-		// Literal Entities - Slightly slow so we do another check
-		if (stristr($str, '&') === FALSE)
-		{
-			$str = strtr($str, array_flip(get_html_translation_table(HTML_ENTITIES)));
-		}
-
-		return $str;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Filter Attributes
-	*
-	* Filters tag attributes for consistency and safety
-	*
-	* @access	public
-	* @param	string
-	* @return	string
-	*/
-	function _filter_attributes($str)
-	{
-		$out = '';
-
-		if (preg_match_all('#\s*[a-z\-]+\s*=\s*(\042|\047)([^\\1]*?)\\1#is', $str, $matches))
-		{
-			foreach ($matches[0] as $match)
-			{
-				$out .= preg_replace("#/\*.*?\*/#s", '', $match);
-			}
-		}
-
-		return $out;
-	}
-
-	// --------------------------------------------------------------------
-
-}
-// END Input class
-
-/* End of file Input.php */
-/* Location: ./system/libraries/Input.php */
\ No newline at end of file
diff --git a/system/libraries/Javascript.php b/system/libraries/Javascript.php
new file mode 100755
index 000000000..167859abd
--- /dev/null
+++ b/system/libraries/Javascript.php
@@ -0,0 +1,871 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Javascript Class
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Javascript
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/libraries/javascript.html
+ */
+class CI_Javascript {
+
+	var $_javascript_location = 'js';
+
+	public function __construct($params = array())
+	{
+		$defaults = array('js_library_driver' => 'jquery', 'autoload' => TRUE);
+
+		foreach ($defaults as $key => $val)
+		{
+			if (isset($params[$key]) && $params[$key] !== "")
+			{
+				$defaults[$key] = $params[$key];
+			}
+		}
+
+		extract($defaults);
+
+		$this->CI =& get_instance();
+
+		// load the requested js library
+		$this->CI->load->library('javascript/'.$js_library_driver, array('autoload' => $autoload));
+		// make js to refer to current library
+		$this->js =& $this->CI->$js_library_driver;
+
+		log_message('debug', "Javascript Class Initialized and loaded.  Driver used: $js_library_driver");
+	}
+
+	// --------------------------------------------------------------------	
+	// Event Code
+	// --------------------------------------------------------------------
+
+	/**
+	 * Blur
+	 *
+	 * Outputs a javascript library blur event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function blur($element = 'this', $js = '')
+	{
+		return $this->js->_blur($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Change
+	 *
+	 * Outputs a javascript library change event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function change($element = 'this', $js = '')
+	{
+		return $this->js->_change($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Click
+	 *
+	 * Outputs a javascript library click event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @param	boolean	whether or not to return false
+	 * @return	string
+	 */
+	function click($element = 'this', $js = '', $ret_false = TRUE)
+	{
+		return $this->js->_click($element, $js, $ret_false);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Double Click
+	 *
+	 * Outputs a javascript library dblclick event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function dblclick($element = 'this', $js = '')
+	{
+		return $this->js->_dblclick($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Error
+	 *
+	 * Outputs a javascript library error event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function error($element = 'this', $js = '')
+	{
+		return $this->js->_error($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Focus
+	 *
+	 * Outputs a javascript library focus event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function focus($element = 'this', $js = '')
+	{
+		return $this->js->__add_event($focus, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Hover
+	 *
+	 * Outputs a javascript library hover event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- Javascript code for mouse over
+	 * @param	string	- Javascript code for mouse out
+	 * @return	string
+	 */
+	function hover($element = 'this', $over, $out)
+	{
+		return $this->js->__hover($element, $over, $out);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Keydown
+	 *
+	 * Outputs a javascript library keydown event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function keydown($element = 'this', $js = '')
+	{
+		return $this->js->_keydown($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Keyup
+	 *
+	 * Outputs a javascript library keydown event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function keyup($element = 'this', $js = '')
+	{
+		return $this->js->_keyup($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Load
+	 *
+	 * Outputs a javascript library load event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function load($element = 'this', $js = '')
+	{
+		return $this->js->_load($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Mousedown
+	 *
+	 * Outputs a javascript library mousedown event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function mousedown($element = 'this', $js = '')
+	{
+		return $this->js->_mousedown($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Mouse Out
+	 *
+	 * Outputs a javascript library mouseout event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function mouseout($element = 'this', $js = '')
+	{
+		return $this->js->_mouseout($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Mouse Over
+	 *
+	 * Outputs a javascript library mouseover event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function mouseover($element = 'this', $js = '')
+	{
+		return $this->js->_mouseover($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Mouseup
+	 *
+	 * Outputs a javascript library mouseup event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function mouseup($element = 'this', $js = '')
+	{
+		return $this->js->_mouseup($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Output
+	 *
+	 * Outputs the called javascript to the screen
+	 *
+	 * @access	public
+	 * @param	string	The code to output
+	 * @return	string
+	 */
+	function output($js)
+	{
+		return $this->js->_output($js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Ready
+	 *
+	 * Outputs a javascript library mouseup event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function ready($js)
+	{
+		return $this->js->_document_ready($js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Resize
+	 *
+	 * Outputs a javascript library resize event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function resize($element = 'this', $js = '')
+	{
+		return $this->js->_resize($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Scroll
+	 *
+	 * Outputs a javascript library scroll event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function scroll($element = 'this', $js = '')
+	{
+		return $this->js->_scroll($element, $js);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Unload
+	 *
+	 * Outputs a javascript library unload event
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function unload($element = 'this', $js = '')
+	{
+		return $this->js->_unload($element, $js);
+	}
+
+	// --------------------------------------------------------------------	
+	// Effects
+	// --------------------------------------------------------------------
+
+
+	/**
+	 * Add Class
+	 *
+	 * Outputs a javascript library addClass event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- Class to add
+	 * @return	string
+	 */
+	function addClass($element = 'this', $class = '')
+	{
+		return $this->js->_addClass($element, $class);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Animate
+	 *
+	 * Outputs a javascript library animate event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function animate($element = 'this', $params = array(), $speed = '', $extra = '')
+	{
+		return $this->js->_animate($element, $params, $speed, $extra);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Fade In
+	 *
+	 * Outputs a javascript library hide event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function fadeIn($element = 'this', $speed = '', $callback = '')
+	{
+		return $this->js->_fadeIn($element, $speed, $callback);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Fade Out
+	 *
+	 * Outputs a javascript library hide event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function fadeOut($element = 'this', $speed = '', $callback = '')
+	{
+		return $this->js->_fadeOut($element, $speed, $callback);
+	}
+	// --------------------------------------------------------------------
+
+	/**
+	 * Slide Up
+	 *
+	 * Outputs a javascript library slideUp event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function slideUp($element = 'this', $speed = '', $callback = '')
+	{
+		return $this->js->_slideUp($element, $speed, $callback);
+
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Remove Class
+	 *
+	 * Outputs a javascript library removeClass event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- Class to add
+	 * @return	string
+	 */
+	function removeClass($element = 'this', $class = '')
+	{
+		return $this->js->_removeClass($element, $class);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Slide Down
+	 *
+	 * Outputs a javascript library slideDown event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function slideDown($element = 'this', $speed = '', $callback = '')
+	{
+		return $this->js->_slideDown($element, $speed, $callback);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Slide Toggle
+	 *
+	 * Outputs a javascript library slideToggle event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function slideToggle($element = 'this', $speed = '', $callback = '')
+	{
+		return $this->js->_slideToggle($element, $speed, $callback);
+
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Hide
+	 *
+	 * Outputs a javascript library hide action
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function hide($element = 'this', $speed = '', $callback = '')
+	{
+		return $this->js->_hide($element, $speed, $callback);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Toggle
+	 *
+	 * Outputs a javascript library toggle event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @return	string
+	 */
+	function toggle($element = 'this')
+	{
+		return $this->js->_toggle($element);
+
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Toggle Class
+	 *
+	 * Outputs a javascript library toggle class event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @return	string
+	 */
+	function toggleClass($element = 'this', $class='')
+	{
+		return $this->js->_toggleClass($element, $class);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Show
+	 *
+	 * Outputs a javascript library show event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function show($element = 'this', $speed = '', $callback = '')
+	{
+		return $this->js->_show($element, $speed, $callback);
+	}
+
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Compile
+	 *
+	 * gather together all script needing to be output
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @return	string
+	 */
+	function compile($view_var = 'script_foot', $script_tags = TRUE)
+	{
+		$this->js->_compile($view_var, $script_tags);
+	}
+
+	/**
+	 * Clear Compile
+	 *
+	 * Clears any previous javascript collected for output
+	 *
+	 * @access	public
+	 * @return	void
+	 */
+	function clear_compile()
+	{
+		$this->js->_clear_compile();
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * External
+	 *
+	 * Outputs a <script> tag with the source as an external js file
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @return	string
+	 */
+	function external($external_file = '', $relative = FALSE)
+	{
+		if ($external_file !== '')
+		{
+			$this->_javascript_location = $external_file;
+		}
+		else
+		{
+			if ($this->CI->config->item('javascript_location') != '')
+			{
+				$this->_javascript_location = $this->CI->config->item('javascript_location');
+			}
+		}
+
+		if ($relative === TRUE OR strncmp($external_file, 'http://', 7) == 0 OR strncmp($external_file, 'https://', 8) == 0)
+		{
+			$str = $this->_open_script($external_file);
+		}
+		elseif (strpos($this->_javascript_location, 'http://') !== FALSE)
+		{
+			$str = $this->_open_script($this->_javascript_location.$external_file);
+		}
+		else
+		{
+			$str = $this->_open_script($this->CI->config->slash_item('base_url').$this->_javascript_location.$external_file);
+		}
+
+		$str .= $this->_close_script();
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Inline
+	 *
+	 * Outputs a <script> tag
+	 *
+	 * @access	public
+	 * @param	string	The element to attach the event to
+	 * @param	boolean	If a CDATA section should be added
+	 * @return	string
+	 */
+	function inline($script, $cdata = TRUE)
+	{
+		$str = $this->_open_script();
+		$str .= ($cdata) ? "\n// <![CDATA[\n{$script}\n// ]]>\n" : "\n{$script}\n";
+		$str .= $this->_close_script();
+
+		return $str;
+	}
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Open Script
+	 *
+	 * Outputs an opening <script>
+	 *
+	 * @access	private
+	 * @param	string
+	 * @return	string
+	 */
+	function _open_script($src = '')
+	{
+		$str = '<script type="text/javascript" charset="'.strtolower($this->CI->config->item('charset')).'"';
+		$str .= ($src == '') ? '>' : ' src="'.$src.'">';
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Close Script
+	 *
+	 * Outputs an closing </script>
+	 *
+	 * @access	private
+	 * @param	string
+	 * @return	string
+	 */
+	function _close_script($extra = "\n")
+	{
+		return "</script>$extra";
+	}
+
+
+	// --------------------------------------------------------------------
+	// --------------------------------------------------------------------
+	// AJAX-Y STUFF - still a testbed
+	// --------------------------------------------------------------------
+	// --------------------------------------------------------------------
+
+	/**
+	 * Update
+	 *
+	 * Outputs a javascript library slideDown event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function update($element = 'this', $speed = '', $callback = '')
+	{
+		return $this->js->_updater($element, $speed, $callback);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Generate JSON
+	 *
+	 * Can be passed a database result or associative array and returns a JSON formatted string
+	 *
+	 * @param	mixed	result set or array
+	 * @param	bool	match array types (defaults to objects)
+	 * @return	string	a json formatted string
+	 */
+	function generate_json($result = NULL, $match_array_type = FALSE)
+	{
+		// JSON data can optionally be passed to this function
+		// either as a database result object or an array, or a user supplied array
+		if ( ! is_null($result))
+		{
+			if (is_object($result))
+			{
+				$json_result = $result->result_array();
+			}
+			elseif (is_array($result))
+			{
+				$json_result = $result;
+			}
+			else
+			{
+				return $this->_prep_args($result);
+			}
+		}
+		else
+		{
+			return 'null';
+		}
+
+		$json = array();
+		$_is_assoc = TRUE;
+
+		if ( ! is_array($json_result) AND empty($json_result))
+		{
+			show_error("Generate JSON Failed - Illegal key, value pair.");
+		}
+		elseif ($match_array_type)
+		{
+			$_is_assoc = $this->_is_associative_array($json_result);
+		}
+
+		foreach ($json_result as $k => $v)
+		{
+			if ($_is_assoc)
+			{
+				$json[] = $this->_prep_args($k, TRUE).':'.$this->generate_json($v, $match_array_type);
+			}
+			else
+			{
+				$json[] = $this->generate_json($v, $match_array_type);
+			}
+		}
+
+		$json = implode(',', $json);
+
+		return $_is_assoc ? "{".$json."}" : "[".$json."]";
+
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Is associative array
+	 *
+	 * Checks for an associative array
+	 *
+	 * @access	public
+	 * @param	type
+	 * @return	type
+	 */
+	function _is_associative_array($arr)
+	{
+		foreach (array_keys($arr) as $key => $val)
+		{
+			if ($key !== $val)
+			{
+				return TRUE;
+			}
+		}
+
+		return FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Prep Args
+	 *
+	 * Ensures a standard json value and escapes values
+	 *
+	 * @access	public
+	 * @param	type
+	 * @return	type
+	 */
+	function _prep_args($result, $is_key = FALSE)
+	{
+		if (is_null($result))
+		{
+			return 'null';
+		}
+		elseif (is_bool($result))
+		{
+			return ($result === TRUE) ? 'true' : 'false';
+		}
+		elseif (is_string($result) OR $is_key)
+		{
+			return '"'.str_replace(array('\\', "\t", "\n", "\r", '"'), array('\\\\', '\\t', '\\n', "\\r", '\"'), $result).'"';
+		}
+		elseif (is_scalar($result))
+		{
+			return $result;
+		}
+	}
+
+	// --------------------------------------------------------------------
+}
+// END Javascript Class
+
+/* End of file Javascript.php */
+/* Location: ./system/libraries/Javascript.php */
\ No newline at end of file
diff --git a/system/libraries/Log.php b/system/libraries/Log.php
index 4e6b3bc39..fb2c5a49b 100644..100755
--- a/system/libraries/Log.php
+++ b/system/libraries/Log.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -26,87 +26,84 @@
  */
 class CI_Log {
 
-	var $log_path;
-	var $_threshold	= 1;
-	var $_date_fmt	= 'Y-m-d H:i:s';
-	var $_enabled	= TRUE;
-	var $_levels	= array('ERROR' => '1', 'DEBUG' => '2',  'INFO' => '3', 'ALL' => '4');
+	protected $_log_path;
+	protected $_threshold	= 1;
+	protected $_date_fmt	= 'Y-m-d H:i:s';
+	protected $_enabled	= TRUE;
+	protected $_levels	= array('ERROR' => '1', 'DEBUG' => '2',  'INFO' => '3', 'ALL' => '4');
 
 	/**
 	 * Constructor
-	 *
-	 * @access	public
 	 */
-	function CI_Log()
+	public function __construct()
 	{
 		$config =& get_config();
-		
-		$this->log_path = ($config['log_path'] != '') ? $config['log_path'] : BASEPATH.'logs/';
-		
-		if ( ! is_dir($this->log_path) OR ! is_really_writable($this->log_path))
+
+		$this->_log_path = ($config['log_path'] != '') ? $config['log_path'] : APPPATH.'logs/';
+
+		if ( ! is_dir($this->_log_path) OR ! is_really_writable($this->_log_path))
 		{
 			$this->_enabled = FALSE;
 		}
-		
+
 		if (is_numeric($config['log_threshold']))
 		{
 			$this->_threshold = $config['log_threshold'];
 		}
-			
+
 		if ($config['log_date_format'] != '')
 		{
 			$this->_date_fmt = $config['log_date_format'];
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Write Log File
 	 *
 	 * Generally this function will be called using the global log_message() function
 	 *
-	 * @access	public
 	 * @param	string	the error level
 	 * @param	string	the error message
 	 * @param	bool	whether the error is a native PHP error
 	 * @return	bool
-	 */		
-	function write_log($level = 'error', $msg, $php_error = FALSE)
-	{		
+	 */
+	public function write_log($level = 'error', $msg, $php_error = FALSE)
+	{
 		if ($this->_enabled === FALSE)
 		{
 			return FALSE;
 		}
-	
+
 		$level = strtoupper($level);
-		
+
 		if ( ! isset($this->_levels[$level]) OR ($this->_levels[$level] > $this->_threshold))
 		{
 			return FALSE;
 		}
-	
-		$filepath = $this->log_path.'log-'.date('Y-m-d').EXT;
+
+		$filepath = $this->_log_path.'log-'.date('Y-m-d').EXT;
 		$message  = '';
-		
+
 		if ( ! file_exists($filepath))
 		{
 			$message .= "<"."?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed'); ?".">\n\n";
 		}
-			
+
 		if ( ! $fp = @fopen($filepath, FOPEN_WRITE_CREATE))
 		{
 			return FALSE;
 		}
 
 		$message .= $level.' '.(($level == 'INFO') ? ' -' : '-').' '.date($this->_date_fmt). ' --> '.$msg."\n";
-		
-		flock($fp, LOCK_EX);	
+
+		flock($fp, LOCK_EX);
 		fwrite($fp, $message);
 		flock($fp, LOCK_UN);
 		fclose($fp);
-	
-		@chmod($filepath, FILE_WRITE_MODE); 		
+
+		@chmod($filepath, FILE_WRITE_MODE);
 		return TRUE;
 	}
 
diff --git a/system/libraries/Model.php b/system/libraries/Model.php
deleted file mode 100644
index e9c2d24d1..000000000
--- a/system/libraries/Model.php
+++ /dev/null
@@ -1,83 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * CodeIgniter Model Class
- *
- * @package		CodeIgniter
- * @subpackage	Libraries
- * @category	Libraries
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/libraries/config.html
- */
-class Model {
-
-	var $_parent_name = '';
-
-	/**
-	 * Constructor
-	 *
-	 * @access public
-	 */
-	function Model()
-	{
-		// If the magic __get() or __set() methods are used in a Model references can't be used.
-		$this->_assign_libraries( (method_exists($this, '__get') OR method_exists($this, '__set')) ? FALSE : TRUE );
-		
-		// We don't want to assign the model object to itself when using the
-		// assign_libraries function below so we'll grab the name of the model parent
-		$this->_parent_name = ucfirst(get_class($this));
-		
-		log_message('debug', "Model Class Initialized");
-	}
-
-	/**
-	 * Assign Libraries
-	 *
-	 * Creates local references to all currently instantiated objects
-	 * so that any syntax that can be legally used in a controller
-	 * can be used within models.  
-	 *
-	 * @access private
-	 */	
-	function _assign_libraries($use_reference = TRUE)
-	{
-		$CI =& get_instance();				
-		foreach (array_keys(get_object_vars($CI)) as $key)
-		{
-			if ( ! isset($this->$key) AND $key != $this->_parent_name)
-			{			
-				// In some cases using references can cause
-				// problems so we'll conditionally use them
-				if ($use_reference == TRUE)
-				{
-					$this->$key = NULL; // Needed to prevent reference errors with some configurations
-					$this->$key =& $CI->$key;
-				}
-				else
-				{
-					$this->$key = $CI->$key;
-				}
-			}
-		}		
-	}
-
-}
-// END Model Class
-
-/* End of file Model.php */
-/* Location: ./system/libraries/Model.php */
\ No newline at end of file
diff --git a/system/libraries/Pagination.php b/system/libraries/Pagination.php
index d6321f41c..1113f862f 100644..100755
--- a/system/libraries/Pagination.php
+++ b/system/libraries/Pagination.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -27,11 +27,14 @@
 class CI_Pagination {
 
 	var $base_url			= ''; // The page we are linking to
-	var $total_rows  		= ''; // Total number of items (database results)
-	var $per_page	 		= 10; // Max number of items you want shown per page
+	var $prefix				= ''; // A custom prefix added to the path.
+	var $suffix				= ''; // A custom suffix added to the path.
+
+	var $total_rows			= ''; // Total number of items (database results)
+	var $per_page			= 10; // Max number of items you want shown per page
 	var $num_links			=  2; // Number of "digit" links to show before/after the currently viewed page
-	var $cur_page	 		=  0; // The current page being viewed
-	var $first_link   		= '&lsaquo; First';
+	var $cur_page			=  0; // The current page being viewed
+	var $first_link			= '&lsaquo; First';
 	var $next_link			= '&gt;';
 	var $prev_link			= '&lt;';
 	var $last_link			= 'Last &rsaquo;';
@@ -42,6 +45,7 @@ class CI_Pagination {
 	var $first_tag_close	= '&nbsp;';
 	var $last_tag_open		= '&nbsp;';
 	var $last_tag_close		= '';
+	var $first_url			= ''; // Alternative URL for the First Page.
 	var $cur_tag_open		= '&nbsp;<strong>';
 	var $cur_tag_close		= '</strong>';
 	var $next_tag_open		= '&nbsp;';
@@ -52,6 +56,8 @@ class CI_Pagination {
 	var $num_tag_close		= '';
 	var $page_query_string	= FALSE;
 	var $query_string_segment = 'per_page';
+	var $display_pages		= TRUE;
+	var $anchor_class		= '';
 
 	/**
 	 * Constructor
@@ -59,13 +65,18 @@ class CI_Pagination {
 	 * @access	public
 	 * @param	array	initialization parameters
 	 */
-	function CI_Pagination($params = array())
+	public function __construct($params = array())
 	{
 		if (count($params) > 0)
 		{
 			$this->initialize($params);
 		}
 
+		if ($this->anchor_class != '')
+		{
+			$this->anchor_class = 'class="'.$this->anchor_class.'" ';
+		}
+
 		log_message('debug', "Pagination Class Initialized");
 	}
 
@@ -179,53 +190,77 @@ class CI_Pagination {
 			$this->base_url = rtrim($this->base_url, '/') .'/';
 		}
 
-  		// And here we go...
+		// And here we go...
 		$output = '';
 
 		// Render the "First" link
-		if  ($this->cur_page > ($this->num_links + 1))
+		if  ($this->first_link !== FALSE AND $this->cur_page > ($this->num_links + 1))
 		{
-			$output .= $this->first_tag_open.'<a href="'.$this->base_url.'">'.$this->first_link.'</a>'.$this->first_tag_close;
+			$first_url = ($this->first_url == '') ? $this->base_url : $this->first_url;
+			$output .= $this->first_tag_open.'<a '.$this->anchor_class.'href="'.$first_url.'">'.$this->first_link.'</a>'.$this->first_tag_close;
 		}
 
 		// Render the "previous" link
-		if  ($this->cur_page != 1)
+		if  ($this->prev_link !== FALSE AND $this->cur_page != 1)
 		{
 			$i = $uri_page_number - $this->per_page;
-			if ($i == 0) $i = '';
-			$output .= $this->prev_tag_open.'<a href="'.$this->base_url.$i.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
+
+			if ($i == 0 && $this->first_url != '')
+			{
+				$output .= $this->prev_tag_open.'<a '.$this->anchor_class.'href="'.$this->first_url.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
+			}
+			else
+			{
+				$i = ($i == 0) ? '' : $this->prefix.$i.$this->suffix;
+				$output .= $this->prev_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$i.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
+			}
+
 		}
 
-		// Write the digit links
-		for ($loop = $start -1; $loop <= $end; $loop++)
+		// Render the pages
+		if ($this->display_pages !== FALSE)
 		{
-			$i = ($loop * $this->per_page) - $this->per_page;
-
-			if ($i >= 0)
+			// Write the digit links
+			for ($loop = $start -1; $loop <= $end; $loop++)
 			{
-				if ($this->cur_page == $loop)
-				{
-					$output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page
-				}
-				else
+				$i = ($loop * $this->per_page) - $this->per_page;
+
+				if ($i >= 0)
 				{
-					$n = ($i == 0) ? '' : $i;
-					$output .= $this->num_tag_open.'<a href="'.$this->base_url.$n.'">'.$loop.'</a>'.$this->num_tag_close;
+					if ($this->cur_page == $loop)
+					{
+						$output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page
+					}
+					else
+					{
+						$n = ($i == 0) ? '' : $i;
+
+						if ($n == '' && $this->first_url != '')
+						{
+							$output .= $this->num_tag_open.'<a '.$this->anchor_class.'href="'.$this->first_url.'">'.$loop.'</a>'.$this->num_tag_close;
+						}
+						else
+						{
+							$n = ($n == '') ? '' : $this->prefix.$n.$this->suffix;
+
+							$output .= $this->num_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$n.'">'.$loop.'</a>'.$this->num_tag_close;
+						}
+					}
 				}
 			}
 		}
 
 		// Render the "next" link
-		if ($this->cur_page < $num_pages)
+		if ($this->next_link !== FALSE AND $this->cur_page < $num_pages)
 		{
-			$output .= $this->next_tag_open.'<a href="'.$this->base_url.($this->cur_page * $this->per_page).'">'.$this->next_link.'</a>'.$this->next_tag_close;
+			$output .= $this->next_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$this->prefix.($this->cur_page * $this->per_page).$this->suffix.'">'.$this->next_link.'</a>'.$this->next_tag_close;
 		}
 
 		// Render the "Last" link
-		if (($this->cur_page + $this->num_links) < $num_pages)
+		if ($this->last_link !== FALSE AND ($this->cur_page + $this->num_links) < $num_pages)
 		{
 			$i = (($num_pages * $this->per_page) - $this->per_page);
-			$output .= $this->last_tag_open.'<a href="'.$this->base_url.$i.'">'.$this->last_link.'</a>'.$this->last_tag_close;
+			$output .= $this->last_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$this->prefix.$i.$this->suffix.'">'.$this->last_link.'</a>'.$this->last_tag_close;
 		}
 
 		// Kill double slashes.  Note: Sometimes we can end up with a double slash
diff --git a/system/libraries/Parser.php b/system/libraries/Parser.php
index 399b14b2d..d223da020 100644..100755
--- a/system/libraries/Parser.php
+++ b/system/libraries/Parser.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -29,11 +29,11 @@ class CI_Parser {
 	var $l_delim = '{';
 	var $r_delim = '}';
 	var $object;
-		
+
 	/**
 	 *  Parse a template
 	 *
-	 * Parses pseudo-variables contained in the specified template,
+	 * Parses pseudo-variables contained in the specified template view,
 	 * replacing them with the data in the second param
 	 *
 	 * @access	public
@@ -42,38 +42,77 @@ class CI_Parser {
 	 * @param	bool
 	 * @return	string
 	 */
-	function parse($template, $data, $return = FALSE)
+	public function parse($template, $data, $return = FALSE)
 	{
 		$CI =& get_instance();
 		$template = $CI->load->view($template, $data, TRUE);
-		
+
+		return $this->_parse($template, $data, $return);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 *  Parse a String
+	 *
+	 * Parses pseudo-variables contained in the specified string,
+	 * replacing them with the data in the second param
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	array
+	 * @param	bool
+	 * @return	string
+	 */
+	function parse_string($template, $data, $return = FALSE)
+	{
+		return $this->_parse($template, $data, $return);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 *  Parse a template
+	 *
+	 * Parses pseudo-variables contained in the specified template,
+	 * replacing them with the data in the second param
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	array
+	 * @param	bool
+	 * @return	string
+	 */
+	function _parse($template, $data, $return = FALSE)
+	{
 		if ($template == '')
 		{
 			return FALSE;
 		}
-		
+
 		foreach ($data as $key => $val)
 		{
 			if (is_array($val))
 			{
-				$template = $this->_parse_pair($key, $val, $template);		
+				$template = $this->_parse_pair($key, $val, $template);
 			}
 			else
 			{
 				$template = $this->_parse_single($key, (string)$val, $template);
 			}
 		}
-		
+
 		if ($return == FALSE)
 		{
+			$CI =& get_instance();
 			$CI->output->append_output($template);
 		}
-		
+
 		return $template;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 *  Set the left/right variable delimiters
 	 *
@@ -87,9 +126,9 @@ class CI_Parser {
 		$this->l_delim = $l;
 		$this->r_delim = $r;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 *  Parse a single key/value
 	 *
@@ -103,9 +142,9 @@ class CI_Parser {
 	{
 		return str_replace($this->l_delim.$key.$this->r_delim, $val, $string);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 *  Parse a tag pair
 	 *
@@ -118,7 +157,7 @@ class CI_Parser {
 	 * @return	string
 	 */
 	function _parse_pair($variable, $data, $string)
-	{	
+	{
 		if (FALSE === ($match = $this->_match_pair($string, $variable)))
 		{
 			return $string;
@@ -139,15 +178,15 @@ class CI_Parser {
 					$temp = $this->_parse_pair($key, $val, $temp);
 				}
 			}
-			
+
 			$str .= $temp;
 		}
-		
+
 		return str_replace($match['0'], $str, $string);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 *  Matches a variable pair
 	 *
@@ -158,11 +197,11 @@ class CI_Parser {
 	 */
 	function _match_pair($string, $variable)
 	{
-		if ( ! preg_match("|".$this->l_delim . $variable . $this->r_delim."(.+?)".$this->l_delim . '/' . $variable . $this->r_delim."|s", $string, $match))
+		if ( ! preg_match("|" . preg_quote($this->l_delim) . $variable . preg_quote($this->r_delim) . "(.+?)". preg_quote($this->l_delim) . '/' . $variable . preg_quote($this->r_delim) . "|s", $string, $match))
 		{
 			return FALSE;
 		}
-		
+
 		return $match;
 	}
 
@@ -170,4 +209,4 @@ class CI_Parser {
 // END Parser Class
 
 /* End of file Parser.php */
-/* Location: ./system/libraries/Parser.php */
\ No newline at end of file
+/* Location: ./system/libraries/Parser.php */
diff --git a/system/libraries/Profiler.php b/system/libraries/Profiler.php
index 84f7871b5..6587eae0b 100644..100755
--- a/system/libraries/Profiler.php
+++ b/system/libraries/Profiler.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -33,13 +33,57 @@
 class CI_Profiler {
 
 	var $CI;
- 	
- 	function CI_Profiler()
- 	{
- 		$this->CI =& get_instance();
- 		$this->CI->load->language('profiler');
- 	}
- 	
+
+	protected $_available_sections = array(
+										'benchmarks',
+										'get',
+										'memory_usage',
+										'post',
+										'uri_string',
+										'controller_info',
+										'queries',
+										'http_headers',
+										'config'
+										);
+
+	public function __construct($config = array())
+	{
+		$this->CI =& get_instance();
+		$this->CI->load->language('profiler');
+
+		// default all sections to display
+		foreach ($this->_available_sections as $section)
+		{
+			if ( ! isset($config[$section]))
+			{
+				$this->_compile_{$section} = TRUE;
+			}
+		}
+
+		$this->set_sections($config);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Set Sections
+	 *
+	 * Sets the private _compile_* properties to enable/disable Profiler sections
+	 *
+	 * @param	mixed
+	 * @return	void
+	 */
+	public function set_sections($config)
+	{
+		foreach ($config as $method => $enable)
+		{
+			if (in_array($method, $this->_available_sections))
+			{
+				$this->_compile_{$method} = ($enable !== FALSE) ? TRUE : FALSE;
+			}
+		}
+	}
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -50,57 +94,55 @@ class CI_Profiler {
 	 * and "_end" respectively).  It then compiles the execution times for
 	 * all points and returns it as an array
 	 *
-	 * @access	private
 	 * @return	array
 	 */
- 	function _compile_benchmarks()
- 	{
-  		$profile = array();
- 		foreach ($this->CI->benchmark->marker as $key => $val)
- 		{
- 			// We match the "end" marker so that the list ends
- 			// up in the order that it was defined
- 			if (preg_match("/(.+?)_end/i", $key, $match))
- 			{ 			
- 				if (isset($this->CI->benchmark->marker[$match[1].'_end']) AND isset($this->CI->benchmark->marker[$match[1].'_start']))
- 				{
- 					$profile[$match[1]] = $this->CI->benchmark->elapsed_time($match[1].'_start', $key);
- 				}
- 			}
- 		}
+	protected function _compile_benchmarks()
+	{
+		$profile = array();
+		foreach ($this->CI->benchmark->marker as $key => $val)
+		{
+			// We match the "end" marker so that the list ends
+			// up in the order that it was defined
+			if (preg_match("/(.+?)_end/i", $key, $match))
+			{
+				if (isset($this->CI->benchmark->marker[$match[1].'_end']) AND isset($this->CI->benchmark->marker[$match[1].'_start']))
+				{
+					$profile[$match[1]] = $this->CI->benchmark->elapsed_time($match[1].'_start', $key);
+				}
+			}
+		}
 
 		// Build a table containing the profile data.
 		// Note: At some point we should turn this into a template that can
 		// be modified.  We also might want to make this data available to be logged
-	
+
 		$output  = "\n\n";
-		$output .= '<fieldset style="border:1px solid #990000;padding:6px 10px 10px 10px;margin:0 0 20px 0;background-color:#eee">';
+		$output .= '<fieldset id="ci_profiler_benchmarks" style="border:1px solid #900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
+		$output .= "\n";
+		$output .= '<legend style="color:#900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_benchmarks').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";
-		$output .= '<legend style="color:#990000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_benchmarks').'&nbsp;&nbsp;</legend>';
-		$output .= "\n";			
-		$output .= "\n\n<table cellpadding='4' cellspacing='1' border='0' width='100%'>\n";
-		
+		$output .= "\n\n<table style='width:100%'>\n";
+
 		foreach ($profile as $key => $val)
 		{
 			$key = ucwords(str_replace(array('_', '-'), ' ', $key));
-			$output .= "<tr><td width='50%' style='color:#000;font-weight:bold;background-color:#ddd;'>".$key."&nbsp;&nbsp;</td><td width='50%' style='color:#990000;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";
+			$output .= "<tr><td style='padding:5px;width:50%;color:#000;font-weight:bold;background-color:#ddd;'>".$key."&nbsp;&nbsp;</td><td style='padding:5px;width:50%;color:#900;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";
 		}
-		
+
 		$output .= "</table>\n";
 		$output .= "</fieldset>";
- 		
- 		return $output;
- 	}
- 	
+
+		return $output;
+	}
+
 	// --------------------------------------------------------------------
 
 	/**
 	 * Compile Queries
 	 *
-	 * @access	private
 	 * @return	string
-	 */	
-	function _compile_queries()
+	 */
+	protected function _compile_queries()
 	{
 		$dbs = array();
 
@@ -112,100 +154,99 @@ class CI_Profiler {
 				$dbs[] = $CI_object;
 			}
 		}
-					
+
 		if (count($dbs) == 0)
 		{
 			$output  = "\n\n";
-			$output .= '<fieldset style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
+			$output .= '<fieldset id="ci_profiler_queries" style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 			$output .= "\n";
 			$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').'&nbsp;&nbsp;</legend>';
-			$output .= "\n";		
-			$output .= "\n\n<table cellpadding='4' cellspacing='1' border='0' width='100%'>\n";
-			$output .="<tr><td width='100%' style='color:#0000FF;font-weight:normal;background-color:#eee;'>".$this->CI->lang->line('profiler_no_db')."</td></tr>\n";
+			$output .= "\n";
+			$output .= "\n\n<table style='border:none; width:100%'>\n";
+			$output .="<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px'>".$this->CI->lang->line('profiler_no_db')."</td></tr>\n";
 			$output .= "</table>\n";
 			$output .= "</fieldset>";
-			
+
 			return $output;
 		}
-		
+
 		// Load the text helper so we can highlight the SQL
 		$this->CI->load->helper('text');
 
 		// Key words we want bolded
-		$highlight = array('SELECT', 'DISTINCT', 'FROM', 'WHERE', 'AND', 'LEFT&nbsp;JOIN', 'ORDER&nbsp;BY', 'GROUP&nbsp;BY', 'LIMIT', 'INSERT', 'INTO', 'VALUES', 'UPDATE', 'OR', 'HAVING', 'OFFSET', 'NOT&nbsp;IN', 'IN', 'LIKE', 'NOT&nbsp;LIKE', 'COUNT', 'MAX', 'MIN', 'ON', 'AS', 'AVG', 'SUM', '(', ')');
+		$highlight = array('SELECT', 'DISTINCT', 'FROM', 'WHERE', 'AND', 'LEFT&nbsp;JOIN', 'ORDER&nbsp;BY', 'GROUP&nbsp;BY', 'LIMIT', 'INSERT', 'INTO', 'VALUES', 'UPDATE', 'OR&nbsp;', 'HAVING', 'OFFSET', 'NOT&nbsp;IN', 'IN', 'LIKE', 'NOT&nbsp;LIKE', 'COUNT', 'MAX', 'MIN', 'ON', 'AS', 'AVG', 'SUM', '(', ')');
 
 		$output  = "\n\n";
-			
+
 		foreach ($dbs as $db)
 		{
 			$output .= '<fieldset style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 			$output .= "\n";
-			$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_database').':&nbsp; '.$db->database.'&nbsp;&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').': '.count($this->CI->db->queries).'&nbsp;&nbsp;&nbsp;</legend>';
-			$output .= "\n";		
-			$output .= "\n\n<table cellpadding='4' cellspacing='1' border='0' width='100%'>\n";
-		
+			$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_database').':&nbsp; '.$db->database.'&nbsp;&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').': '.count($db->queries).'&nbsp;&nbsp;&nbsp;</legend>';
+			$output .= "\n";
+			$output .= "\n\n<table style='width:100%;'>\n";
+
 			if (count($db->queries) == 0)
 			{
-				$output .= "<tr><td width='100%' style='color:#0000FF;font-weight:normal;background-color:#eee;'>".$this->CI->lang->line('profiler_no_queries')."</td></tr>\n";
+				$output .= "<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px;'>".$this->CI->lang->line('profiler_no_queries')."</td></tr>\n";
 			}
 			else
-			{				
+			{
 				foreach ($db->queries as $key => $val)
-				{					
+				{
 					$time = number_format($db->query_times[$key], 4);
 
 					$val = highlight_code($val, ENT_QUOTES);
-	
+
 					foreach ($highlight as $bold)
 					{
-						$val = str_replace($bold, '<strong>'.$bold.'</strong>', $val);	
+						$val = str_replace($bold, '<strong>'.$bold.'</strong>', $val);
 					}
-					
-					$output .= "<tr><td width='1%' valign='top' style='color:#990000;font-weight:normal;background-color:#ddd;'>".$time."&nbsp;&nbsp;</td><td style='color:#000;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";
+
+					$output .= "<tr><td style='padding:5px; vertical-align: top;width:1%;color:#900;font-weight:normal;background-color:#ddd;'>".$time."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";
 				}
 			}
-			
+
 			$output .= "</table>\n";
 			$output .= "</fieldset>";
-			
+
 		}
-		
+
 		return $output;
 	}
 
-	
+
 	// --------------------------------------------------------------------
 
 	/**
 	 * Compile $_GET Data
 	 *
-	 * @access	private
 	 * @return	string
-	 */	
-	function _compile_get()
-	{	
+	 */
+	protected function _compile_get()
+	{
 		$output  = "\n\n";
-		$output .= '<fieldset style="border:1px solid #cd6e00;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
+		$output .= '<fieldset id="ci_profiler_get" style="border:1px solid #cd6e00;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#cd6e00;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_get_data').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";
-				
+
 		if (count($_GET) == 0)
 		{
 			$output .= "<div style='color:#cd6e00;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_get')."</div>";
 		}
 		else
 		{
-			$output .= "\n\n<table cellpadding='4' cellspacing='1' border='0' width='100%'>\n";
-		
+			$output .= "\n\n<table style='width:100%; border:none'>\n";
+
 			foreach ($_GET as $key => $val)
 			{
 				if ( ! is_numeric($key))
 				{
 					$key = "'".$key."'";
 				}
-			
-				$output .= "<tr><td width='50%' style='color:#000;background-color:#ddd;'>&#36;_GET[".$key."]&nbsp;&nbsp; </td><td width='50%' style='color:#cd6e00;font-weight:normal;background-color:#ddd;'>";
+
+				$output .= "<tr><td style='width:50%;color:#000;background-color:#ddd;padding:5px'>&#36;_GET[".$key."]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#cd6e00;font-weight:normal;background-color:#ddd;'>";
 				if (is_array($val))
 				{
 					$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, true))) . "</pre>";
@@ -216,49 +257,48 @@ class CI_Profiler {
 				}
 				$output .= "</td></tr>\n";
 			}
-			
+
 			$output .= "</table>\n";
 		}
 		$output .= "</fieldset>";
 
-		return $output;	
+		return $output;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Compile $_POST Data
 	 *
-	 * @access	private
 	 * @return	string
-	 */	
-	function _compile_post()
-	{	
+	 */
+	protected function _compile_post()
+	{
 		$output  = "\n\n";
-		$output .= '<fieldset style="border:1px solid #009900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
+		$output .= '<fieldset id="ci_profiler_post" style="border:1px solid #009900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#009900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_post_data').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";
-				
+
 		if (count($_POST) == 0)
 		{
 			$output .= "<div style='color:#009900;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_post')."</div>";
 		}
 		else
 		{
-			$output .= "\n\n<table cellpadding='4' cellspacing='1' border='0' width='100%'>\n";
-		
+			$output .= "\n\n<table style='width:100%'>\n";
+
 			foreach ($_POST as $key => $val)
 			{
 				if ( ! is_numeric($key))
 				{
 					$key = "'".$key."'";
 				}
-			
-				$output .= "<tr><td width='50%' style='color:#000;background-color:#ddd;'>&#36;_POST[".$key."]&nbsp;&nbsp; </td><td width='50%' style='color:#009900;font-weight:normal;background-color:#ddd;'>";
+
+				$output .= "<tr><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>&#36;_POST[".$key."]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#009900;font-weight:normal;background-color:#ddd;'>";
 				if (is_array($val))
 				{
-					$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, true))) . "</pre>";
+					$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, TRUE))) . "</pre>";
 				}
 				else
 				{
@@ -266,118 +306,188 @@ class CI_Profiler {
 				}
 				$output .= "</td></tr>\n";
 			}
-			
+
 			$output .= "</table>\n";
 		}
 		$output .= "</fieldset>";
 
-		return $output;	
+		return $output;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Show query string
 	 *
-	 * @access	private
 	 * @return	string
-	 */	
-	function _compile_uri_string()
-	{	
+	 */
+	protected function _compile_uri_string()
+	{
 		$output  = "\n\n";
-		$output .= '<fieldset style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
+		$output .= '<fieldset id="ci_profiler_uri_string" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_uri_string').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";
-		
+
 		if ($this->CI->uri->uri_string == '')
 		{
 			$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_uri')."</div>";
 		}
 		else
 		{
-			$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->uri->uri_string."</div>";				
+			$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->uri->uri_string."</div>";
 		}
-		
+
 		$output .= "</fieldset>";
 
-		return $output;	
+		return $output;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Show the controller and function that were called
 	 *
-	 * @access	private
 	 * @return	string
-	 */	
-	function _compile_controller_info()
-	{	
+	 */
+	protected function _compile_controller_info()
+	{
 		$output  = "\n\n";
-		$output .= '<fieldset style="border:1px solid #995300;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
+		$output .= '<fieldset id="ci_profiler_controller_info" style="border:1px solid #995300;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#995300;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_controller_info').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";
-		
-		$output .= "<div style='color:#995300;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->router->fetch_class()."/".$this->CI->router->fetch_method()."</div>";				
 
-		
+		$output .= "<div style='color:#995300;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->router->fetch_class()."/".$this->CI->router->fetch_method()."</div>";
+
 		$output .= "</fieldset>";
 
-		return $output;	
+		return $output;
 	}
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Compile memory usage
 	 *
 	 * Display total used memory
 	 *
-	 * @access	public
 	 * @return	string
 	 */
-	function _compile_memory_usage()
+	protected function _compile_memory_usage()
 	{
 		$output  = "\n\n";
-		$output .= '<fieldset style="border:1px solid #5a0099;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
+		$output .= '<fieldset id="ci_profiler_memory_usage" style="border:1px solid #5a0099;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#5a0099;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_memory_usage').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";
-		
+
 		if (function_exists('memory_get_usage') && ($usage = memory_get_usage()) != '')
 		{
 			$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".number_format($usage).' bytes</div>';
 		}
 		else
 		{
-			$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_memory_usage')."</div>";				
+			$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_memory_usage')."</div>";
+		}
+
+		$output .= "</fieldset>";
+
+		return $output;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Compile header information
+	 *
+	 * Lists HTTP headers
+	 *
+	 * @return	string
+	 */
+	protected function _compile_http_headers()
+	{
+		$output  = "\n\n";
+		$output .= '<fieldset id="ci_profiler_http_headers" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
+		$output .= "\n";
+		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_headers').'&nbsp;&nbsp;</legend>';
+		$output .= "\n";
+
+		$output .= "\n\n<table style='width:100%'>\n";
+
+		foreach(array('HTTP_ACCEPT', 'HTTP_USER_AGENT', 'HTTP_CONNECTION', 'SERVER_PORT', 'SERVER_NAME', 'REMOTE_ADDR', 'SERVER_SOFTWARE', 'HTTP_ACCEPT_LANGUAGE', 'SCRIPT_NAME', 'REQUEST_METHOD',' HTTP_HOST', 'REMOTE_HOST', 'CONTENT_TYPE', 'SERVER_PROTOCOL', 'QUERY_STRING', 'HTTP_ACCEPT_ENCODING', 'HTTP_X_FORWARDED_FOR') as $header)
+		{
+			$val = (isset($_SERVER[$header])) ? $_SERVER[$header] : '';
+			$output .= "<tr><td style='vertical-align: top;width:50%;padding:5px;color:#900;background-color:#ddd;'>".$header."&nbsp;&nbsp;</td><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>".$val."</td></tr>\n";
 		}
-		
+
+		$output .= "</table>\n";
+		$output .= "</fieldset>";
+
+		return $output;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Compile config information
+	 *
+	 * Lists developer config variables
+	 *
+	 * @return	string
+	 */
+	protected function _compile_config()
+	{
+		$output  = "\n\n";
+		$output .= '<fieldset id="ci_profiler_config" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
+		$output .= "\n";
+		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_config').'&nbsp;&nbsp;</legend>';
+		$output .= "\n";
+
+		$output .= "\n\n<table style='width:100%'>\n";
+
+		foreach($this->CI->config->config as $config=>$val)
+		{
+			if (is_array($val))
+			{
+				$val = print_r($val, TRUE);
+			}
+
+			$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>".$config."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;background-color:#ddd;'>".htmlspecialchars($val)."</td></tr>\n";
+		}
+
+		$output .= "</table>\n";
 		$output .= "</fieldset>";
 
 		return $output;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Run the Profiler
 	 *
-	 * @access	private
 	 * @return	string
-	 */	
-	function run()
+	 */
+	public function run()
 	{
 		$output = "<div id='codeigniter_profiler' style='clear:both;background-color:#fff;padding:10px;'>";
+		$fields_displayed = 0;
 
-		$output .= $this->_compile_uri_string();
-		$output .= $this->_compile_controller_info();
-		$output .= $this->_compile_memory_usage();
-		$output .= $this->_compile_benchmarks();
-		$output .= $this->_compile_get();
-		$output .= $this->_compile_post();
-		$output .= $this->_compile_queries();
+		foreach ($this->_available_sections as $section)
+		{
+			if ($this->_compile_{$section} !== FALSE)
+			{
+				$func = "_compile_{$section}";
+				$output .= $this->{$func}();
+				$fields_displayed++;
+			}
+		}
+
+		if ($fields_displayed == 0)
+		{
+			$output .= '<p style="border:1px solid #5a0099;padding:10px;margin:20px 0;background-color:#eee">'.$this->CI->lang->line('profiler_no_profiles').'</p>';
+		}
 
 		$output .= '</div>';
 
diff --git a/system/libraries/Security.php b/system/libraries/Security.php
new file mode 100755
index 000000000..ba64c7326
--- /dev/null
+++ b/system/libraries/Security.php
@@ -0,0 +1,737 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Security Class
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Security
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/libraries/sessions.html
+ */
+class CI_Security {
+
+	public $xss_hash			= '';
+	public $csrf_hash			= '';
+	public $csrf_expire			= 7200;  // Two hours (in seconds)
+	public $csrf_token_name		= 'ci_csrf_token';
+	public $csrf_cookie_name	= 'ci_csrf_token';
+
+	/* never allowed, string replacement */
+	public $never_allowed_str = array(
+									'document.cookie'	=> '[removed]',
+									'document.write'	=> '[removed]',
+									'.parentNode'		=> '[removed]',
+									'.innerHTML'		=> '[removed]',
+									'window.location'	=> '[removed]',
+									'-moz-binding'		=> '[removed]',
+									'<!--'				=> '&lt;!--',
+									'-->'				=> '--&gt;',
+									'<![CDATA['			=> '&lt;![CDATA['
+									);
+	/* never allowed, regex replacement */
+	public $never_allowed_regex = array(
+										"javascript\s*:"			=> '[removed]',
+										"expression\s*(\(|&\#40;)"	=> '[removed]', // CSS and IE
+										"vbscript\s*:"				=> '[removed]', // IE, surprise!
+										"Redirect\s+302"			=> '[removed]'
+									);
+
+	public function __construct()
+	{
+		$this->csrf_token_name = (config_item('csrf_token_name')) ? config_item('csrf_token_name') : 'csrf_token_name';
+		$this->csrf_cookie_name = (config_item('csrf_cookie_name')) ? config_item('csrf_cookie_name') : 'csrf_cookie_name';
+		$this->csrf_expire = (config_item('csrf_expire')) ? config_item('csrf_expire') : 7200;
+
+		// Append application specific cookie prefix to token name
+		$this->csrf_cookie_name = (config_item('cookie_prefix')) ? config_item('cookie_prefix').$this->csrf_token_name : $this->csrf_token_name;
+
+		// Set the CSRF hash
+		$this->_csrf_set_hash();
+
+		log_message('debug', "Security Class Initialized");
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Verify Cross Site Request Forgery Protection
+	 *
+	 * @access	public
+	 * @return	null
+	 */
+	public function csrf_verify()
+	{
+		// If no POST data exists we will set the CSRF cookie
+		if (count($_POST) == 0)
+		{
+			return $this->csrf_set_cookie();
+		}
+
+		// Do the tokens exist in both the _POST and _COOKIE arrays?
+		if ( ! isset($_POST[$this->csrf_token_name]) OR ! isset($_COOKIE[$this->csrf_cookie_name]))
+		{
+			$this->csrf_show_error();
+		}
+
+		// Do the tokens match?
+		if ($_POST[$this->csrf_token_name] != $_COOKIE[$this->csrf_cookie_name])
+		{
+			$this->csrf_show_error();
+		}
+
+		// We kill this since we're done and we don't want to polute the _POST array
+		unset($_POST[$this->csrf_token_name]);
+
+		// Nothing should last forever
+		unset($_COOKIE[$this->csrf_cookie_name]);
+		$this->_csrf_set_hash();
+		$this->csrf_set_cookie();
+
+		log_message('debug', "CSRF token verified ");
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Set Cross Site Request Forgery Protection Cookie
+	 *
+	 * @access	public
+	 * @return	null
+	 */
+	public function csrf_set_cookie()
+	{
+		$expire = time() + $this->csrf_expire;
+
+		setcookie($this->csrf_cookie_name, $this->csrf_hash, $expire, config_item('cookie_path'), config_item('cookie_domain'), 0);
+
+		log_message('debug', "CRSF cookie Set");
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Set Cross Site Request Forgery Protection Cookie
+	 *
+	 * @access	private
+	 * @return	null
+	 */
+	private function _csrf_set_hash()
+	{
+		if ($this->csrf_hash == '')
+		{
+			// If the cookie exists we will use it's value.  We don't necessarily want to regenerate it with
+			// each page load since a page could contain embedded sub-pages causing this feature to fail
+			if (isset($_COOKIE[$this->csrf_cookie_name]) AND $_COOKIE[$this->csrf_cookie_name] != '')
+			{
+				$this->csrf_hash = $_COOKIE[$this->csrf_cookie_name];
+			}
+			else
+			{
+				$this->csrf_hash = md5(uniqid(rand(), TRUE));
+			}
+		}
+
+		return $this->csrf_hash;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Show CSRF Error
+	 *
+	 * @access	public
+	 * @return	null
+	 */
+	public function csrf_show_error()
+	{
+		show_error('The action you have requested is not allowed.');
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * XSS Clean
+	 *
+	 * Sanitizes data so that Cross Site Scripting Hacks can be
+	 * prevented.  This function does a fair amount of work but
+	 * it is extremely thorough, designed to prevent even the
+	 * most obscure XSS attempts.  Nothing is ever 100% foolproof,
+	 * of course, but I haven't been able to get anything passed
+	 * the filter.
+	 *
+	 * Note: This function should only be used to deal with data
+	 * upon submission.  It's not something that should
+	 * be used for general runtime processing.
+	 *
+	 * This function was based in part on some code and ideas I
+	 * got from Bitflux: http://channel.bitflux.ch/wiki/XSS_Prevention
+	 *
+	 * To help develop this script I used this great list of
+	 * vulnerabilities along with a few other hacks I've
+	 * harvested from examining vulnerabilities in other programs:
+	 * http://ha.ckers.org/xss.html
+	 *
+	 * @access	public
+	 * @param	mixed	string or array
+	 * @return	string
+	 */
+	public function xss_clean($str, $is_image = FALSE)
+	{
+		/*
+		 * Is the string an array?
+		 *
+		 */
+		if (is_array($str))
+		{
+			while (list($key) = each($str))
+			{
+				$str[$key] = $this->xss_clean($str[$key]);
+			}
+
+			return $str;
+		}
+
+		/*
+		 * Remove Invisible Characters
+		 */
+		$str = remove_invisible_characters($str);
+
+		/*
+		 * Protect GET variables in URLs
+		 */
+
+		 // 901119URL5918AMP18930PROTECT8198
+
+		$str = preg_replace('|\&([a-z\_0-9\-]+)\=([a-z\_0-9\-]+)|i', $this->xss_hash()."\\1=\\2", $str);
+
+		/*
+		 * Validate standard character entities
+		 *
+		 * Add a semicolon if missing.  We do this to enable
+		 * the conversion of entities to ASCII later.
+		 *
+		 */
+		$str = preg_replace('#(&\#?[0-9a-z]{2,})([\x00-\x20])*;?#i', "\\1;\\2", $str);
+
+		/*
+		 * Validate UTF16 two byte encoding (x00)
+		 *
+		 * Just as above, adds a semicolon if missing.
+		 *
+		 */
+		$str = preg_replace('#(&\#x?)([0-9A-F]+);?#i',"\\1\\2;",$str);
+
+		/*
+		 * Un-Protect GET variables in URLs
+		 */
+		$str = str_replace($this->xss_hash(), '&', $str);
+
+		/*
+		 * URL Decode
+		 *
+		 * Just in case stuff like this is submitted:
+		 *
+		 * <a href="http://%77%77%77%2E%67%6F%6F%67%6C%65%2E%63%6F%6D">Google</a>
+		 *
+		 * Note: Use rawurldecode() so it does not remove plus signs
+		 *
+		 */
+		$str = rawurldecode($str);
+
+		/*
+		 * Convert character entities to ASCII
+		 *
+		 * This permits our tests below to work reliably.
+		 * We only convert entities that are within tags since
+		 * these are the ones that will pose security problems.
+		 *
+		 */
+
+		$str = preg_replace_callback("/[a-z]+=([\'\"]).*?\\1/si", array($this, '_convert_attribute'), $str);
+
+		$str = preg_replace_callback("/<\w+.*?(?=>|<|$)/si", array($this, '_decode_entity'), $str);
+
+		/*
+		 * Remove Invisible Characters Again!
+		 */
+		$str = remove_invisible_characters($str);
+
+		/*
+		 * Convert all tabs to spaces
+		 *
+		 * This prevents strings like this: ja	vascript
+		 * NOTE: we deal with spaces between characters later.
+		 * NOTE: preg_replace was found to be amazingly slow here on large blocks of data,
+		 * so we use str_replace.
+		 *
+		 */
+
+		if (strpos($str, "\t") !== FALSE)
+		{
+			$str = str_replace("\t", ' ', $str);
+		}
+
+		/*
+		 * Capture converted string for later comparison
+		 */
+		$converted_string = $str;
+
+		/*
+		 * Not Allowed Under Any Conditions
+		 */
+
+		foreach ($this->never_allowed_str as $key => $val)
+		{
+			$str = str_replace($key, $val, $str);
+		}
+
+		foreach ($this->never_allowed_regex as $key => $val)
+		{
+			$str = preg_replace("#".$key."#i", $val, $str);
+		}
+
+		/*
+		 * Makes PHP tags safe
+		 *
+		 *  Note: XML tags are inadvertently replaced too:
+		 *
+		 *	<?xml
+		 *
+		 * But it doesn't seem to pose a problem.
+		 *
+		 */
+		if ($is_image === TRUE)
+		{
+			// Images have a tendency to have the PHP short opening and closing tags every so often
+			// so we skip those and only do the long opening tags.
+			$str = preg_replace('/<\?(php)/i', "&lt;?\\1", $str);
+		}
+		else
+		{
+			$str = str_replace(array('<?', '?'.'>'),  array('&lt;?', '?&gt;'), $str);
+		}
+
+		/*
+		 * Compact any exploded words
+		 *
+		 * This corrects words like:  j a v a s c r i p t
+		 * These words are compacted back to their correct state.
+		 *
+		 */
+		$words = array('javascript', 'expression', 'vbscript', 'script', 'applet', 'alert', 'document', 'write', 'cookie', 'window');
+		foreach ($words as $word)
+		{
+			$temp = '';
+
+			for ($i = 0, $wordlen = strlen($word); $i < $wordlen; $i++)
+			{
+				$temp .= substr($word, $i, 1)."\s*";
+			}
+
+			// We only want to do this when it is followed by a non-word character
+			// That way valid stuff like "dealer to" does not become "dealerto"
+			$str = preg_replace_callback('#('.substr($temp, 0, -3).')(\W)#is', array($this, '_compact_exploded_words'), $str);
+		}
+
+		/*
+		 * Remove disallowed Javascript in links or img tags
+		 * We used to do some version comparisons and use of stripos for PHP5, but it is dog slow compared
+		 * to these simplified non-capturing preg_match(), especially if the pattern exists in the string
+		 */
+		do
+		{
+			$original = $str;
+
+			if (preg_match("/<a/i", $str))
+			{
+				$str = preg_replace_callback("#<a\s+([^>]*?)(>|$)#si", array($this, '_js_link_removal'), $str);
+			}
+
+			if (preg_match("/<img/i", $str))
+			{
+				$str = preg_replace_callback("#<img\s+([^>]*?)(\s?/?>|$)#si", array($this, '_js_img_removal'), $str);
+			}
+
+			if (preg_match("/script/i", $str) OR preg_match("/xss/i", $str))
+			{
+				$str = preg_replace("#<(/*)(script|xss)(.*?)\>#si", '[removed]', $str);
+			}
+		}
+		while($original != $str);
+
+		unset($original);
+
+		/*
+		 * Remove JavaScript Event Handlers
+		 *
+		 * Note: This code is a little blunt.  It removes
+		 * the event handler and anything up to the closing >,
+		 * but it's unlikely to be a problem.
+		 *
+		 */
+		$event_handlers = array('[^a-z_\-]on\w*','xmlns');
+
+		if ($is_image === TRUE)
+		{
+			/*
+			 * Adobe Photoshop puts XML metadata into JFIF images, including namespacing,
+			 * so we have to allow this for images. -Paul
+			 */
+			unset($event_handlers[array_search('xmlns', $event_handlers)]);
+		}
+
+		$str = preg_replace("#<([^><]+?)(".implode('|', $event_handlers).")(\s*=\s*[^><]*)([><]*)#i", "<\\1\\4", $str);
+
+		/*
+		 * Sanitize naughty HTML elements
+		 *
+		 * If a tag containing any of the words in the list
+		 * below is found, the tag gets converted to entities.
+		 *
+		 * So this: <blink>
+		 * Becomes: &lt;blink&gt;
+		 *
+		 */
+		$naughty = 'alert|applet|audio|basefont|base|behavior|bgsound|blink|body|embed|expression|form|frameset|frame|head|html|ilayer|iframe|input|isindex|layer|link|meta|object|plaintext|style|script|textarea|title|video|xml|xss';
+		$str = preg_replace_callback('#<(/*\s*)('.$naughty.')([^><]*)([><]*)#is', array($this, '_sanitize_naughty_html'), $str);
+
+		/*
+		 * Sanitize naughty scripting elements
+		 *
+		 * Similar to above, only instead of looking for
+		 * tags it looks for PHP and JavaScript commands
+		 * that are disallowed.  Rather than removing the
+		 * code, it simply converts the parenthesis to entities
+		 * rendering the code un-executable.
+		 *
+		 * For example:	eval('some code')
+		 * Becomes:		eval&#40;'some code'&#41;
+		 *
+		 */
+		$str = preg_replace('#(alert|cmd|passthru|eval|exec|expression|system|fopen|fsockopen|file|file_get_contents|readfile|unlink)(\s*)\((.*?)\)#si', "\\1\\2&#40;\\3&#41;", $str);
+
+		/*
+		 * Final clean up
+		 *
+		 * This adds a bit of extra precaution in case
+		 * something got through the above filters
+		 *
+		 */
+		foreach ($this->never_allowed_str as $key => $val)
+		{
+			$str = str_replace($key, $val, $str);
+		}
+
+		foreach ($this->never_allowed_regex as $key => $val)
+		{
+			$str = preg_replace("#".$key."#i", $val, $str);
+		}
+
+		/*
+		 *  Images are Handled in a Special Way
+		 *  - Essentially, we want to know that after all of the character conversion is done whether
+		 *  any unwanted, likely XSS, code was found.  If not, we return TRUE, as the image is clean.
+		 *  However, if the string post-conversion does not matched the string post-removal of XSS,
+		 *  then it fails, as there was unwanted XSS code found and removed/changed during processing.
+		 */
+
+		if ($is_image === TRUE)
+		{
+			if ($str == $converted_string)
+			{
+				return TRUE;
+			}
+			else
+			{
+				return FALSE;
+			}
+		}
+
+		log_message('debug', "XSS Filtering completed");
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Random Hash for protecting URLs
+	 *
+	 * @access	public
+	 * @return	string
+	 */
+	public function xss_hash()
+	{
+		if ($this->xss_hash == '')
+		{
+			if (phpversion() >= 4.2)
+				mt_srand();
+			else
+				mt_srand(hexdec(substr(md5(microtime()), -8)) & 0x7fffffff);
+
+			$this->xss_hash = md5(time() + mt_rand(0, 1999999999));
+		}
+
+		return $this->xss_hash;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Compact Exploded Words
+	 *
+	 * Callback function for xss_clean() to remove whitespace from
+	 * things like j a v a s c r i p t
+	 *
+	 * @access	private
+	 * @param	type
+	 * @return	type
+	 */
+	private function _compact_exploded_words($matches)
+	{
+		return preg_replace('/\s+/s', '', $matches[1]).$matches[2];
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Sanitize Naughty HTML
+	 *
+	 * Callback function for xss_clean() to remove naughty HTML elements
+	 *
+	 * @access	private
+	 * @param	array
+	 * @return	string
+	 */
+	private function _sanitize_naughty_html($matches)
+	{
+		// encode opening brace
+		$str = '&lt;'.$matches[1].$matches[2].$matches[3];
+
+		// encode captured opening or closing brace to prevent recursive vectors
+		$str .= str_replace(array('>', '<'), array('&gt;', '&lt;'), $matches[4]);
+
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * JS Link Removal
+	 *
+	 * Callback function for xss_clean() to sanitize links
+	 * This limits the PCRE backtracks, making it more performance friendly
+	 * and prevents PREG_BACKTRACK_LIMIT_ERROR from being triggered in
+	 * PHP 5.2+ on link-heavy strings
+	 *
+	 * @access	private
+	 * @param	array
+	 * @return	string
+	 */
+	private function _js_link_removal($match)
+	{
+		$attributes = $this->_filter_attributes(str_replace(array('<', '>'), '', $match[1]));
+		return str_replace($match[1], preg_replace("#href=.*?(alert\(|alert&\#40;|javascript\:|charset\=|window\.|document\.|\.cookie|<script|<xss|base64\s*,)#si", "", $attributes), $match[0]);
+	}
+
+	/**
+	 * JS Image Removal
+	 *
+	 * Callback function for xss_clean() to sanitize image tags
+	 * This limits the PCRE backtracks, making it more performance friendly
+	 * and prevents PREG_BACKTRACK_LIMIT_ERROR from being triggered in
+	 * PHP 5.2+ on image tag heavy strings
+	 *
+	 * @access	private
+	 * @param	array
+	 * @return	string
+	 */
+	private function _js_img_removal($match)
+	{
+		$attributes = $this->_filter_attributes(str_replace(array('<', '>'), '', $match[1]));
+		return str_replace($match[1], preg_replace("#src=.*?(alert\(|alert&\#40;|javascript\:|charset\=|window\.|document\.|\.cookie|<script|<xss|base64\s*,)#si", "", $attributes), $match[0]);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Attribute Conversion
+	 *
+	 * Used as a callback for XSS Clean
+	 *
+	 * @access	private
+	 * @param	array
+	 * @return	string
+	 */
+	private function _convert_attribute($match)
+	{
+		return str_replace(array('>', '<', '\\'), array('&gt;', '&lt;', '\\\\'), $match[0]);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Filter Attributes
+	 *
+	 * Filters tag attributes for consistency and safety
+	 *
+	 * @access	private
+	 * @param	string
+	 * @return	string
+	 */
+	private function _filter_attributes($str)
+	{
+		$out = '';
+
+		if (preg_match_all('#\s*[a-z\-]+\s*=\s*(\042|\047)([^\\1]*?)\\1#is', $str, $matches))
+		{
+			foreach ($matches[0] as $match)
+			{
+				$out .= preg_replace("#/\*.*?\*/#s", '', $match);
+			}
+		}
+
+		return $out;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * HTML Entity Decode Callback
+	 *
+	 * Used as a callback for XSS Clean
+	 *
+	 * @access	private
+	 * @param	array
+	 * @return	string
+	 */
+	private function _decode_entity($match)
+	{
+		return $this->entity_decode($match[0], strtoupper(config_item('charset')));
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * HTML Entities Decode
+	 *
+	 * This function is a replacement for html_entity_decode()
+	 *
+	 * In some versions of PHP the native function does not work
+	 * when UTF-8 is the specified character set, so this gives us
+	 * a work-around.  More info here:
+	 * http://bugs.php.net/bug.php?id=25670
+	 *
+	 * NOTE: html_entity_decode() has a bug in some PHP versions when UTF-8 is the
+	 * character set, and the PHP developers said they were not back porting the
+	 * fix to versions other than PHP 5.x.
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	string
+	 * @return	string
+	 */
+	public function entity_decode($str, $charset='UTF-8')
+	{
+		if (stristr($str, '&') === FALSE) return $str;
+
+		// The reason we are not using html_entity_decode() by itself is because
+		// while it is not technically correct to leave out the semicolon
+		// at the end of an entity most browsers will still interpret the entity
+		// correctly.  html_entity_decode() does not convert entities without
+		// semicolons, so we are left with our own little solution here. Bummer.
+
+		if (function_exists('html_entity_decode') && (strtolower($charset) != 'utf-8' OR is_php('5.0.0')))
+		{
+			$str = html_entity_decode($str, ENT_COMPAT, $charset);
+			$str = preg_replace('~&#x(0*[0-9a-f]{2,5})~ei', 'chr(hexdec("\\1"))', $str);
+			return preg_replace('~&#([0-9]{2,4})~e', 'chr(\\1)', $str);
+		}
+
+		// Numeric Entities
+		$str = preg_replace('~&#x(0*[0-9a-f]{2,5});{0,1}~ei', 'chr(hexdec("\\1"))', $str);
+		$str = preg_replace('~&#([0-9]{2,4});{0,1}~e', 'chr(\\1)', $str);
+
+		// Literal Entities - Slightly slow so we do another check
+		if (stristr($str, '&') === FALSE)
+		{
+			$str = strtr($str, array_flip(get_html_translation_table(HTML_ENTITIES)));
+		}
+
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Filename Security
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	string
+	 */
+	public function sanitize_filename($str, $relative_path = FALSE)
+	{
+		$bad = array(
+						"../",
+						"<!--",
+						"-->",
+						"<",
+						">",
+						"'",
+						'"',
+						'&',
+						'$',
+						'#',
+						'{',
+						'}',
+						'[',
+						']',
+						'=',
+						';',
+						'?',
+						"%20",
+						"%22",
+						"%3c",		// <
+						"%253c",	// <
+						"%3e",		// >
+						"%0e",		// >
+						"%28",		// (
+						"%29",		// )
+						"%2528",	// (
+						"%26",		// &
+						"%24",		// $
+						"%3f",		// ?
+						"%3b",		// ;
+						"%3d"		// =
+					);
+
+		if ( ! $relative_path)
+		{
+			$bad[] = './';
+			$bad[] = '/';
+		}
+
+		return stripslashes(str_replace($bad, '', $str));
+	}
+
+}
+// END Security Class
+
+/* End of file Security.php */
+/* Location: ./system/libraries/Security.php */
\ No newline at end of file
diff --git a/system/libraries/Session.php b/system/libraries/Session.php
index bd9426818..53ff4f5d3 100644..100755
--- a/system/libraries/Session.php
+++ b/system/libraries/Session.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -30,6 +30,7 @@ class CI_Session {
 	var $sess_use_database			= FALSE;
 	var $sess_table_name			= '';
 	var $sess_expiration			= 7200;
+	var $sess_expire_on_close		= FALSE;
 	var $sess_match_ip				= FALSE;
 	var $sess_match_useragent		= TRUE;
 	var $sess_cookie_name			= 'ci_session';
@@ -38,7 +39,7 @@ class CI_Session {
 	var $cookie_domain				= '';
 	var $sess_time_to_update		= 300;
 	var $encryption_key				= '';
-	var $flashdata_key 				= 'flash';
+	var $flashdata_key				= 'flash';
 	var $time_reference				= 'time';
 	var $gc_probability				= 5;
 	var $userdata					= array();
@@ -51,7 +52,7 @@ class CI_Session {
 	 * The constructor runs the session routines automatically
 	 * whenever the class is instantiated.
 	 */
-	function CI_Session($params = array())
+	public function __construct($params = array())
 	{
 		log_message('debug', "Session Class Initialized");
 
@@ -60,11 +61,16 @@ class CI_Session {
 
 		// Set all the session preferences, which can either be set
 		// manually via the $params array above or via the config file
-		foreach (array('sess_encrypt_cookie', 'sess_use_database', 'sess_table_name', 'sess_expiration', 'sess_match_ip', 'sess_match_useragent', 'sess_cookie_name', 'cookie_path', 'cookie_domain', 'sess_time_to_update', 'time_reference', 'cookie_prefix', 'encryption_key') as $key)
+		foreach (array('sess_encrypt_cookie', 'sess_use_database', 'sess_table_name', 'sess_expiration', 'sess_expire_on_close', 'sess_match_ip', 'sess_match_useragent', 'sess_cookie_name', 'cookie_path', 'cookie_domain', 'sess_time_to_update', 'time_reference', 'cookie_prefix', 'encryption_key') as $key)
 		{
 			$this->$key = (isset($params[$key])) ? $params[$key] : $this->CI->config->item($key);
 		}
 
+		if ($this->encryption_key == '')
+		{
+			show_error('In order to use the Session class you are required to set an encryption key in your config file.');
+		}
+
 		// Load the string helper so we can use the strip_slashes() function
 		$this->CI->load->helper('string');
 
@@ -90,7 +96,7 @@ class CI_Session {
 		{
 			$this->sess_expiration = (60*60*24*365*2);
 		}
-		 
+		
 		// Set the cookie name
 		$this->sess_cookie_name = $this->cookie_prefix.$this->sess_cookie_name;
 
@@ -106,10 +112,10 @@ class CI_Session {
 		}
 
 		// Delete 'old' flashdata (from last request)
-	   	$this->_flashdata_sweep();
+		$this->_flashdata_sweep();
 
 		// Mark all new flashdata as old (data will be deleted before next request)
-	   	$this->_flashdata_mark();
+		$this->_flashdata_mark();
 
 		// Delete expired sessions if necessary
 		$this->_sess_gc();
@@ -307,9 +313,9 @@ class CI_Session {
 		$sessid .= $this->CI->input->ip_address();
 
 		$this->userdata = array(
-							'session_id' 	=> md5(uniqid($sessid, TRUE)),
-							'ip_address' 	=> $this->CI->input->ip_address(),
-							'user_agent' 	=> substr($this->CI->input->user_agent(), 0, 50),
+							'session_id'	=> md5(uniqid($sessid, TRUE)),
+							'ip_address'	=> $this->CI->input->ip_address(),
+							'user_agent'	=> substr($this->CI->input->user_agent(), 0, 50),
 							'last_activity'	=> $this->now
 							);
 
@@ -651,11 +657,13 @@ class CI_Session {
 			$cookie_data = $cookie_data.md5($cookie_data.$this->encryption_key);
 		}
 
+		$expire = ($this->sess_expire_on_close === TRUE) ? 0 : $this->sess_expiration + time();
+
 		// Set the cookie
 		setcookie(
 					$this->sess_cookie_name,
 					$cookie_data,
-					$this->sess_expiration + time(),
+					$expire,
 					$this->cookie_path,
 					$this->cookie_domain,
 					0
@@ -680,12 +688,18 @@ class CI_Session {
 		{
 			foreach ($data as $key => $val)
 			{
-				$data[$key] = str_replace('\\', '{{slash}}', $val);
+				if (is_string($val))
+				{
+					$data[$key] = str_replace('\\', '{{slash}}', $val);
+				}
 			}
 		}
 		else
 		{
-			$data = str_replace('\\', '{{slash}}', $data);
+			if (is_string($data))
+			{
+				$data = str_replace('\\', '{{slash}}', $data);
+			}
 		}
 
 		return serialize($data);
@@ -711,13 +725,16 @@ class CI_Session {
 		{
 			foreach ($data as $key => $val)
 			{
-				$data[$key] = str_replace('{{slash}}', '\\', $val);
+				if (is_string($val))
+				{
+					$data[$key] = str_replace('{{slash}}', '\\', $val);
+				}
 			}
 
 			return $data;
 		}
 
-		return str_replace('{{slash}}', '\\', $data);
+		return (is_string($data)) ? str_replace('{{slash}}', '\\', $data) : $data;
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/libraries/Sha1.php b/system/libraries/Sha1.php
index f9611a8a5..ad747a001 100644..100755
--- a/system/libraries/Sha1.php
+++ b/system/libraries/Sha1.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -44,7 +44,7 @@
  */
 class CI_SHA {
 
-	function CI_SHA()
+	public function __construct()
 	{
 		log_message('debug', "SHA1 Class Initialized");
 	}
@@ -55,7 +55,7 @@ class CI_SHA {
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function generate($str)
 	{
 		$n = ((strlen($str) + 8) >> 6) + 1;
@@ -117,7 +117,7 @@ class CI_SHA {
 
 		return $this->_hex($a).$this->_hex($b).$this->_hex($c).$this->_hex($d).$this->_hex($e);
 	}
-  	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -126,7 +126,7 @@ class CI_SHA {
 	 * @access	private
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function _hex($str)
 	{
 		$str = dechex($str);
@@ -138,7 +138,7 @@ class CI_SHA {
 
 		return $str;
 	}
-  	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -146,7 +146,7 @@ class CI_SHA {
 	 *
 	 * @access	private
 	 * @return	string
-	 */	
+	 */
 	function _ft($t, $b, $c, $d)
 	{
 		if ($t < 20)
@@ -166,7 +166,7 @@ class CI_SHA {
 	 *
 	 * @access	private
 	 * @return	string
-	 */	
+	 */
 	function _kt($t)
 	{
 		if ($t < 20)
@@ -186,7 +186,7 @@ class CI_SHA {
 			return -899497514;
 		}
 	}
-  	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -194,7 +194,7 @@ class CI_SHA {
 	 *
 	 * @access	private
 	 * @return	string
-	 */	
+	 */
 	function _safe_add($x, $y)
 	{
 		$lsw = ($x & 0xFFFF) + ($y & 0xFFFF);
@@ -202,7 +202,7 @@ class CI_SHA {
 
 		return ($msw << 16) | ($lsw & 0xFFFF);
 	}
-  	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -210,7 +210,7 @@ class CI_SHA {
 	 *
 	 * @access	private
 	 * @return	integer
-	 */	
+	 */
 	function _rol($num, $cnt)
 	{
 		return ($num << $cnt) | $this->_zero_fill($num, 32 - $cnt);
@@ -223,7 +223,7 @@ class CI_SHA {
 	 *
 	 * @access	private
 	 * @return	string
-	 */	
+	 */
 	function _zero_fill($a, $b)
 	{
 		$bin = decbin($a);
diff --git a/system/libraries/Table.php b/system/libraries/Table.php
index a990d406c..485541630 100644..100755
--- a/system/libraries/Table.php
+++ b/system/libraries/Table.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.3.1
@@ -30,14 +30,14 @@ class CI_Table {
 
 	var $rows				= array();
 	var $heading			= array();
-	var $auto_heading		= TRUE;	
-	var $caption			= NULL;	
-	var $template 			= NULL;
+	var $auto_heading		= TRUE;
+	var $caption			= NULL;
+	var $template			= NULL;
 	var $newline			= "\n";
 	var $empty_cells		= "";
-	
-	
-	function CI_Table()
+	var	$function			= FALSE;
+
+	public function __construct()
 	{
 		log_message('debug', "Table Class Initialized");
 	}
@@ -57,7 +57,7 @@ class CI_Table {
 		{
 			return FALSE;
 		}
-	
+
 		$this->template = $template;
 	}
 
@@ -75,7 +75,7 @@ class CI_Table {
 	function set_heading()
 	{
 		$args = func_get_args();
-		$this->heading = (is_array($args[0])) ? $args[0] : $args;
+		$this->heading = $this->_prep_args($args);
 	}
 
 	// --------------------------------------------------------------------
@@ -97,21 +97,21 @@ class CI_Table {
 		{
 			return FALSE;
 		}
-		
-		// Turn off the auto-heading feature since it's doubtful we 
+
+		// Turn off the auto-heading feature since it's doubtful we
 		// will want headings from a one-dimensional array
 		$this->auto_heading = FALSE;
-		
+
 		if ($col_limit == 0)
 		{
 			return $array;
 		}
-	
+
 		$new = array();
 		while(count($array) > 0)
-		{	
+		{
 			$temp = array_splice($array, 0, $col_limit);
-			
+
 			if (count($temp) < $col_limit)
 			{
 				for ($i = count($temp); $i < $col_limit; $i++)
@@ -119,10 +119,10 @@ class CI_Table {
 					$temp[] = '&nbsp;';
 				}
 			}
-			
+
 			$new[] = $temp;
 		}
-		
+
 		return $new;
 	}
 
@@ -141,7 +141,7 @@ class CI_Table {
 	{
 		$this->empty_cells = $value;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -156,7 +156,55 @@ class CI_Table {
 	function add_row()
 	{
 		$args = func_get_args();
-		$this->rows[] = (is_array($args[0])) ? $args[0] : $args;
+		$this->rows[] = $this->_prep_args($args);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Prep Args
+	 *
+	 * Ensures a standard associative array format for all cell data
+	 *
+	 * @access	public
+	 * @param	type
+	 * @return	type
+	 */
+	function _prep_args($args)
+	{
+		// If there is no $args[0], skip this and treat as an associative array
+		// This can happen if there is only a single key, for example this is passed to table->generate
+		// array(array('foo'=>'bar'))
+		if (isset($args[0]) AND (count($args) == 1 && is_array($args[0])))
+		{
+			// args sent as indexed array
+			if ( ! isset($args[0]['data']))
+			{
+				foreach ($args[0] as $key => $val)
+				{
+					if (is_array($val) && isset($val['data']))
+					{
+						$args[$key] = $val;
+					}
+					else
+					{
+						$args[$key] = array('data' => $val);
+					}
+				}
+			}
+		}
+		else
+		{
+			foreach ($args as $key => $val)
+			{
+				if ( ! is_array($val))
+				{
+					$args[$key] = array('data' => $val);
+				}
+			}
+		}
+
+		return $args;
 	}
 
 	// --------------------------------------------------------------------
@@ -171,7 +219,7 @@ class CI_Table {
 	function set_caption($caption)
 	{
 		$this->caption = $caption;
-	}	
+	}
 
 	// --------------------------------------------------------------------
 
@@ -198,21 +246,23 @@ class CI_Table {
 				$this->_set_from_array($table_data, $set_heading);
 			}
 		}
-	
+
 		// Is there anything to display?  No?  Smite them!
 		if (count($this->heading) == 0 AND count($this->rows) == 0)
 		{
 			return 'Undefined table data';
 		}
-	
+
 		// Compile and validate the template date
 		$this->_compile_template();
-	
-	
+
+		// set a custom cell manipulation function to a locally scoped variable so its callable
+		$function = $this->function;
+
 		// Build the table!
-		
+
 		$out = $this->template['table_open'];
-		$out .= $this->newline;		
+		$out .= $this->newline;
 
 		// Add any caption here
 		if ($this->caption)
@@ -225,23 +275,40 @@ class CI_Table {
 		// Is there a table heading to display?
 		if (count($this->heading) > 0)
 		{
+			$out .= $this->template['thead_open'];
+			$out .= $this->newline;
 			$out .= $this->template['heading_row_start'];
-			$out .= $this->newline;		
+			$out .= $this->newline;
 
 			foreach($this->heading as $heading)
 			{
-				$out .= $this->template['heading_cell_start'];
-				$out .= $heading;
+				$temp = $this->template['heading_cell_start'];
+
+				foreach ($heading as $key => $val)
+				{
+					if ($key != 'data')
+					{
+						$temp = str_replace('<th', "<th $key='$val'", $temp);
+					}
+				}
+
+				$out .= $temp;
+				$out .= isset($heading['data']) ? $heading['data'] : '';
 				$out .= $this->template['heading_cell_end'];
 			}
 
 			$out .= $this->template['heading_row_end'];
-			$out .= $this->newline;				
+			$out .= $this->newline;
+			$out .= $this->template['thead_close'];
+			$out .= $this->newline;
 		}
 
 		// Build the table rows
 		if (count($this->rows) > 0)
 		{
+			$out .= $this->template['tbody_open'];
+			$out .= $this->newline;
+
 			$i = 1;
 			foreach($this->rows as $row)
 			{
@@ -249,39 +316,60 @@ class CI_Table {
 				{
 					break;
 				}
-			
+
 				// We use modulus to alternate the row colors
 				$name = (fmod($i++, 2)) ? '' : 'alt_';
-			
+
 				$out .= $this->template['row_'.$name.'start'];
-				$out .= $this->newline;		
-	
+				$out .= $this->newline;
+
 				foreach($row as $cell)
 				{
-					$out .= $this->template['cell_'.$name.'start'];
-					
-					if ($cell === "")
+					$temp = $this->template['cell_'.$name.'start'];
+
+					foreach ($cell as $key => $val)
+					{
+						if ($key != 'data')
+						{
+							$temp = str_replace('<td', "<td $key='$val'", $temp);
+						}
+					}
+
+					$cell = isset($cell['data']) ? $cell['data'] : '';
+					$out .= $temp;
+
+					if ($cell === "" OR $cell === NULL)
 					{
 						$out .= $this->empty_cells;
 					}
 					else
 					{
-						$out .= $cell;
+						if ($function !== FALSE && is_callable($function))
+						{
+							$out .= call_user_func($function, $cell);
+						}
+						else
+						{
+							$out .= $cell;
+						}
 					}
-					
+
 					$out .= $this->template['cell_'.$name.'end'];
 				}
-	
+
 				$out .= $this->template['row_'.$name.'end'];
-				$out .= $this->newline;	
+				$out .= $this->newline;
 			}
+
+			$out .= $this->template['tbody_close'];
+			$out .= $this->newline;
 		}
 
 		$out .= $this->template['table_close'];
-	
+
 		return $out;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -294,9 +382,9 @@ class CI_Table {
 	{
 		$this->rows				= array();
 		$this->heading			= array();
-		$this->auto_heading		= TRUE;	
+		$this->auto_heading		= TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -312,7 +400,7 @@ class CI_Table {
 		{
 			return FALSE;
 		}
-		
+
 		// First generate the headings from the table column names
 		if (count($this->heading) == 0)
 		{
@@ -320,17 +408,17 @@ class CI_Table {
 			{
 				return FALSE;
 			}
-			
-			$this->heading = $query->list_fields();
+
+			$this->heading = $this->_prep_args($query->list_fields());
 		}
-				
+
 		// Next blast through the result array and build out the rows
-		
+
 		if ($query->num_rows() > 0)
 		{
 			foreach ($query->result_array() as $row)
 			{
-				$this->rows[] = $row;
+				$this->rows[] = $this->_prep_args($row);
 			}
 		}
 	}
@@ -350,26 +438,20 @@ class CI_Table {
 		{
 			return FALSE;
 		}
-		
+
 		$i = 0;
 		foreach ($data as $row)
 		{
-			if ( ! is_array($row))
-			{
-				$this->rows[] = $data;
-				break;
-			}
-						
 			// If a heading hasn't already been set we'll use the first row of the array as the heading
 			if ($i == 0 AND count($data) > 1 AND count($this->heading) == 0 AND $set_heading == TRUE)
 			{
-				$this->heading = $row;
+				$this->heading = $this->_prep_args($row);
 			}
 			else
 			{
-				$this->rows[] = $row;
+				$this->rows[] = $this->_prep_args($row);
 			}
-			
+
 			$i++;
 		}
 	}
@@ -382,24 +464,24 @@ class CI_Table {
 	 * @access	private
 	 * @return	void
 	 */
- 	function _compile_template()
- 	{ 	
- 		if ($this->template == NULL)
- 		{
- 			$this->template = $this->_default_template();
- 			return;
- 		}
-		
+	function _compile_template()
+	{
+		if ($this->template == NULL)
+		{
+			$this->template = $this->_default_template();
+			return;
+		}
+
 		$this->temp = $this->_default_template();
-		foreach (array('table_open','heading_row_start', 'heading_row_end', 'heading_cell_start', 'heading_cell_end', 'row_start', 'row_end', 'cell_start', 'cell_end', 'row_alt_start', 'row_alt_end', 'cell_alt_start', 'cell_alt_end', 'table_close') as $val)
+		foreach (array('table_open', 'thead_open', 'thead_close', 'heading_row_start', 'heading_row_end', 'heading_cell_start', 'heading_cell_end', 'tbody_open', 'tbody_close', 'row_start', 'row_end', 'cell_start', 'cell_end', 'row_alt_start', 'row_alt_end', 'cell_alt_start', 'cell_alt_end', 'table_close') as $val)
 		{
 			if ( ! isset($this->template[$val]))
 			{
 				$this->template[$val] = $this->temp[$val];
 			}
-		} 	
- 	}
-	
+		}
+	}
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -411,27 +493,33 @@ class CI_Table {
 	function _default_template()
 	{
 		return  array (
-						'table_open' 			=> '<table border="0" cellpadding="4" cellspacing="0">',
+						'table_open'			=> '<table border="0" cellpadding="4" cellspacing="0">',
+
+						'thead_open'			=> '<thead>',
+						'thead_close'			=> '</thead>',
 
-						'heading_row_start' 	=> '<tr>',
-						'heading_row_end' 		=> '</tr>',
+						'heading_row_start'		=> '<tr>',
+						'heading_row_end'		=> '</tr>',
 						'heading_cell_start'	=> '<th>',
 						'heading_cell_end'		=> '</th>',
 
-						'row_start' 			=> '<tr>',
-						'row_end' 				=> '</tr>',
+						'tbody_open'			=> '<tbody>',
+						'tbody_close'			=> '</tbody>',
+
+						'row_start'				=> '<tr>',
+						'row_end'				=> '</tr>',
 						'cell_start'			=> '<td>',
 						'cell_end'				=> '</td>',
 
-						'row_alt_start' 		=> '<tr>',
-						'row_alt_end' 			=> '</tr>',
+						'row_alt_start'		=> '<tr>',
+						'row_alt_end'			=> '</tr>',
 						'cell_alt_start'		=> '<td>',
 						'cell_alt_end'			=> '</td>',
 
-						'table_close' 			=> '</table>'
-					);	
+						'table_close'			=> '</table>'
+					);
 	}
-	
+
 
 }
 
diff --git a/system/libraries/Trackback.php b/system/libraries/Trackback.php
index 9b1737c5f..e29b35c7a 100644..100755
--- a/system/libraries/Trackback.php
+++ b/system/libraries/Trackback.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -27,7 +27,7 @@
  * @link		http://codeigniter.com/user_guide/libraries/trackback.html
  */
 class CI_Trackback {
-		
+
 	var $time_format	= 'local';
 	var $charset		= 'UTF-8';
 	var $data			= array('url' => '', 'title' => '', 'excerpt' => '', 'blog_name' => '', 'charset' => '');
@@ -40,28 +40,28 @@ class CI_Trackback {
 	 *
 	 * @access	public
 	 */
-	function CI_Trackback()
+	public function __construct()
 	{
 		log_message('debug', "Trackback Class Initialized");
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Send Trackback
 	 *
 	 * @access	public
 	 * @param	array
 	 * @return	bool
-	 */	
+	 */
 	function send($tb_data)
-	{		
+	{
 		if ( ! is_array($tb_data))
 		{
 			$this->set_error('The send() method must be passed an array');
 			return FALSE;
 		}
-		
+
 		// Pre-process the Trackback Data
 		foreach (array('url', 'title', 'excerpt', 'blog_name', 'ping_url') as $item)
 		{
@@ -70,14 +70,14 @@ class CI_Trackback {
 				$this->set_error('Required item missing: '.$item);
 				return FALSE;
 			}
-			
+
 			switch ($item)
 			{
 				case 'ping_url'	: $$item = $this->extract_urls($tb_data[$item]);
 					break;
 				case 'excerpt'	: $$item = $this->limit_characters($this->convert_xml(strip_tags(stripslashes($tb_data[$item]))));
 					break;
-				case 'url'	 	: $$item = str_replace('&#45;', '-', $this->convert_xml(strip_tags(stripslashes($tb_data[$item]))));
+				case 'url'		: $$item = str_replace('&#45;', '-', $this->convert_xml(strip_tags(stripslashes($tb_data[$item]))));
 					break;
 				default			: $$item = $this->convert_xml(strip_tags(stripslashes($tb_data[$item])));
 					break;
@@ -103,9 +103,9 @@ class CI_Trackback {
 
 		// Build the Trackback data string
 		$charset = ( ! isset($tb_data['charset'])) ? $this->charset : $tb_data['charset'];
-		
+
 		$data = "url=".rawurlencode($url)."&title=".rawurlencode($title)."&blog_name=".rawurlencode($blog_name)."&excerpt=".rawurlencode($excerpt)."&charset=".rawurlencode($charset);
-				
+
 		// Send Trackback(s)
 		$return = TRUE;
 		if (count($ping_url) > 0)
@@ -116,27 +116,27 @@ class CI_Trackback {
 				{
 					$return = FALSE;
 				}
-			}	
+			}
 		}
 
 		return $return;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Receive Trackback  Data
 	 *
 	 * This function simply validates the incoming TB data.
-	 * It returns false on failure and true on success.
+	 * It returns FALSE on failure and TRUE on success.
 	 * If the data is valid it is set to the $this->data array
 	 * so that it can be inserted into a database.
 	 *
 	 * @access	public
 	 * @return	bool
-	 */	
+	 */
 	function receive()
-	{  					
+	{
 		foreach (array('url', 'title', 'blog_name', 'excerpt') as $val)
 		{
 			if ( ! isset($_POST[$val]) OR $_POST[$val] == '')
@@ -144,29 +144,29 @@ class CI_Trackback {
 				$this->set_error('The following required POST variable is missing: '.$val);
 				return FALSE;
 			}
-			
+
 			$this->data['charset'] = ( ! isset($_POST['charset'])) ? 'auto' : strtoupper(trim($_POST['charset']));
-	
+
 			if ($val != 'url' && function_exists('mb_convert_encoding'))
 			{
 				$_POST[$val] = mb_convert_encoding($_POST[$val], $this->charset, $this->data['charset']);
 			}
-			
+
 			$_POST[$val] = ($val != 'url') ? $this->convert_xml(strip_tags($_POST[$val])) : strip_tags($_POST[$val]);
-			
+
 			if ($val == 'excerpt')
 			{
 				$_POST['excerpt'] = $this->limit_characters($_POST['excerpt']);
 			}
-			
+
 			$this->data[$val] = $_POST[$val];
 		}
 
 		return TRUE;
-	}	
-	
+	}
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Send Trackback Error Message
 	 *
@@ -177,15 +177,15 @@ class CI_Trackback {
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function send_error($message = 'Incomplete Information')
 	{
 		echo "<?xml version=\"1.0\" encoding=\"utf-8\"?".">\n<response>\n<error>1</error>\n<message>".$message."</message>\n</response>";
 		exit;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Send Trackback Success Message
 	 *
@@ -194,44 +194,44 @@ class CI_Trackback {
 	 *
 	 * @access	public
 	 * @return	void
-	 */		
+	 */
 	function send_success()
 	{
 		echo "<?xml version=\"1.0\" encoding=\"utf-8\"?".">\n<response>\n<error>0</error>\n</response>";
 		exit;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Fetch a particular item
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function data($item)
 	{
 		return ( ! isset($this->data[$item])) ? '' : $this->data[$item];
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Process Trackback
 	 *
 	 * Opens a socket connection and passes the data to
-	 * the server.  Returns true on success, false on failure
+	 * the server.  Returns TRUE on success, FALSE on failure
 	 *
 	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	bool
-	 */	
+	 */
 	function process($url, $data)
 	{
 		$target = parse_url($url);
-	
+
 		// Open the socket
 		if ( ! $fp = @fsockopen($target['host'], 80))
 		{
@@ -241,7 +241,7 @@ class CI_Trackback {
 
 		// Build the path
 		$ppath = ( ! isset($target['path'])) ? $url : $target['path'];
-		
+
 		$path = (isset($target['query']) && $target['query'] != "") ? $ppath.'?'.$target['query'] : $ppath;
 
 		// Add the Trackback ID to the data string
@@ -260,31 +260,32 @@ class CI_Trackback {
 
 		// Was it successful?
 		$this->response = "";
-		
+
 		while( ! feof($fp))
 		{
 			$this->response .= fgets($fp, 128);
 		}
 		@fclose($fp);
-		
+
+
 		if (stristr($this->response, '<error>0</error>') === FALSE)
 		{
 			$message = 'An unknown error was encountered';
-			
+
 			if (preg_match("/<message>(.*?)<\/message>/is", $this->response, $match))
 			{
 				$message = trim($match['1']);
 			}
-			
+
 			$this->set_error($message);
 			return FALSE;
 		}
 
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Extract Trackback URLs
 	 *
@@ -295,34 +296,34 @@ class CI_Trackback {
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function extract_urls($urls)
-	{		
+	{
 		// Remove the pesky white space and replace with a comma.
 		$urls = preg_replace("/\s*(\S+)\s*/", "\\1,", $urls);
-		
+
 		// If they use commas get rid of the doubles.
 		$urls = str_replace(",,", ",", $urls);
-		
+
 		// Remove any comma that might be at the end
 		if (substr($urls, -1) == ",")
 		{
 			$urls = substr($urls, 0, -1);
 		}
-				
+
 		// Break into an array via commas
 		$urls = preg_split('/[,]/', $urls);
-		
+
 		// Removes duplicates
 		$urls = array_unique($urls);
-		
+
 		array_walk($urls, array($this, 'validate_url'));
-		
+
 		return $urls;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Validate URL
 	 *
@@ -331,7 +332,7 @@ class CI_Trackback {
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function validate_url($url)
 	{
 		$url = trim($url);
@@ -341,58 +342,58 @@ class CI_Trackback {
 			$url = "http://".$url;
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Find the Trackback URL's ID
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function get_id($url)
-	{	
+	{
 		$tb_id = "";
-		
-		if (strstr($url, '?'))
+
+		if (strpos($url, '?') !== FALSE)
 		{
 			$tb_array = explode('/', $url);
 			$tb_end   = $tb_array[count($tb_array)-1];
-			
+
 			if ( ! is_numeric($tb_end))
 			{
 				$tb_end  = $tb_array[count($tb_array)-2];
 			}
-			
+
 			$tb_array = explode('=', $tb_end);
 			$tb_id	= $tb_array[count($tb_array)-1];
 		}
 		else
 		{
 			$url = rtrim($url, '/');
-				
+
 			$tb_array = explode('/', $url);
 			$tb_id	= $tb_array[count($tb_array)-1];
-			
+
 			if ( ! is_numeric($tb_id))
 			{
 				$tb_id  = $tb_array[count($tb_array)-2];
 			}
-		}	
-				
+		}
+
 		if ( ! preg_match ("/^([0-9]+)$/", $tb_id))
 		{
-			return false;
+			return FALSE;
 		}
 		else
 		{
 			return $tb_id;
-		}		
+		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Convert Reserved XML characters to Entities
 	 *
@@ -403,22 +404,22 @@ class CI_Trackback {
 	function convert_xml($str)
 	{
 		$temp = '__TEMP_AMPERSANDS__';
-		
+
 		$str = preg_replace("/&#(\d+);/", "$temp\\1;", $str);
 		$str = preg_replace("/&(\w+);/",  "$temp\\1;", $str);
-		
+
 		$str = str_replace(array("&","<",">","\"", "'", "-"),
-						   array("&amp;", "&lt;", "&gt;", "&quot;", "&#39;", "&#45;"),
-						   $str);
-			
+							array("&amp;", "&lt;", "&gt;", "&quot;", "&#39;", "&#45;"),
+							$str);
+
 		$str = preg_replace("/$temp(\d+);/","&#\\1;",$str);
 		$str = preg_replace("/$temp(\w+);/","&\\1;", $str);
-			
+
 		return $str;
-	}	
-	
+	}
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Character limiter
 	 *
@@ -438,25 +439,25 @@ class CI_Trackback {
 		}
 
 		$str = preg_replace("/\s+/", ' ', str_replace(array("\r\n", "\r", "\n"), ' ', $str));
-	
+
 		if (strlen($str) <= $n)
 		{
 			return $str;
 		}
-										
+
 		$out = "";
 		foreach (explode(' ', trim($str)) as $val)
 		{
-			$out .= $val.' ';			
+			$out .= $val.' ';
 			if (strlen($out) >= $n)
 			{
 				return trim($out).$end_char;
-			}		
+			}
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * High ASCII to Entities
 	 *
@@ -469,58 +470,58 @@ class CI_Trackback {
 	 */
 	function convert_ascii($str)
 	{
-	   $count	= 1;
-	   $out	= '';
-	   $temp	= array();
-		
-	   for ($i = 0, $s = strlen($str); $i < $s; $i++)
-	   {
-		   $ordinal = ord($str[$i]);
-		
-		   if ($ordinal < 128)
-		   {
-			   $out .= $str[$i];			
-		   }
-		   else
-		   {
-			   if (count($temp) == 0)
-			   {
-				   $count = ($ordinal < 224) ? 2 : 3;
-			   }
-			
-			   $temp[] = $ordinal;
-			
-			   if (count($temp) == $count)
-			   {
-				   $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64);
-	
-				   $out .= '&#'.$number.';';
-				   $count = 1;
-				   $temp = array();
-			   }
-		   }
-	   }
-	
-	   return $out;
+		$count	= 1;
+		$out	= '';
+		$temp	= array();
+
+		for ($i = 0, $s = strlen($str); $i < $s; $i++)
+		{
+			$ordinal = ord($str[$i]);
+
+			if ($ordinal < 128)
+			{
+				$out .= $str[$i];
+			}
+			else
+			{
+				if (count($temp) == 0)
+				{
+					$count = ($ordinal < 224) ? 2 : 3;
+				}
+
+				$temp[] = $ordinal;
+
+				if (count($temp) == $count)
+				{
+					$number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64);
+
+					$out .= '&#'.$number.';';
+					$count = 1;
+					$temp = array();
+				}
+			}
+		}
+
+		return $out;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set error message
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_error($msg)
 	{
 		log_message('error', $msg);
 		$this->error_msg[] = $msg;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Show error messages
 	 *
@@ -528,15 +529,15 @@ class CI_Trackback {
 	 * @param	string
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function display_errors($open = '<p>', $close = '</p>')
-	{	
+	{
 		$str = '';
 		foreach ($this->error_msg as $val)
 		{
 			$str .= $open.$val.$close;
 		}
-	
+
 		return $str;
 	}
 
diff --git a/system/libraries/Typography.php b/system/libraries/Typography.php
index 0f0a8b7a2..734cec104 100644..100755
--- a/system/libraries/Typography.php
+++ b/system/libraries/Typography.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -28,39 +28,31 @@ class CI_Typography {
 
 	// Block level elements that should not be wrapped inside <p> tags
 	var $block_elements = 'address|blockquote|div|dl|fieldset|form|h\d|hr|noscript|object|ol|p|pre|script|table|ul';
-	
+
 	// Elements that should not have <p> and <br /> tags within them.
 	var $skip_elements	= 'p|pre|ol|ul|dl|object|table|h\d';
-	
+
 	// Tags we want the parser to completely ignore when splitting the string.
 	var $inline_elements = 'a|abbr|acronym|b|bdo|big|br|button|cite|code|del|dfn|em|i|img|ins|input|label|map|kbd|q|samp|select|small|span|strong|sub|sup|textarea|tt|var';
-	
+
 	// array of block level elements that require inner content to be within another block level element
 	var $inner_block_required = array('blockquote');
-	
+
 	// the last block element parsed
 	var $last_block_element = '';
-	
+
 	// whether or not to protect quotes within { curly braces }
 	var $protect_braced_quotes = FALSE;
-	
-	/**
-	 * Nothing to do here...
-	 *
-	 */
-	function CI_Typography()
-	{
-	}
 
 	/**
 	 * Auto Typography
 	 *
 	 * This function converts text, making it typographically correct:
-	 * 	- Converts double spaces into paragraphs.
-	 * 	- Converts single line breaks into <br /> tags
-	 * 	- Converts single and double quotes into correctly facing curly quote entities.
-	 * 	- Converts three dots into ellipsis.
-	 * 	- Converts double dashes into em-dashes.
+	 *	- Converts double spaces into paragraphs.
+	 *	- Converts single line breaks into <br /> tags
+	 *	- Converts single and double quotes into correctly facing curly quote entities.
+	 *	- Converts three dots into ellipsis.
+	 *	- Converts double dashes into em-dashes.
 	 *  - Converts two spaces into entities
 	 *
 	 * @access	public
@@ -78,15 +70,15 @@ class CI_Typography {
 		// Standardize Newlines to make matching easier
 		if (strpos($str, "\r") !== FALSE)
 		{
-			$str = str_replace(array("\r\n", "\r"), "\n", $str);			
+			$str = str_replace(array("\r\n", "\r"), "\n", $str);
 		}
-			
+
 		// Reduce line breaks.  If there are more than two consecutive linebreaks
 		// we'll compress them down to a maximum of two since there's no benefit to more.
 		if ($reduce_linebreaks === TRUE)
 		{
 			$str = preg_replace("/\n\n+/", "\n\n", $str);
-		}   
+		}
 
 		// HTML comment tags don't conform to patterns of normal tags, so pull them out separately, only if needed
 		$html_comments = array();
@@ -101,50 +93,50 @@ class CI_Typography {
 				}
 			}
 		}
-		
+
 		// match and yank <pre> tags if they exist.  It's cheaper to do this separately since most content will
 		// not contain <pre> tags, and it keeps the PCRE patterns below simpler and faster
 		if (strpos($str, '<pre') !== FALSE)
 		{
 			$str = preg_replace_callback("#<pre.*?>.*?</pre>#si", array($this, '_protect_characters'), $str);
 		}
-		
+
 		// Convert quotes within tags to temporary markers.
 		$str = preg_replace_callback("#<.+?>#si", array($this, '_protect_characters'), $str);
 
 		// Do the same with braces if necessary
 		if ($this->protect_braced_quotes === TRUE)
 		{
-			$str = preg_replace_callback("#\{.+?\}#si", array($this, '_protect_characters'), $str);		
+			$str = preg_replace_callback("#\{.+?\}#si", array($this, '_protect_characters'), $str);
 		}
-				
-		// Convert "ignore" tags to temporary marker.  The parser splits out the string at every tag 
-		// it encounters.  Certain inline tags, like image tags, links, span tags, etc. will be 
+
+		// Convert "ignore" tags to temporary marker.  The parser splits out the string at every tag
+		// it encounters.  Certain inline tags, like image tags, links, span tags, etc. will be
 		// adversely affected if they are split out so we'll convert the opening bracket < temporarily to: {@TAG}
 		$str = preg_replace("#<(/*)(".$this->inline_elements.")([ >])#i", "{@TAG}\\1\\2\\3", $str);
 
 		// Split the string at every tag.  This expression creates an array with this prototype:
-		// 
-		// 	[array]
-		// 	{
-		// 		[0] = <opening tag>
-		// 		[1] = Content...
-		// 		[2] = <closing tag>
-		// 		Etc...
-		// 	}	
+		//
+		//	[array]
+		//	{
+		//		[0] = <opening tag>
+		//		[1] = Content...
+		//		[2] = <closing tag>
+		//		Etc...
+		//	}
 		$chunks = preg_split('/(<(?:[^<>]+(?:"[^"]*"|\'[^\']*\')?)+>)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
-		
-		// Build our finalized string.  We cycle through the array, skipping tags, and processing the contained text	
+
+		// Build our finalized string.  We cycle through the array, skipping tags, and processing the contained text
 		$str = '';
 		$process = TRUE;
 		$paragraph = FALSE;
 		$current_chunk = 0;
 		$total_chunks = count($chunks);
-		
+
 		foreach ($chunks as $chunk)
-		{ 
+		{
 			$current_chunk++;
-			
+
 			// Are we dealing with a tag? If so, we'll skip the processing for this cycle.
 			// Well also set the "process" flag which allows us to skip <pre> tags and a few other things.
 			if (preg_match("#<(/*)(".$this->block_elements.").*?>#", $chunk, $match))
@@ -153,7 +145,7 @@ class CI_Typography {
 				{
 					$process =  ($match[1] == '/') ? TRUE : FALSE;
 				}
-				
+
 				if ($match[1] == '')
 				{
 					$this->last_block_element = $match[2];
@@ -162,32 +154,32 @@ class CI_Typography {
 				$str .= $chunk;
 				continue;
 			}
-			
+
 			if ($process == FALSE)
 			{
 				$str .= $chunk;
 				continue;
 			}
-			
+
 			//  Force a newline to make sure end tags get processed by _format_newlines()
 			if ($current_chunk == $total_chunks)
 			{
-				$chunk .= "\n";  
+				$chunk .= "\n";
 			}
-			
+
 			//  Convert Newlines into <p> and <br /> tags
 			$str .= $this->_format_newlines($chunk);
 		}
-		
+
 		// No opening block level tag?  Add it if needed.
 		if ( ! preg_match("/^\s*<(?:".$this->block_elements.")/i", $str))
 		{
 			$str = preg_replace("/^(.*?)<(".$this->block_elements.")/i", '<p>$1</p><$2', $str);
 		}
-		
+
 		// Convert quotes, elipsis, em-dashes, non-breaking spaces, and ampersands
 		$str = $this->format_characters($str);
-		
+
 		// restore HTML comments
 		for ($i = 0, $total = count($html_comments); $i < $total; $i++)
 		{
@@ -196,18 +188,18 @@ class CI_Typography {
 			// if '<p>{@HC1}' then replace <p>{@HC1}</p> with the comment, else replace only {@HC1} with the comment
 			$str = preg_replace('#(?(?=<p>\{@HC'.$i.'\})<p>\{@HC'.$i.'\}(\s*</p>)|\{@HC'.$i.'\})#s', $html_comments[$i], $str);
 		}
-				
+
 		// Final clean up
 		$table = array(
-		
+
 						// If the user submitted their own paragraph tags within the text
 						// we will retain them instead of using our tags.
-						'/(<p[^>*?]>)<p>/'		=> '$1', // <?php BBEdit syntax coloring bug fix
-						
+						'/(<p[^>*?]>)<p>/'	=> '$1', // <?php BBEdit syntax coloring bug fix
+
 						// Reduce multiple instances of opening/closing paragraph tags to a single one
 						'#(</p>)+#'			=> '</p>',
 						'/(<p>\W*<p>)+/'	=> '<p>',
-						
+
 						// Clean up stray paragraph tags that appear before block level elements
 						'#<p></p><('.$this->block_elements.')#'	=> '<$1',
 
@@ -219,10 +211,19 @@ class CI_Typography {
 						'/\{@DQ\}/'			=> '"',
 						'/\{@SQ\}/'			=> "'",
 						'/\{@DD\}/'			=> '--',
-						'/\{@NBS\}/'		=> '  '
+						'/\{@NBS\}/'		=> '  ',
 
+						// An unintended consequence of the _format_newlines function is that
+						// some of the newlines get truncated, resulting in <p> tags
+						// starting immediately after <block> tags on the same line.
+						// This forces a newline after such occurrences, which looks much nicer.
+						"/><p>\n/"			=> ">\n<p>",
+
+						// Similarly, there might be cases where a closing </block> will follow
+						// a closing </p> tag, so we'll correct it by adding a newline in between
+						"#</p></#"			=> "</p>\n</"
 						);
-		
+
 		// Do we need to reduce empty lines?
 		if ($reduce_linebreaks === TRUE)
 		{
@@ -234,13 +235,13 @@ class CI_Typography {
 			// otherwise most browsers won't treat them as true paragraphs
 			$table['#<p></p>#'] = '<p>&nbsp;</p>';
 		}
-		
+
 		return preg_replace(array_keys($table), $table, $str);
 
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Format Characters
 	 *
@@ -255,10 +256,10 @@ class CI_Typography {
 	function format_characters($str)
 	{
 		static $table;
-		
+
 		if ( ! isset($table))
 		{
-			$table = array(					
+			$table = array(
 							// nested smart quotes, opening and closing
 							// note that rules for grammar (English) allow only for two levels deep
 							// and that single quotes are _supposed_ to always be on the outside
@@ -304,7 +305,7 @@ class CI_Typography {
 
 		return preg_replace(array_keys($table), $table, $str);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -315,47 +316,50 @@ class CI_Typography {
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
+	 */
 	function _format_newlines($str)
 	{
 		if ($str == '')
 		{
 			return $str;
 		}
-		
+
 		if (strpos($str, "\n") === FALSE  && ! in_array($this->last_block_element, $this->inner_block_required))
 		{
 			return $str;
 		}
-		
+
 		// Convert two consecutive newlines to paragraphs
 		$str = str_replace("\n\n", "</p>\n\n<p>", $str);
-		
+
 		// Convert single spaces to <br /> tags
 		$str = preg_replace("/([^\n])(\n)([^\n])/", "\\1<br />\\2\\3", $str);
-		
+
 		// Wrap the whole enchilada in enclosing paragraphs
 		if ($str != "\n")
 		{
-			$str =  '<p>'.$str.'</p>';
+			// We trim off the right-side new line so that the closing </p> tag
+			// will be positioned immediately following the string, matching
+			// the behavior of the opening <p> tag
+			$str =  '<p>'.rtrim($str).'</p>';
 		}
 
 		// Remove empty paragraphs if they are on the first line, as this
 		// is a potential unintended consequence of the previous code
 		$str = preg_replace("/<p><\/p>(.*)/", "\\1", $str, 1);
-		
+
 		return $str;
 	}
-	
+
 	// ------------------------------------------------------------------------
-	
+
 	/**
 	 * Protect Characters
 	 *
 	 * Protects special characters from being formatted later
 	 * We don't want quotes converted within tags so we'll temporarily convert them to {@DQ} and {@SQ}
- 	 * and we don't want double dashes converted to emdash entities, so they are marked with {@DD}
- 	 * likewise double spaces are converted to {@NBS} to prevent entity conversion
+	 * and we don't want double dashes converted to emdash entities, so they are marked with {@DD}
+	 * likewise double spaces are converted to {@NBS} to prevent entity conversion
 	 *
 	 * @access	public
 	 * @param	array
@@ -367,19 +371,19 @@ class CI_Typography {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Convert newlines to HTML line breaks except within PRE tags
 	 *
 	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */		
+	 */
 	function nl2br_except_pre($str)
 	{
 		$ex = explode("pre>",$str);
 		$ct = count($ex);
-	
+
 		$newstr = "";
 		for ($i = 0; $i < $ct; $i++)
 		{
@@ -391,14 +395,14 @@ class CI_Typography {
 			{
 				$newstr .= $ex[$i];
 			}
-		
+
 			if ($ct - 1 != $i)
 				$newstr .= "pre>";
 		}
-	
+
 		return $newstr;
 	}
-	
+
 }
 // END Typography Class
 
diff --git a/system/libraries/Unit_test.php b/system/libraries/Unit_test.php
index 29aeaae90..5bd7e801a 100644..100755
--- a/system/libraries/Unit_test.php
+++ b/system/libraries/Unit_test.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.3.1
@@ -28,19 +28,50 @@
  */
 class CI_Unit_test {
 
-	var $active			= TRUE;
-	var $results 		= array();
-	var $strict			= FALSE;
-	var $_template 		= NULL;
-	var $_template_rows	= NULL;
+	var $active					= TRUE;
+	var $results				= array();
+	var $strict					= FALSE;
+	var $_template				= NULL;
+	var $_template_rows			= NULL;
+	var $_test_items_visible	= array();
 
-	function CI_Unit_test()
+	public function __construct()
 	{
+		// These are the default items visible when a test is run.
+		$this->_test_items_visible = array (
+							'test_name',
+							'test_datatype',
+							'res_datatype',
+							'result',
+							'file',
+							'line',
+							'notes'
+						);
+
 		log_message('debug', "Unit Testing Class Initialized");
-	}	
+	}
 
 	// --------------------------------------------------------------------
-	
+
+	/**
+	 * Run the tests
+	 *
+	 * Runs the supplied tests
+	 *
+	 * @access	public
+	 * @param	array
+	 * @return	void
+	 */
+	function set_test_items($items = array())
+	{
+		if ( ! empty($items) AND is_array($items))
+		{
+			$this->_test_items_visible = $items;
+		}
+	}
+
+	// --------------------------------------------------------------------
+
 	/**
 	 * Run the tests
 	 *
@@ -51,48 +82,49 @@ class CI_Unit_test {
 	 * @param	mixed
 	 * @param	string
 	 * @return	string
-	 */	
-	function run($test, $expected = TRUE, $test_name = 'undefined')
+	 */
+	function run($test, $expected = TRUE, $test_name = 'undefined', $notes = '')
 	{
 		if ($this->active == FALSE)
 		{
 			return FALSE;
 		}
-	
-		if (in_array($expected, array('is_string', 'is_bool', 'is_true', 'is_false', 'is_int', 'is_numeric', 'is_float', 'is_double', 'is_array', 'is_null'), TRUE))
+
+		if (in_array($expected, array('is_object', 'is_string', 'is_bool', 'is_true', 'is_false', 'is_int', 'is_numeric', 'is_float', 'is_double', 'is_array', 'is_null'), TRUE))
 		{
 			$expected = str_replace('is_float', 'is_double', $expected);
-			$result = ($expected($test)) ? TRUE : FALSE;	
+			$result = ($expected($test)) ? TRUE : FALSE;
 			$extype = str_replace(array('true', 'false'), 'bool', str_replace('is_', '', $expected));
 		}
 		else
 		{
 			if ($this->strict == TRUE)
-				$result = ($test === $expected) ? TRUE : FALSE;	
+				$result = ($test === $expected) ? TRUE : FALSE;
 			else
-				$result = ($test == $expected) ? TRUE : FALSE;	
-			
+				$result = ($test == $expected) ? TRUE : FALSE;
+
 			$extype = gettype($expected);
 		}
-				
+
 		$back = $this->_backtrace();
-	
+
 		$report[] = array (
 							'test_name'			=> $test_name,
 							'test_datatype'		=> gettype($test),
 							'res_datatype'		=> $extype,
 							'result'			=> ($result === TRUE) ? 'passed' : 'failed',
 							'file'				=> $back['file'],
-							'line'				=> $back['line']
+							'line'				=> $back['line'],
+							'notes'				=> $notes
 						);
 
-		$this->results[] = $report;		
-				
+		$this->results[] = $report;
+
 		return($this->report($this->result($report)));
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Generate a report
 	 *
@@ -120,7 +152,6 @@ class CI_Unit_test {
 
 			foreach ($res as $key => $val)
 			{
-
 				if ($key == $CI->lang->line('ut_result'))
 				{
 					if ($val == $CI->lang->line('ut_passed'))
@@ -144,9 +175,9 @@ class CI_Unit_test {
 
 		return $r;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Use strict comparison
 	 *
@@ -160,9 +191,9 @@ class CI_Unit_test {
 	{
 		$this->strict = ($state == FALSE) ? FALSE : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Make Unit testing active
 	 *
@@ -176,9 +207,9 @@ class CI_Unit_test {
 	{
 		$this->active = ($state == FALSE) ? FALSE : TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Result Array
 	 *
@@ -188,21 +219,26 @@ class CI_Unit_test {
 	 * @return	array
 	 */
 	function result($results = array())
-	{	
+	{
 		$CI =& get_instance();
 		$CI->load->language('unit_test');
-		
+
 		if (count($results) == 0)
 		{
 			$results = $this->results;
 		}
-		
+
 		$retval = array();
 		foreach ($results as $result)
 		{
 			$temp = array();
 			foreach ($result as $key => $val)
 			{
+				if ( ! in_array($key, $this->_test_items_visible))
+				{
+					continue;
+				}
+
 				if (is_array($val))
 				{
 					foreach ($val as $k => $v)
@@ -210,8 +246,8 @@ class CI_Unit_test {
 						if (FALSE !== ($line = $CI->lang->line(strtolower('ut_'.$v))))
 						{
 							$v = $line;
-						}				
-						$temp[$CI->lang->line('ut_'.$k)] = $v;					
+						}
+						$temp[$CI->lang->line('ut_'.$k)] = $v;
 					}
 				}
 				else
@@ -219,19 +255,19 @@ class CI_Unit_test {
 					if (FALSE !== ($line = $CI->lang->line(strtolower('ut_'.$val))))
 					{
 						$val = $line;
-					}				
+					}
 					$temp[$CI->lang->line('ut_'.$key)] = $val;
 				}
 			}
-			
+
 			$retval[] = $temp;
 		}
-	
+
 		return $retval;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the template
 	 *
@@ -240,14 +276,14 @@ class CI_Unit_test {
 	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function set_template($template)
 	{
 		$this->_template = $template;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Generate a backtrace
 	 *
@@ -261,17 +297,17 @@ class CI_Unit_test {
 		if (function_exists('debug_backtrace'))
 		{
 			$back = debug_backtrace();
-			
+
 			$file = ( ! isset($back['1']['file'])) ? '' : $back['1']['file'];
 			$line = ( ! isset($back['1']['line'])) ? '' : $back['1']['line'];
-						
+
 			return array('file' => $file, 'line' => $line);
 		}
 		return array('file' => 'Unknown', 'line' => 'Unknown');
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get Default Template
 	 *
@@ -279,17 +315,17 @@ class CI_Unit_test {
 	 * @return	string
 	 */
 	function _default_template()
-	{	
+	{
 		$this->_template = "\n".'<table style="width:100%; font-size:small; margin:10px 0; border-collapse:collapse; border:1px solid #CCC;">';
 		$this->_template .= '{rows}';
 		$this->_template .= "\n".'</table>';
-		
+
 		$this->_template_rows = "\n\t".'<tr>';
 		$this->_template_rows .= "\n\t\t".'<th style="text-align: left; border-bottom:1px solid #CCC;">{item}</th>';
 		$this->_template_rows .= "\n\t\t".'<td style="border-bottom:1px solid #CCC;">{result}</td>';
-		$this->_template_rows .= "\n\t".'</tr>';	
+		$this->_template_rows .= "\n\t".'</tr>';
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -300,29 +336,29 @@ class CI_Unit_test {
 	 * @access	private
 	 * @return	void
 	 */
- 	function _parse_template()
- 	{
- 		if ( ! is_null($this->_template_rows))
- 		{
- 			return;
- 		}
- 		
- 		if (is_null($this->_template))
- 		{
- 			$this->_default_template();
- 			return;
- 		}
- 		
+	function _parse_template()
+	{
+		if ( ! is_null($this->_template_rows))
+		{
+			return;
+		}
+
+		if (is_null($this->_template))
+		{
+			$this->_default_template();
+			return;
+		}
+
 		if ( ! preg_match("/\{rows\}(.*?)\{\/rows\}/si", $this->_template, $match))
 		{
- 			$this->_default_template();
- 			return;
+			$this->_default_template();
+			return;
 		}
 
 		$this->_template_rows = $match['1'];
-		$this->_template = str_replace($match['0'], '{rows}', $this->_template); 	
- 	}
- 	
+		$this->_template = str_replace($match['0'], '{rows}', $this->_template);
+	}
+
 }
 // END Unit_test Class
 
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index a97b7bdfb..8f84ffd7e 100644..100755
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -25,59 +25,59 @@
  * @link		http://codeigniter.com/user_guide/libraries/file_uploading.html
  */
 class CI_Upload {
-	
-	var $max_size				= 0;
-	var $max_width				= 0;
-	var $max_height				= 0;
-	var $max_filename			= 0;
-	var $allowed_types			= "";
-	var $file_temp				= "";
-	var $file_name				= "";
-	var $orig_name				= "";
-	var $file_type				= "";
-	var $file_size				= "";
-	var $file_ext				= "";
-	var $upload_path			= "";
-	var $overwrite				= FALSE;
-	var $encrypt_name			= FALSE;
-	var $is_image				= FALSE;
-	var $image_width			= '';
-	var $image_height			= '';
-	var $image_type				= '';
-	var $image_size_str			= '';
-	var $error_msg				= array();
-	var $mimes					= array();
-	var $remove_spaces			= TRUE;
-	var $xss_clean				= FALSE;
-	var $temp_prefix			= "temp_file_";
-	var $client_name			= '';
-	
-	var $_file_name_override	= '';	
+
+	public $max_size				= 0;
+	public $max_width				= 0;
+	public $max_height				= 0;
+	public $max_filename			= 0;
+	public $allowed_types			= "";
+	public $file_temp				= "";
+	public $file_name				= "";
+	public $orig_name				= "";
+	public $file_type				= "";
+	public $file_size				= "";
+	public $file_ext				= "";
+	public $upload_path				= "";
+	public $overwrite				= FALSE;
+	public $encrypt_name			= FALSE;
+	public $is_image				= FALSE;
+	public $image_width				= '';
+	public $image_height			= '';
+	public $image_type				= '';
+	public $image_size_str			= '';
+	public $error_msg				= array();
+	public $mimes					= array();
+	public $remove_spaces			= TRUE;
+	public $xss_clean				= FALSE;
+	public $temp_prefix				= "temp_file_";
+	public $client_name				= '';
+
+	protected $_file_name_override	= '';
+
 	/**
 	 * Constructor
 	 *
 	 * @access	public
 	 */
-	function CI_Upload($props = array())
+	public function __construct($props = array())
 	{
 		if (count($props) > 0)
 		{
 			$this->initialize($props);
 		}
-		
+
 		log_message('debug', "Upload Class Initialized");
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Initialize preferences
 	 *
-	 * @access	public
 	 * @param	array
 	 * @return	void
-	 */	
-	function initialize($config = array())
+	 */
+	public function initialize($config = array())
 	{
 		$defaults = array(
 							'max_size'			=> 0,
@@ -105,9 +105,9 @@ class CI_Upload {
 							'xss_clean'			=> FALSE,
 							'temp_prefix'		=> "temp_file_",
 							'client_name'		=> ''
-						);	
-	
-	
+						);
+
+
 		foreach ($defaults as $key => $val)
 		{
 			if (isset($config[$key]))
@@ -120,28 +120,27 @@ class CI_Upload {
 				else
 				{
 					$this->$key = $config[$key];
-				}			
+				}
 			}
 			else
 			{
 				$this->$key = $val;
 			}
 		}
-		
+
 		// if a file_name was provided in the config, use it instead of the user input
 		// supplied file name for all uploads until initialized again
 		$this->_file_name_override = $this->file_name;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Perform the file upload
 	 *
-	 * @access	public
 	 * @return	bool
-	 */	
-	function do_upload($field = 'userfile')
+	 */
+	public function do_upload($field = 'userfile')
 	{
 		// Is $_FILES[$field] set? If not, no reason to continue.
 		if ( ! isset($_FILES[$field]))
@@ -149,7 +148,7 @@ class CI_Upload {
 			$this->set_error('upload_no_file_selected');
 			return FALSE;
 		}
-		
+
 		// Is the upload path valid?
 		if ( ! $this->validate_upload_path())
 		{
@@ -171,10 +170,10 @@ class CI_Upload {
 					$this->set_error('upload_file_exceeds_form_limit');
 					break;
 				case 3: // UPLOAD_ERR_PARTIAL
-				   $this->set_error('upload_file_partial');
+					$this->set_error('upload_file_partial');
 					break;
 				case 4: // UPLOAD_ERR_NO_FILE
-				   $this->set_error('upload_no_file_selected');
+					$this->set_error('upload_no_file_selected');
 					break;
 				case 6: // UPLOAD_ERR_NO_TMP_DIR
 					$this->set_error('upload_no_temp_directory');
@@ -192,9 +191,10 @@ class CI_Upload {
 			return FALSE;
 		}
 
+
 		// Set the uploaded data as class variables
-		$this->file_temp = $_FILES[$field]['tmp_name'];		
-		$this->file_size = $_FILES[$field]['size'];	
+		$this->file_temp = $_FILES[$field]['tmp_name'];
+		$this->file_size = $_FILES[$field]['size'];
 		$this->file_type = preg_replace("/^(.+?);.*$/", "\\1", $_FILES[$field]['type']);
 		$this->file_type = strtolower(trim(stripslashes($this->file_type), '"'));
 		$this->file_name = $this->_prep_filename($_FILES[$field]['name']);
@@ -207,20 +207,31 @@ class CI_Upload {
 			$this->set_error('upload_invalid_filetype');
 			return FALSE;
 		}
-				
+
 		// if we're overriding, let's now make sure the new name and type is allowed
 		if ($this->_file_name_override != '')
 		{
 			$this->file_name = $this->_prep_filename($this->_file_name_override);
-			$this->file_ext  = $this->get_extension($this->file_name);
+
+			// If no extension was provided in the file_name config item, use the uploaded one
+			if(strpos($this->_file_name_override, '.') === FALSE)
+			{
+				$this->file_name .= $this->file_ext;
+			}
+
+			// An extension was provided, lets have it!
+			else
+			{
+				$this->file_ext	 = $this->get_extension($this->_file_name_override);
+			}
 
 			if ( ! $this->is_allowed_filetype(TRUE))
 			{
 				$this->set_error('upload_invalid_filetype');
-				return FALSE;				
+				return FALSE;
 			}
 		}
-		
+
 		// Convert the file size to kilobytes
 		if ($this->file_size > 0)
 		{
@@ -244,7 +255,7 @@ class CI_Upload {
 
 		// Sanitize the file name for security
 		$this->file_name = $this->clean_file_name($this->file_name);
-		
+
 		// Truncate the file name if it's too long
 		if ($this->max_filename > 0)
 		{
@@ -268,7 +279,7 @@ class CI_Upload {
 		if ($this->overwrite == FALSE)
 		{
 			$this->file_name = $this->set_filename($this->upload_path, $this->file_name);
-			
+
 			if ($this->file_name === FALSE)
 			{
 				return FALSE;
@@ -276,6 +287,21 @@ class CI_Upload {
 		}
 
 		/*
+		 * Run the file through the XSS hacking filter
+		 * This helps prevent malicious code from being
+		 * embedded within a file.  Scripts can easily
+		 * be disguised as images or other file types.
+		 */
+		if ($this->xss_clean)
+		{
+			if ($this->do_xss_clean() === FALSE)
+			{
+				$this->set_error('upload_unable_to_write_file');
+				return FALSE;
+			}
+		}
+
+		/*
 		 * Move the file to the final destination
 		 * To deal with different server configurations
 		 * we'll attempt to use copy() first.  If that fails
@@ -286,21 +312,10 @@ class CI_Upload {
 		{
 			if ( ! @move_uploaded_file($this->file_temp, $this->upload_path.$this->file_name))
 			{
-				 $this->set_error('upload_destination_error');
-				 return FALSE;
+				$this->set_error('upload_destination_error');
+				return FALSE;
 			}
 		}
-		
-		/*
-		 * Run the file through the XSS hacking filter
-		 * This helps prevent malicious code from being
-		 * embedded within a file.  Scripts can easily
-		 * be disguised as images or other file types.
-		 */
-		if ($this->xss_clean == TRUE)
-		{
-			$this->do_xss_clean();
-		}
 
 		/*
 		 * Set the finalized image dimensions
@@ -312,19 +327,18 @@ class CI_Upload {
 
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Finalized Data Array
-	 *	
+	 *
 	 * Returns an associative array containing all of the information
 	 * related to the upload, allowing the developer easy access in one array.
 	 *
-	 * @access	public
 	 * @return	array
-	 */	
-	function data()
+	 */
+	public function data()
 	{
 		return array (
 						'file_name'			=> $this->file_name,
@@ -343,24 +357,23 @@ class CI_Upload {
 						'image_size_str'	=> $this->image_size_str,
 					);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Upload Path
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
-	function set_upload_path($path)
+	 */
+	public function set_upload_path($path)
 	{
 		// Make sure it has a trailing slash
 		$this->upload_path = rtrim($path, '/').'/';
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the file name
 	 *
@@ -368,29 +381,28 @@ class CI_Upload {
 	 * existence of a file with the same name. If found, it will append a
 	 * number to the end of the filename to avoid overwriting a pre-existing file.
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	string
-	 */	
-	function set_filename($path, $filename)
+	 */
+	public function set_filename($path, $filename)
 	{
 		if ($this->encrypt_name == TRUE)
-		{		
+		{
 			mt_srand();
-			$filename = md5(uniqid(mt_rand())).$this->file_ext;	
+			$filename = md5(uniqid(mt_rand())).$this->file_ext;
 		}
-	
+
 		if ( ! file_exists($path.$filename))
 		{
 			return $filename;
 		}
-	
+
 		$filename = str_replace($this->file_ext, '', $filename);
-		
+
 		$new_filename = '';
 		for ($i = 1; $i < 100; $i++)
-		{			
+		{
 			if ( ! file_exists($path.$filename.$i.$this->file_ext))
 			{
 				$new_filename = $filename.$i.$this->file_ext;
@@ -408,89 +420,88 @@ class CI_Upload {
 			return $new_filename;
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Maximum File Size
 	 *
-	 * @access	public
 	 * @param	integer
 	 * @return	void
-	 */	
-	function set_max_filesize($n)
+	 */
+	public function set_max_filesize($n)
 	{
 		$this->max_size = ((int) $n < 0) ? 0: (int) $n;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Maximum File Name Length
 	 *
-	 * @access	public
 	 * @param	integer
 	 * @return	void
-	 */	
-	function set_max_filename($n)
+	 */
+	public function set_max_filename($n)
 	{
 		$this->max_filename = ((int) $n < 0) ? 0: (int) $n;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Maximum Image Width
 	 *
-	 * @access	public
 	 * @param	integer
 	 * @return	void
-	 */	
-	function set_max_width($n)
+	 */
+	public function set_max_width($n)
 	{
 		$this->max_width = ((int) $n < 0) ? 0: (int) $n;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Maximum Image Height
 	 *
-	 * @access	public
 	 * @param	integer
 	 * @return	void
-	 */	
-	function set_max_height($n)
+	 */
+	public function set_max_height($n)
 	{
 		$this->max_height = ((int) $n < 0) ? 0: (int) $n;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Allowed File Types
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
-	function set_allowed_types($types)
+	 */
+	public function set_allowed_types($types)
 	{
+		if ( ! is_array($types) && $types == '*')
+		{
+			$this->allowed_types = '*';
+			return;
+		}
 		$this->allowed_types = explode('|', $types);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set Image Properties
 	 *
 	 * Uses GD to determine the width/height/type of image
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
-	function set_image_properties($path = '')
+	 */
+	public function set_image_properties($path = '')
 	{
 		if ( ! $this->is_image())
 		{
@@ -500,7 +511,7 @@ class CI_Upload {
 		if (function_exists('getimagesize'))
 		{
 			if (FALSE !== ($D = @getimagesize($path)))
-			{	
+			{
 				$types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');
 
 				$this->image_width		= $D['0'];
@@ -510,45 +521,43 @@ class CI_Upload {
 			}
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set XSS Clean
 	 *
 	 * Enables the XSS flag so that the file that was uploaded
 	 * will be run through the XSS filter.
 	 *
-	 * @access	public
 	 * @param	bool
 	 * @return	void
 	 */
-	function set_xss_clean($flag = FALSE)
+	public function set_xss_clean($flag = FALSE)
 	{
 		$this->xss_clean = ($flag == TRUE) ? TRUE : FALSE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Validate the image
 	 *
-	 * @access	public
 	 * @return	bool
-	 */	
-	function is_image()
+	 */
+	public function is_image()
 	{
 		// IE will sometimes return odd mime-types during upload, so here we just standardize all
 		// jpegs or pngs to the same file type.
 
 		$png_mimes  = array('image/x-png');
 		$jpeg_mimes = array('image/jpg', 'image/jpe', 'image/jpeg', 'image/pjpeg');
-		
+
 		if (in_array($this->file_type, $png_mimes))
 		{
 			$this->file_type = 'image/png';
 		}
-		
+
 		if (in_array($this->file_type, $jpeg_mimes))
 		{
 			$this->file_type = 'image/jpeg';
@@ -558,29 +567,33 @@ class CI_Upload {
 							'image/gif',
 							'image/jpeg',
 							'image/png',
-						   );
+						);
 
 		return (in_array($this->file_type, $img_mimes, TRUE)) ? TRUE : FALSE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Verify that the filetype is allowed
 	 *
-	 * @access	public
 	 * @return	bool
-	 */	
-	function is_allowed_filetype($ignore_mime = FALSE)
+	 */
+	public function is_allowed_filetype($ignore_mime = FALSE)
 	{
+		if ($this->allowed_types == '*')
+		{
+			return TRUE;
+		}
+
 		if (count($this->allowed_types) == 0 OR ! is_array($this->allowed_types))
 		{
 			$this->set_error('upload_no_file_types');
 			return FALSE;
 		}
-		
+
 		$ext = strtolower(ltrim($this->file_ext, '.'));
-		
+
 		if ( ! in_array($ext, $this->allowed_types))
 		{
 			return FALSE;
@@ -594,40 +607,39 @@ class CI_Upload {
 			if (getimagesize($this->file_temp) === FALSE)
 			{
 				return FALSE;
-			}			
+			}
 		}
 
 		if ($ignore_mime === TRUE)
 		{
 			return TRUE;
 		}
-		
+
 		$mime = $this->mimes_types($ext);
-				
+
 		if (is_array($mime))
 		{
 			if (in_array($this->file_type, $mime, TRUE))
 			{
 				return TRUE;
-			}			
+			}
 		}
 		elseif ($mime == $this->file_type)
 		{
 				return TRUE;
 		}
-		
+
 		return FALSE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Verify that the file is within the allowed size
 	 *
-	 * @access	public
 	 * @return	bool
-	 */	
-	function is_allowed_filesize()
+	 */
+	public function is_allowed_filesize()
 	{
 		if ($this->max_size != 0  AND  $this->file_size > $this->max_size)
 		{
@@ -638,16 +650,15 @@ class CI_Upload {
 			return TRUE;
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Verify that the image is within the allowed width/height
 	 *
-	 * @access	public
 	 * @return	bool
-	 */	
-	function is_allowed_dimensions()
+	 */
+	public function is_allowed_dimensions()
 	{
 		if ( ! $this->is_image())
 		{
@@ -673,26 +684,25 @@ class CI_Upload {
 
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Validate Upload Path
 	 *
 	 * Verifies that it is a valid upload path with proper permissions.
 	 *
 	 *
-	 * @access	public
 	 * @return	bool
-	 */	
-	function validate_upload_path()
+	 */
+	public function validate_upload_path()
 	{
 		if ($this->upload_path == '')
 		{
 			$this->set_error('upload_no_filepath');
 			return FALSE;
 		}
-		
+
 		if (function_exists('realpath') AND @realpath($this->upload_path) !== FALSE)
 		{
 			$this->upload_path = str_replace("\\", "/", realpath($this->upload_path));
@@ -713,32 +723,30 @@ class CI_Upload {
 		$this->upload_path = preg_replace("/(.+?)\/*$/", "\\1/",  $this->upload_path);
 		return TRUE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Extract the file extension
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
-	function get_extension($filename)
+	 */
+	public function get_extension($filename)
 	{
 		$x = explode('.', $filename);
 		return '.'.end($x);
-	}	
-	
+	}
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Clean the file name for security
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */		
-	function clean_file_name($filename)
+	 */
+	public function clean_file_name($filename)
 	{
 		$bad = array(
 						"<!--",
@@ -756,40 +764,39 @@ class CI_Upload {
 						"%20",
 						"%22",
 						"%3c",		// <
-						"%253c", 	// <
-						"%3e", 		// >
-						"%0e", 		// >
-						"%28", 		// (
-						"%29", 		// )
-						"%2528", 	// (
-						"%26", 		// &
-						"%24", 		// $
-						"%3f", 		// ?
-						"%3b", 		// ;
+						"%253c",	// <
+						"%3e",		// >
+						"%0e",		// >
+						"%28",		// (
+						"%29",		// )
+						"%2528",	// (
+						"%26",		// &
+						"%24",		// $
+						"%3f",		// ?
+						"%3b",		// ;
 						"%3d"		// =
 					);
-					
+
 		$filename = str_replace($bad, '', $filename);
 
 		return stripslashes($filename);
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Limit the File Name Length
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */		
-	function limit_filename_length($filename, $length)
+	 */
+	public function limit_filename_length($filename, $length)
 	{
 		if (strlen($filename) < $length)
 		{
 			return $filename;
 		}
-	
+
 		$ext = '';
 		if (strpos($filename, '.') !== FALSE)
 		{
@@ -797,12 +804,12 @@ class CI_Upload {
 			$ext		= '.'.array_pop($parts);
 			$filename	= implode('.', $parts);
 		}
-	
+
 		return substr($filename, 0, ($length - strlen($ext))).$ext;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Runs the file through the XSS clean function
 	 *
@@ -810,59 +817,93 @@ class CI_Upload {
 	 * I'm not sure that it won't negatively affect certain files in unexpected ways,
 	 * but so far I haven't found that it causes trouble.
 	 *
-	 * @access	public
 	 * @return	void
-	 */	
-	function do_xss_clean()
-	{		
-		$file = $this->upload_path.$this->file_name;
-		
+	 */
+	public function do_xss_clean()
+	{
+		$file = $this->file_temp;
+
 		if (filesize($file) == 0)
 		{
 			return FALSE;
 		}
 
+		if (function_exists('memory_get_usage') && memory_get_usage() && ini_get('memory_limit') != '')
+		{
+			$current = ini_get('memory_limit') * 1024 * 1024;
+
+			// There was a bug/behavioural change in PHP 5.2, where numbers over one million get output
+			// into scientific notation.  number_format() ensures this number is an integer
+			// http://bugs.php.net/bug.php?id=43053
+
+			$new_memory = number_format(ceil(filesize($file) + $current), 0, '.', '');
+
+			ini_set('memory_limit', $new_memory); // When an integer is used, the value is measured in bytes. - PHP.net
+		}
+
+		// If the file being uploaded is an image, then we should have no problem with XSS attacks (in theory), but
+		// IE can be fooled into mime-type detecting a malformed image as an html file, thus executing an XSS attack on anyone
+		// using IE who looks at the image.  It does this by inspecting the first 255 bytes of an image.  To get around this
+		// CI will itself look at the first 255 bytes of an image to determine its relative safety.  This can save a lot of
+		// processor power and time if it is actually a clean image, as it will be in nearly all instances _except_ an
+		// attempted XSS attack.
+
+		if (function_exists('getimagesize') && @getimagesize($file) !== FALSE)
+		{
+			if (($file = @fopen($file, 'rb')) === FALSE) // "b" to force binary
+			{
+				return FALSE; // Couldn't open the file, return FALSE
+			}
+
+			$opening_bytes = fread($file, 256);
+			fclose($file);
+
+			// These are known to throw IE into mime-type detection chaos
+			// <a, <body, <head, <html, <img, <plaintext, <pre, <script, <table, <title
+			// title is basically just in SVG, but we filter it anyhow
+
+			if ( ! preg_match('/<(a|body|head|html|img|plaintext|pre|script|table|title)[\s>]/i', $opening_bytes))
+			{
+				return TRUE; // its an image, no "triggers" detected in the first 256 bytes, we're good
+			}
+		}
+
 		if (($data = @file_get_contents($file)) === FALSE)
 		{
 			return FALSE;
 		}
-		
-		if ( ! $fp = @fopen($file, FOPEN_READ_WRITE))
+
+		$CI =& get_instance();
+
+		if ( ! isset($CI->security))
 		{
-			return FALSE;
+			$CI->load->library('security');
 		}
 
-		$CI =& get_instance();	
-		$data = $CI->input->xss_clean($data);
-		
-		flock($fp, LOCK_EX);
-		fwrite($fp, $data);
-		flock($fp, LOCK_UN);
-		fclose($fp);
+		return $CI->security->xss_clean($data, TRUE);
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set an error message
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	void
-	 */	
-	function set_error($msg)
+	 */
+	public function set_error($msg)
 	{
-		$CI =& get_instance();	
+		$CI =& get_instance();
 		$CI->lang->load('upload');
-		
+
 		if (is_array($msg))
 		{
 			foreach ($msg as $val)
 			{
-				$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);				
+				$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);
 				$this->error_msg[] = $msg;
 				log_message('error', $msg);
-			}		
+			}
 		}
 		else
 		{
@@ -871,44 +912,42 @@ class CI_Upload {
 			log_message('error', $msg);
 		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Display the error message
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
 	 * @return	string
-	 */	
-	function display_errors($open = '<p>', $close = '</p>')
+	 */
+	public function display_errors($open = '<p>', $close = '</p>')
 	{
 		$str = '';
 		foreach ($this->error_msg as $val)
 		{
 			$str .= $open.$val.$close;
 		}
-	
+
 		return $str;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * List of Mime Types
 	 *
 	 * This is a list of mime types.  We use it to validate
 	 * the "allowed types" set by the developer
 	 *
-	 * @access	public
 	 * @param	string
 	 * @return	string
-	 */	
-	function mimes_types($mime)
+	 */
+	public function mimes_types($mime)
 	{
 		global $mimes;
-	
+
 		if (count($this->mimes) == 0)
 		{
 			if (@require_once(APPPATH.'config/mimes'.EXT))
@@ -917,25 +956,24 @@ class CI_Upload {
 				unset($mimes);
 			}
 		}
-	
+
 		return ( ! isset($this->mimes[$mime])) ? FALSE : $this->mimes[$mime];
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Prep Filename
 	 *
 	 * Prevents possible script execution from Apache's handling of files multiple extensions
 	 * http://httpd.apache.org/docs/1.3/mod/mod_mime.html#multipleext
 	 *
-	 * @access	private
 	 * @param	string
 	 * @return	string
 	 */
-	function _prep_filename($filename)
+	protected function _prep_filename($filename)
 	{
-		if (strpos($filename, '.') === FALSE)
+		if (strpos($filename, '.') === FALSE OR $this->allowed_types == '*')
 		{
 			return $filename;
 		}
@@ -957,7 +995,7 @@ class CI_Upload {
 		}
 
 		$filename .= '.'.$ext;
-		
+
 		return $filename;
 	}
 
diff --git a/system/libraries/User_agent.php b/system/libraries/User_agent.php
index a7c7a7609..c62174836 100644..100755
--- a/system/libraries/User_agent.php
+++ b/system/libraries/User_agent.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -29,25 +29,25 @@
 class CI_User_agent {
 
 	var $agent		= NULL;
-	
+
 	var $is_browser	= FALSE;
 	var $is_robot	= FALSE;
 	var $is_mobile	= FALSE;
 
 	var $languages	= array();
 	var $charsets	= array();
-	
+
 	var $platforms	= array();
 	var $browsers	= array();
 	var $mobiles	= array();
 	var $robots		= array();
-	
+
 	var $platform	= '';
 	var $browser	= '';
 	var $version	= '';
 	var $mobile		= '';
 	var $robot		= '';
-	
+
 	/**
 	 * Constructor
 	 *
@@ -55,14 +55,14 @@ class CI_User_agent {
 	 *
 	 * @access	public
 	 * @return	void
-	 */		
-	function CI_User_agent()
+	 */
+	public function __construct()
 	{
 		if (isset($_SERVER['HTTP_USER_AGENT']))
 		{
 			$this->agent = trim($_SERVER['HTTP_USER_AGENT']);
 		}
-		
+
 		if ( ! is_null($this->agent))
 		{
 			if ($this->_load_agent_file())
@@ -70,27 +70,27 @@ class CI_User_agent {
 				$this->_compile_data();
 			}
 		}
-		
+
 		log_message('debug', "User Agent Class Initialized");
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Compile the User Agent Data
 	 *
 	 * @access	private
 	 * @return	bool
-	 */		
-	function _load_agent_file()
+	 */
+	private function _load_agent_file()
 	{
 		if ( ! @include(APPPATH.'config/user_agents'.EXT))
 		{
 			return FALSE;
 		}
-		
+
 		$return = FALSE;
-		
+
 		if (isset($platforms))
 		{
 			$this->platforms = $platforms;
@@ -111,7 +111,7 @@ class CI_User_agent {
 			unset($mobiles);
 			$return = TRUE;
 		}
-		
+
 		if (isset($robots))
 		{
 			$this->robots = $robots;
@@ -121,37 +121,37 @@ class CI_User_agent {
 
 		return $return;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Compile the User Agent Data
 	 *
 	 * @access	private
 	 * @return	bool
-	 */		
-	function _compile_data()
+	 */
+	private function _compile_data()
 	{
 		$this->_set_platform();
-	
+
 		foreach (array('_set_browser', '_set_robot', '_set_mobile') as $function)
 		{
 			if ($this->$function() === TRUE)
 			{
 				break;
 			}
-		}	
+		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the Platform
 	 *
 	 * @access	private
 	 * @return	mixed
-	 */		
-	function _set_platform()
+	 */
+	private function _set_platform()
 	{
 		if (is_array($this->platforms) AND count($this->platforms) > 0)
 		{
@@ -168,19 +168,19 @@ class CI_User_agent {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the Browser
 	 *
 	 * @access	private
 	 * @return	bool
-	 */		
-	function _set_browser()
+	 */
+	private function _set_browser()
 	{
 		if (is_array($this->browsers) AND count($this->browsers) > 0)
 		{
 			foreach ($this->browsers as $key => $val)
-			{		
+			{
 				if (preg_match("|".preg_quote($key).".*?([0-9\.]+)|i", $this->agent, $match))
 				{
 					$this->is_browser = TRUE;
@@ -193,19 +193,19 @@ class CI_User_agent {
 		}
 		return FALSE;
 	}
-			
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the Robot
 	 *
 	 * @access	private
 	 * @return	bool
-	 */		
-	function _set_robot()
+	 */
+	private function _set_robot()
 	{
 		if (is_array($this->robots) AND count($this->robots) > 0)
-		{		
+		{
 			foreach ($this->robots as $key => $val)
 			{
 				if (preg_match("|".preg_quote($key)."|i", $this->agent))
@@ -220,17 +220,17 @@ class CI_User_agent {
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the Mobile Device
 	 *
 	 * @access	private
 	 * @return	bool
-	 */		
-	function _set_mobile()
+	 */
+	private function _set_mobile()
 	{
 		if (is_array($this->mobiles) AND count($this->mobiles) > 0)
-		{		
+		{
 			foreach ($this->mobiles as $key => $val)
 			{
 				if (FALSE !== (strpos(strtolower($this->agent), $key)))
@@ -240,261 +240,296 @@ class CI_User_agent {
 					return TRUE;
 				}
 			}
-		}	
+		}
 		return FALSE;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the accepted languages
 	 *
 	 * @access	private
 	 * @return	void
-	 */			
-	function _set_languages()
+	 */
+	private function _set_languages()
 	{
 		if ((count($this->languages) == 0) AND isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) AND $_SERVER['HTTP_ACCEPT_LANGUAGE'] != '')
 		{
 			$languages = preg_replace('/(;q=[0-9\.]+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_LANGUAGE'])));
-			
+
 			$this->languages = explode(',', $languages);
 		}
-		
+
 		if (count($this->languages) == 0)
 		{
 			$this->languages = array('Undefined');
-		}	
+		}
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Set the accepted character sets
 	 *
 	 * @access	private
 	 * @return	void
-	 */			
-	function _set_charsets()
-	{	
+	 */
+	private function _set_charsets()
+	{
 		if ((count($this->charsets) == 0) AND isset($_SERVER['HTTP_ACCEPT_CHARSET']) AND $_SERVER['HTTP_ACCEPT_CHARSET'] != '')
 		{
 			$charsets = preg_replace('/(;q=.+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_CHARSET'])));
-			
+
 			$this->charsets = explode(',', $charsets);
 		}
-		
+
 		if (count($this->charsets) == 0)
 		{
 			$this->charsets = array('Undefined');
-		}	
+		}
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Is Browser
 	 *
 	 * @access	public
 	 * @return	bool
-	 */		
-	function is_browser()
+	 */
+	public function is_browser($key = NULL)
 	{
-		return $this->is_browser;
+		if ( ! $this->is_browser)
+		{
+			return FALSE;
+		}
+
+		// No need to be specific, it's a browser
+		if ($key === NULL)
+		{
+			return TRUE;
+		}
+
+		// Check for a specific browser
+		return array_key_exists($key, $this->browsers) AND $this->browser === $this->browsers[$key];
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Is Robot
 	 *
 	 * @access	public
 	 * @return	bool
-	 */		
-	function is_robot()
+	 */
+	public function is_robot($key = NULL)
 	{
-		return $this->is_robot;
+		if ( ! $this->is_robot)
+		{
+			return FALSE;
+		}
+
+		// No need to be specific, it's a robot
+		if ($key === NULL)
+		{
+			return TRUE;
+		}
+
+		// Check for a specific robot
+		return array_key_exists($key, $this->robots) AND $this->robot === $this->robots[$key];
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Is Mobile
 	 *
 	 * @access	public
 	 * @return	bool
-	 */		
-	function is_mobile()
+	 */
+	public function is_mobile($key = NULL)
 	{
-		return $this->is_mobile;
-	}	
+		if ( ! $this->is_mobile)
+		{
+			return FALSE;
+		}
+
+		// No need to be specific, it's a mobile
+		if ($key === NULL)
+		{
+			return TRUE;
+		}
+
+		// Check for a specific robot
+		return array_key_exists($key, $this->mobiles) AND $this->mobile === $this->mobiles[$key];
+	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Is this a referral from another site?
 	 *
 	 * @access	public
 	 * @return	bool
-	 */			
-	function is_referral()
+	 */
+	public function is_referral()
 	{
-		return ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '') ? FALSE : TRUE;
+		return ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '');
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Agent String
 	 *
 	 * @access	public
 	 * @return	string
-	 */			
-	function agent_string()
+	 */
+	public function agent_string()
 	{
 		return $this->agent;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get Platform
 	 *
 	 * @access	public
 	 * @return	string
-	 */			
-	function platform()
+	 */
+	public function platform()
 	{
 		return $this->platform;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get Browser Name
 	 *
 	 * @access	public
 	 * @return	string
-	 */			
-	function browser()
+	 */
+	public function browser()
 	{
 		return $this->browser;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get the Browser Version
 	 *
 	 * @access	public
 	 * @return	string
-	 */			
-	function version()
+	 */
+	public function version()
 	{
 		return $this->version;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get The Robot Name
 	 *
 	 * @access	public
 	 * @return	string
-	 */				
-	function robot()
+	 */
+	public function robot()
 	{
 		return $this->robot;
 	}
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get the Mobile Device
 	 *
 	 * @access	public
 	 * @return	string
-	 */			
-	function mobile()
+	 */
+	public function mobile()
 	{
 		return $this->mobile;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get the referrer
 	 *
 	 * @access	public
 	 * @return	bool
-	 */			
-	function referrer()
+	 */
+	public function referrer()
 	{
 		return ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '') ? '' : trim($_SERVER['HTTP_REFERER']);
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get the accepted languages
 	 *
 	 * @access	public
 	 * @return	array
-	 */			
-	function languages()
+	 */
+	public function languages()
 	{
 		if (count($this->languages) == 0)
 		{
 			$this->_set_languages();
 		}
-	
+
 		return $this->languages;
 	}
 
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Get the accepted Character Sets
 	 *
 	 * @access	public
 	 * @return	array
-	 */			
-	function charsets()
+	 */
+	public function charsets()
 	{
 		if (count($this->charsets) == 0)
 		{
 			$this->_set_charsets();
 		}
-	
+
 		return $this->charsets;
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Test for a particular language
 	 *
 	 * @access	public
 	 * @return	bool
-	 */			
-	function accept_lang($lang = 'en')
+	 */
+	public function accept_lang($lang = 'en')
 	{
-		return (in_array(strtolower($lang), $this->languages(), TRUE)) ? TRUE : FALSE;
+		return (in_array(strtolower($lang), $this->languages(), TRUE));
 	}
-	
+
 	// --------------------------------------------------------------------
-	
+
 	/**
 	 * Test for a particular character set
 	 *
 	 * @access	public
 	 * @return	bool
-	 */			
-	function accept_charset($charset = 'utf-8')
+	 */
+	public function accept_charset($charset = 'utf-8')
 	{
-		return (in_array(strtolower($charset), $this->charsets(), TRUE)) ? TRUE : FALSE;
+		return (in_array(strtolower($charset), $this->charsets(), TRUE));
 	}
-	
-	
+
 }
 
 
diff --git a/system/libraries/Validation.php b/system/libraries/Validation.php
deleted file mode 100644
index a42b7760b..000000000
--- a/system/libraries/Validation.php
+++ /dev/null
@@ -1,875 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * Validation Class
- *
- * @package		CodeIgniter
- * @subpackage	Libraries
- * @category	Validation
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/libraries/validation.html
- */
-class CI_Validation {
-	
-	var $CI;
-	var $error_string		= '';
-	var $_error_array		= array();
-	var $_rules				= array();
-	var $_fields			= array();
-	var $_error_messages	= array();
-	var $_current_field  	= '';
-	var $_safe_form_data 	= FALSE;
-	var $_error_prefix		= '<p>';
-	var $_error_suffix		= '</p>';
-
-	
-
-	/**
-	 * Constructor
-	 *
-	 */	
-	function CI_Validation()
-	{	
-		$this->CI =& get_instance();
-		
-		if (function_exists('mb_internal_encoding'))
-		{
-			mb_internal_encoding($this->CI->config->item('charset'));
-		}
-		
-		log_message('debug', "Validation Class Initialized");
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Set Fields
-	 *
-	 * This function takes an array of field names as input
-	 * and generates class variables with the same name, which will
-	 * either be blank or contain the $_POST value corresponding to it
-	 *
-	 * @access	public
-	 * @param	string
-	 * @param	string
-	 * @return	void
-	 */
-	function set_fields($data = '', $field = '')
-	{	
-		if ($data == '')
-		{
-			if (count($this->_fields) == 0)
-			{
-				return FALSE;
-			}
-		}
-		else
-		{
-			if ( ! is_array($data))
-			{
-				$data = array($data => $field);
-			}
-			
-			if (count($data) > 0)
-			{
-				$this->_fields = $data;
-			}
-		}		
-			
-		foreach($this->_fields as $key => $val)
-		{
-			$this->$key = ( ! isset($_POST[$key])) ? '' : $this->prep_for_form($_POST[$key]);
-			
-			$error = $key.'_error';
-			if ( ! isset($this->$error))
-			{
-				$this->$error = '';
-			}
-		}		
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Set Rules
-	 *
-	 * This function takes an array of field names and validation
-	 * rules as input ad simply stores is for use later.
-	 *
-	 * @access	public
-	 * @param	mixed
-	 * @param	string
-	 * @return	void
-	 */
-	function set_rules($data, $rules = '')
-	{
-		if ( ! is_array($data))
-		{
-			if ($rules == '')
-				return;
-				
-			$data = array($data => $rules);
-		}
-	
-		foreach ($data as $key => $val)
-		{
-			$this->_rules[$key] = $val;
-		}
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Set Error Message
-	 *
-	 * Lets users set their own error messages on the fly.  Note:  The key
-	 * name has to match the  function name that it corresponds to.
-	 *
-	 * @access	public
-	 * @param	string
-	 * @param	string
-	 * @return	string
-	 */
-	function set_message($lang, $val = '')
-	{
-		if ( ! is_array($lang))
-		{
-			$lang = array($lang => $val);
-		}
-	
-		$this->_error_messages = array_merge($this->_error_messages, $lang);
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Set The Error Delimiter
-	 *
-	 * Permits a prefix/suffix to be added to each error message
-	 *
-	 * @access	public
-	 * @param	string
-	 * @param	string
-	 * @return	void
-	 */	
-	function set_error_delimiters($prefix = '<p>', $suffix = '</p>')
-	{
-		$this->_error_prefix = $prefix;
-		$this->_error_suffix = $suffix;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Run the Validator
-	 *
-	 * This function does all the work.
-	 *
-	 * @access	public
-	 * @return	bool
-	 */		
-	function run()
-	{
-		// Do we even have any data to process?  Mm?
-		if (count($_POST) == 0 OR count($this->_rules) == 0)
-		{
-			return FALSE;
-		}
-	
-		// Load the language file containing error messages
-		$this->CI->lang->load('validation');
-							
-		// Cycle through the rules and test for errors
-		foreach ($this->_rules as $field => $rules)
-		{
-			//Explode out the rules!
-			$ex = explode('|', $rules);
-
-			// Is the field required?  If not, if the field is blank  we'll move on to the next test
-			if ( ! in_array('required', $ex, TRUE))
-			{
-				if ( ! isset($_POST[$field]) OR $_POST[$field] == '')
-				{
-					continue;
-				}
-			}
-			
-			/*
-			 * Are we dealing with an "isset" rule?
-			 *
-			 * Before going further, we'll see if one of the rules
-			 * is to check whether the item is set (typically this
-			 * applies only to checkboxes).  If so, we'll
-			 * test for it here since there's not reason to go
-			 * further
-			 */
-			if ( ! isset($_POST[$field]))
-			{			
-				if (in_array('isset', $ex, TRUE) OR in_array('required', $ex))
-				{
-					if ( ! isset($this->_error_messages['isset']))
-					{
-						if (FALSE === ($line = $this->CI->lang->line('isset')))
-						{
-							$line = 'The field was not set';
-						}							
-					}
-					else
-					{
-						$line = $this->_error_messages['isset'];
-					}
-					
-					// Build the error message
-					$mfield = ( ! isset($this->_fields[$field])) ? $field : $this->_fields[$field];
-					$message = sprintf($line, $mfield);
-
-					// Set the error variable.  Example: $this->username_error
-					$error = $field.'_error';
-					$this->$error = $this->_error_prefix.$message.$this->_error_suffix;
-					$this->_error_array[] = $message;
-				}
-						
-				continue;
-			}
-	
-			/*
-			 * Set the current field
-			 *
-			 * The various prepping functions need to know the
-			 * current field name so they can do this:
-			 *
-			 * $_POST[$this->_current_field] == 'bla bla';
-			 */
-			$this->_current_field = $field;
-
-			// Cycle through the rules!
-			foreach ($ex As $rule)
-			{
-				// Is the rule a callback?			
-				$callback = FALSE;
-				if (substr($rule, 0, 9) == 'callback_')
-				{
-					$rule = substr($rule, 9);
-					$callback = TRUE;
-				}
-				
-				// Strip the parameter (if exists) from the rule
-				// Rules can contain a parameter: max_length[5]
-				$param = FALSE;
-				if (preg_match("/(.*?)\[(.*?)\]/", $rule, $match))
-				{
-					$rule	= $match[1];
-					$param	= $match[2];
-				}
-				
-				// Call the function that corresponds to the rule
-				if ($callback === TRUE)
-				{
-					if ( ! method_exists($this->CI, $rule))
-					{ 		
-						continue;
-					}
-					
-					$result = $this->CI->$rule($_POST[$field], $param);	
-					
-					// If the field isn't required and we just processed a callback we'll move on...
-					if ( ! in_array('required', $ex, TRUE) AND $result !== FALSE)
-					{
-						continue 2;
-					}
-					
-				}
-				else
-				{				
-					if ( ! method_exists($this, $rule))
-					{
-						/*
-						 * Run the native PHP function if called for
-						 *
-						 * If our own wrapper function doesn't exist we see
-						 * if a native PHP function does. Users can use
-						 * any native PHP function call that has one param.
-						 */
-						if (function_exists($rule))
-						{
-							$_POST[$field] = $rule($_POST[$field]);
-							$this->$field = $_POST[$field];
-						}
-											
-						continue;
-					}
-					
-					$result = $this->$rule($_POST[$field], $param);
-				}
-								
-				// Did the rule test negatively?  If so, grab the error.
-				if ($result === FALSE)
-				{
-					if ( ! isset($this->_error_messages[$rule]))
-					{
-						if (FALSE === ($line = $this->CI->lang->line($rule)))
-						{
-							$line = 'Unable to access an error message corresponding to your field name.';
-						}						
-					}
-					else
-					{
-						$line = $this->_error_messages[$rule];
-					}				
-
-					// Build the error message
-					$mfield = ( ! isset($this->_fields[$field])) ? $field : $this->_fields[$field];
-					$mparam = ( ! isset($this->_fields[$param])) ? $param : $this->_fields[$param];
-					$message = sprintf($line, $mfield, $mparam);
-					
-					// Set the error variable.  Example: $this->username_error
-					$error = $field.'_error';
-					$this->$error = $this->_error_prefix.$message.$this->_error_suffix;
-
-					// Add the error to the error array
-					$this->_error_array[] = $message;				
-					continue 2;
-				}				
-			}
-			
-		}
-		
-		$total_errors = count($this->_error_array);
-
-		/*
-		 * Recompile the class variables
-		 *
-		 * If any prepping functions were called the $_POST data
-		 * might now be different then the corresponding class
-		 * variables so we'll set them anew.
-		 */	
-		if ($total_errors > 0)
-		{
-			$this->_safe_form_data = TRUE;
-		}
-		
-		$this->set_fields();
-
-		// Did we end up with any errors?
-		if ($total_errors == 0)
-		{
-			return TRUE;
-		}
-		
-		// Generate the error string
-		foreach ($this->_error_array as $val)
-		{
-			$this->error_string .= $this->_error_prefix.$val.$this->_error_suffix."\n";
-		}
-
-		return FALSE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Required
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */
-	function required($str)
-	{
-		if ( ! is_array($str))
-		{
-			return (trim($str) == '') ? FALSE : TRUE;
-		}
-		else
-		{
-			return ( ! empty($str));
-		}
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Match one field to another
-	 *
-	 * @access	public
-	 * @param	string
-	 * @param	field
-	 * @return	bool
-	 */
-	function matches($str, $field)
-	{
-		if ( ! isset($_POST[$field]))
-		{
-			return FALSE;
-		}
-		
-		return ($str !== $_POST[$field]) ? FALSE : TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Minimum Length
-	 *
-	 * @access	public
-	 * @param	string
-	 * @param	value
-	 * @return	bool
-	 */	
-	function min_length($str, $val)
-	{
-		if (preg_match("/[^0-9]/", $val))
-		{
-			return FALSE;
-		}
-
-		if (function_exists('mb_strlen'))
-		{
-			return (mb_strlen($str) < $val) ? FALSE : TRUE;		
-		}
-
-		return (strlen($str) < $val) ? FALSE : TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Max Length
-	 *
-	 * @access	public
-	 * @param	string
-	 * @param	value
-	 * @return	bool
-	 */	
-	function max_length($str, $val)
-	{
-		if (preg_match("/[^0-9]/", $val))
-		{
-			return FALSE;
-		}
-		
-		if (function_exists('mb_strlen'))
-		{
-			return (mb_strlen($str) > $val) ? FALSE : TRUE;		
-		}
-
-		return (strlen($str) > $val) ? FALSE : TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Exact Length
-	 *
-	 * @access	public
-	 * @param	string
-	 * @param	value
-	 * @return	bool
-	 */	
-	function exact_length($str, $val)
-	{
-		if (preg_match("/[^0-9]/", $val))
-		{
-			return FALSE;
-		}
-	
-		if (function_exists('mb_strlen'))
-		{
-			return (mb_strlen($str) != $val) ? FALSE : TRUE;		
-		}
-
-		return (strlen($str) != $val) ? FALSE : TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Valid Email
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */	
-	function valid_email($str)
-	{
-		return ( ! preg_match("/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $str)) ? FALSE : TRUE;
-	}
-
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Valid Emails
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */	
-	function valid_emails($str)
-	{
-		if (strpos($str, ',') === FALSE)
-		{
-			return $this->valid_email(trim($str));
-		}
-		
-		foreach(explode(',', $str) as $email)
-		{
-			if (trim($email) != '' && $this->valid_email(trim($email)) === FALSE)
-			{
-				return FALSE;
-			}
-		}
-		
-		return TRUE;
-	}
-
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Validate IP Address
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	string
-	 */
-	function valid_ip($ip)
-	{
-		return $this->CI->input->valid_ip($ip);
-	}
-
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Alpha
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */		
-	function alpha($str)
-	{
-		return ( ! preg_match("/^([a-z])+$/i", $str)) ? FALSE : TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Alpha-numeric
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */	
-	function alpha_numeric($str)
-	{
-		return ( ! preg_match("/^([a-z0-9])+$/i", $str)) ? FALSE : TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Alpha-numeric with underscores and dashes
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */	
-	function alpha_dash($str)
-	{
-		return ( ! preg_match("/^([-a-z0-9_-])+$/i", $str)) ? FALSE : TRUE;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Numeric
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */	
-	function numeric($str)
-	{
-		return (bool)preg_match( '/^[\-+]?[0-9]*\.?[0-9]+$/', $str);
-
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Is Numeric
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */
-  	function is_numeric($str)
-	{
-		return ( ! is_numeric($str)) ? FALSE : TRUE;
-	} 
-
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Integer
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */	
-	function integer($str)
-	{
-		return (bool)preg_match( '/^[\-+]?[0-9]+$/', $str);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Is a Natural number  (0,1,2,3, etc.)
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */
-	function is_natural($str)
-	{   
-   		return (bool)preg_match( '/^[0-9]+$/', $str);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Is a Natural number, but not a zero  (1,2,3, etc.)
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */
-	function is_natural_no_zero($str)
-	{   
-		if ( ! preg_match( '/^[0-9]+$/', $str))
-		{
-			return FALSE;
-		}
-	
-		if ($str == 0)
-		{
-			return FALSE;
-		}
-
-		return TRUE;
-	}
-
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Valid Base64
-	 *
-	 * Tests a string for characters outside of the Base64 alphabet
-	 * as defined by RFC 2045 http://www.faqs.org/rfcs/rfc2045
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	bool
-	 */
-	function valid_base64($str)
-	{
-		return (bool) ! preg_match('/[^a-zA-Z0-9\/\+=]/', $str);
-	}
-
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Set Select
-	 *
-	 * Enables pull-down lists to be set to the value the user
-	 * selected in the event of an error
-	 *
-	 * @access	public
-	 * @param	string
-	 * @param	string
-	 * @return	string
-	 */	
-	function set_select($field = '', $value = '')
-	{
-		if ($field == '' OR $value == '' OR  ! isset($_POST[$field]))
-		{
-			return '';
-		}
-			
-		if ($_POST[$field] == $value)
-		{
-			return ' selected="selected"';
-		}
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Set Radio
-	 *
-	 * Enables radio buttons to be set to the value the user
-	 * selected in the event of an error
-	 *
-	 * @access	public
-	 * @param	string
-	 * @param	string
-	 * @return	string
-	 */	
-	function set_radio($field = '', $value = '')
-	{
-		if ($field == '' OR $value == '' OR  ! isset($_POST[$field]))
-		{
-			return '';
-		}
-			
-		if ($_POST[$field] == $value)
-		{
-			return ' checked="checked"';
-		}
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Set Checkbox
-	 *
-	 * Enables checkboxes to be set to the value the user
-	 * selected in the event of an error
-	 *
-	 * @access	public
-	 * @param	string
-	 * @param	string
-	 * @return	string
-	 */	
-	function set_checkbox($field = '', $value = '')
-	{
-		if ($field == '' OR $value == '' OR  ! isset($_POST[$field]))
-		{
-			return '';
-		}
-			
-		if ($_POST[$field] == $value)
-		{
-			return ' checked="checked"';
-		}
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Prep data for form
-	 *
-	 * This function allows HTML to be safely shown in a form.
-	 * Special characters are converted.
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	string
-	 */
-	function prep_for_form($data = '')
-	{
-		if (is_array($data))
-		{
-			foreach ($data as $key => $val)
-			{
-				$data[$key] = $this->prep_for_form($val);
-			}
-			
-			return $data;
-		}
-		
-		if ($this->_safe_form_data == FALSE OR $data == '')
-		{
-			return $data;
-		}
-
-		return str_replace(array("'", '"', '<', '>'), array("&#39;", "&quot;", '&lt;', '&gt;'), stripslashes($data));
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Prep URL
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	string
-	 */	
-	function prep_url($str = '')
-	{
-		if ($str == 'http://' OR $str == '')
-		{
-			$_POST[$this->_current_field] = '';
-			return;
-		}
-		
-		if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://')
-		{
-			$str = 'http://'.$str;
-		}
-		
-		$_POST[$this->_current_field] = $str;
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Strip Image Tags
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	string
-	 */	
-	function strip_image_tags($str)
-	{
-		$_POST[$this->_current_field] = $this->CI->input->strip_image_tags($str);
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * XSS Clean
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	string
-	 */	
-	function xss_clean($str)
-	{
-		$_POST[$this->_current_field] = $this->CI->input->xss_clean($str);
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Convert PHP tags to entities
-	 *
-	 * @access	public
-	 * @param	string
-	 * @return	string
-	 */	
-	function encode_php_tags($str)
-	{
-		$_POST[$this->_current_field] = str_replace(array('<?php', '<?PHP', '<?', '?>'),  array('&lt;?php', '&lt;?PHP', '&lt;?', '?&gt;'), $str);
-	}
-
-}
-// END Validation Class
-
-/* End of file Validation.php */
-/* Location: ./system/libraries/Validation.php */
\ No newline at end of file
diff --git a/system/libraries/Xmlrpc.php b/system/libraries/Xmlrpc.php
index fe5562fef..9cf307cc0 100644..100755
--- a/system/libraries/Xmlrpc.php
+++ b/system/libraries/Xmlrpc.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -14,7 +14,7 @@
  */
 
 if ( ! function_exists('xml_parser_create'))
-{	
+{
 	show_error('Your PHP installation does not support XML');
 }
 
@@ -32,60 +32,61 @@ if ( ! function_exists('xml_parser_create'))
  */
 class CI_Xmlrpc {
 
-	var $debug			= FALSE; 	// Debugging on or off	
+	var $debug			= FALSE;	// Debugging on or off
 	var $xmlrpcI4		= 'i4';
 	var $xmlrpcInt		= 'int';
 	var $xmlrpcBoolean	= 'boolean';
-	var $xmlrpcDouble	= 'double';	
+	var $xmlrpcDouble	= 'double';
 	var $xmlrpcString	= 'string';
 	var $xmlrpcDateTime	= 'dateTime.iso8601';
 	var $xmlrpcBase64	= 'base64';
 	var $xmlrpcArray	= 'array';
 	var $xmlrpcStruct	= 'struct';
-	
+
 	var $xmlrpcTypes	= array();
 	var $valid_parents	= array();
 	var $xmlrpcerr		= array();	// Response numbers
 	var $xmlrpcstr		= array();  // Response strings
-	
+
 	var $xmlrpc_defencoding = 'UTF-8';
 	var $xmlrpcName			= 'XML-RPC for CodeIgniter';
 	var $xmlrpcVersion		= '1.1';
 	var $xmlrpcerruser		= 800; // Start of user errors
 	var $xmlrpcerrxml		= 100; // Start of XML Parse errors
 	var $xmlrpc_backslash	= ''; // formulate backslashes for escaping regexp
-	
+
 	var $client;
 	var $method;
 	var $data;
 	var $message			= '';
-	var $error				= '';  		// Error string for request
+	var $error				= '';		// Error string for request
 	var $result;
 	var $response			= array();  // Response from remote server
 
+	var $xss_clean			= TRUE;
 
 	//-------------------------------------
 	//  VALUES THAT MULTIPLE CLASSES NEED
 	//-------------------------------------
 
-	function CI_Xmlrpc ($config = array())
+	public function __construct($config = array())
 	{
-		$this->xmlrpcName 		= $this->xmlrpcName;
+		$this->xmlrpcName		= $this->xmlrpcName;
 		$this->xmlrpc_backslash = chr(92).chr(92);
-		
+
 		// Types for info sent back and forth
 		$this->xmlrpcTypes = array(
-			$this->xmlrpcI4	   => '1',
-			$this->xmlrpcInt	  => '1',
-			$this->xmlrpcBoolean  => '1',
-			$this->xmlrpcString   => '1',
-			$this->xmlrpcDouble   => '1',
-			$this->xmlrpcDateTime => '1',
-			$this->xmlrpcBase64   => '1',
-			$this->xmlrpcArray	=> '2',
-			$this->xmlrpcStruct   => '3'
+			$this->xmlrpcI4	 		=> '1',
+			$this->xmlrpcInt		=> '1',
+			$this->xmlrpcBoolean	=> '1',
+			$this->xmlrpcString		=> '1',
+			$this->xmlrpcDouble		=> '1',
+			$this->xmlrpcDateTime	=> '1',
+			$this->xmlrpcBase64		=> '1',
+			$this->xmlrpcArray		=> '2',
+			$this->xmlrpcStruct		=> '3'
 			);
-			
+
 		// Array of Valid Parents for Various XML-RPC elements
 		$this->valid_parents = array('BOOLEAN'			=> array('VALUE'),
 									 'I4'				=> array('VALUE'),
@@ -105,13 +106,13 @@ class CI_Xmlrpc {
 									 'FAULT'			=> array('METHODRESPONSE'),
 									 'VALUE'			=> array('MEMBER', 'DATA', 'PARAM', 'FAULT')
 									 );
-			
-			
+
+
 		// XML-RPC Responses
 		$this->xmlrpcerr['unknown_method'] = '1';
 		$this->xmlrpcstr['unknown_method'] = 'This is not a known method for this XML-RPC Server';
 		$this->xmlrpcerr['invalid_return'] = '2';
-		$this->xmlrpcstr['invalid_return'] = 'The XML data receieved was either invalid or not in the correct form for XML-RPC.  Turn on debugging to examine the XML data further.';
+		$this->xmlrpcstr['invalid_return'] = 'The XML data received was either invalid or not in the correct form for XML-RPC.  Turn on debugging to examine the XML data further.';
 		$this->xmlrpcerr['incorrect_params'] = '3';
 		$this->xmlrpcstr['incorrect_params'] = 'Incorrect parameters were passed to method';
 		$this->xmlrpcerr['introspect_unknown'] = '4';
@@ -120,13 +121,13 @@ class CI_Xmlrpc {
 		$this->xmlrpcstr['http_error'] = "Did not receive a '200 OK' response from remote server.";
 		$this->xmlrpcerr['no_data'] = '6';
 		$this->xmlrpcstr['no_data'] ='No data received from server.';
-		
+
 		$this->initialize($config);
-		
+
 		log_message('debug', "XML-RPC Class Initialized");
 	}
-	
-	
+
+
 	//-------------------------------------
 	//  Initialize Prefs
 	//-------------------------------------
@@ -139,13 +140,13 @@ class CI_Xmlrpc {
 			{
 				if (isset($this->$key))
 				{
-					$this->$key = $val;			
+					$this->$key = $val;
 				}
 			}
 		}
 	}
 	// END
-	
+
 	//-------------------------------------
 	//  Take URL and parse it
 	//-------------------------------------
@@ -156,20 +157,20 @@ class CI_Xmlrpc {
 		{
 			$url = "http://".$url;
 		}
-		
+
 		$parts = parse_url($url);
-		
+
 		$path = ( ! isset($parts['path'])) ? '/' : $parts['path'];
-		
+
 		if (isset($parts['query']) && $parts['query'] != '')
 		{
 			$path .= '?'.$parts['query'];
-		}	
-		
+		}
+
 		$this->client = new XML_RPC_Client($path, $parts['host'], $port);
 	}
 	// END
-	
+
 	//-------------------------------------
 	//  Set Timeout
 	//-------------------------------------
@@ -182,7 +183,7 @@ class CI_Xmlrpc {
 		}
 	}
 	// END
-	
+
 	//-------------------------------------
 	//  Set Methods
 	//-------------------------------------
@@ -192,7 +193,7 @@ class CI_Xmlrpc {
 		$this->method = $function;
 	}
 	// END
-	
+
 	//-------------------------------------
 	//  Take Array of Data and Create Objects
 	//-------------------------------------
@@ -203,17 +204,17 @@ class CI_Xmlrpc {
 		{
 			// Send Error
 		}
-		
+
 		$this->data = array();
-		
+
 		foreach($incoming as $key => $value)
 		{
 			$this->data[$key] = $this->values_parsing($value);
 		}
 	}
 	// END
-	
-	
+
+
 	//-------------------------------------
 	//  Set Debug
 	//-------------------------------------
@@ -222,14 +223,14 @@ class CI_Xmlrpc {
 	{
 		$this->debug = ($flag == TRUE) ? TRUE : FALSE;
 	}
-	
+
 	//-------------------------------------
 	//  Values Parsing
 	//-------------------------------------
 
 	function values_parsing($value, $return = FALSE)
 	{
-		if (is_array($value) && isset($value['0']))
+		if (is_array($value) && array_key_exists(0, $value))
 		{
 			if ( ! isset($value['1']) OR (! isset($this->xmlrpcTypes[$value['1']])))
 			{
@@ -248,7 +249,7 @@ class CI_Xmlrpc {
 				{
 					$value['0'][$k] = $this->values_parsing($value['0'][$k], TRUE);
 				}
-				
+
 				$temp = new XML_RPC_Values($value['0'], $value['1']);
 			}
 			else
@@ -274,7 +275,7 @@ class CI_Xmlrpc {
 	{
 		$this->message = new XML_RPC_Message($this->method,$this->data);
 		$this->message->debug = $this->debug;
-	
+
 		if ( ! $this->result = $this->client->send($this->message))
 		{
 			$this->error = $this->result->errstr;
@@ -285,13 +286,13 @@ class CI_Xmlrpc {
 			$this->error = $this->result->errstr;
 			return FALSE;
 		}
-		
+
 		$this->response = $this->result->decode();
-		
+
 		return TRUE;
 	}
 	// END
-	
+
 	//-------------------------------------
 	//  Returns Error
 	//-------------------------------------
@@ -301,7 +302,7 @@ class CI_Xmlrpc {
 		return $this->error;
 	}
 	// END
-	
+
 	//-------------------------------------
 	//  Returns Remote Server Response
 	//-------------------------------------
@@ -311,37 +312,37 @@ class CI_Xmlrpc {
 		return $this->response;
 	}
 	// END
-	
+
 	//-------------------------------------
 	//  Sends an Error Message for Server Request
 	//-------------------------------------
-	
+
 	function send_error_message($number, $message)
 	{
 		return new XML_RPC_Response('0',$number, $message);
 	}
 	// END
-	
-	
+
+
 	//-------------------------------------
 	//  Send Response for Server Request
 	//-------------------------------------
-	
+
 	function send_response($response)
 	{
 		// $response should be array of values, which will be parsed
 		// based on their data and type into a valid group of XML-RPC values
-		
+
 		$response = $this->values_parsing($response);
-	
+
 		return new XML_RPC_Response($response);
 	}
 	// END
-	
+
 } // END XML_RPC Class
 
-	
-	
+
+
 /**
  * XML-RPC Client class
  *
@@ -359,15 +360,15 @@ class XML_RPC_Client extends CI_Xmlrpc
 	var $timeout		= 5;
 	var $no_multicall	= false;
 
-	function XML_RPC_Client($path, $server, $port=80)
+	public function __construct($path, $server, $port=80)
 	{
-		parent::CI_Xmlrpc();
-		
+		parent::__construct();
+
 		$this->port = $port;
 		$this->server = $server;
 		$this->path = $path;
 	}
-	
+
 	function send($msg)
 	{
 		if (is_array($msg))
@@ -381,22 +382,22 @@ class XML_RPC_Client extends CI_Xmlrpc
 	}
 
 	function sendPayload($msg)
-	{	
+	{
 		$fp = @fsockopen($this->server, $this->port,$this->errno, $this->errstr, $this->timeout);
-		
+
 		if ( ! is_resource($fp))
 		{
 			error_log($this->xmlrpcstr['http_error']);
 			$r = new XML_RPC_Response(0, $this->xmlrpcerr['http_error'],$this->xmlrpcstr['http_error']);
 			return $r;
 		}
-		
+
 		if(empty($msg->payload))
 		{
 			// $msg = XML_RPC_Messages
 			$msg->createPayload();
 		}
-		
+
 		$r = "\r\n";
 		$op  = "POST {$this->path} HTTP/1.0$r";
 		$op .= "Host: {$this->server}$r";
@@ -404,7 +405,7 @@ class XML_RPC_Client extends CI_Xmlrpc
 		$op .= "User-Agent: {$this->xmlrpcName}$r";
 		$op .= "Content-Length: ".strlen($msg->payload). "$r$r";
 		$op .= $msg->payload;
-		
+
 
 		if ( ! fputs($fp, $op, strlen($op)))
 		{
@@ -433,9 +434,10 @@ class XML_RPC_Response
 	var $errno = 0;
 	var $errstr = '';
 	var $headers = array();
+	var $xss_clean = TRUE;
 
-	function XML_RPC_Response($val, $code = 0, $fstr = '')
-	{	
+	public function __construct($val, $code = 0, $fstr = '')
+	{
 		if ($code != 0)
 		{
 			// error
@@ -468,7 +470,7 @@ class XML_RPC_Response
 	{
 		return $this->val;
 	}
-	
+
 	function prepare_response()
 	{
 		$result = "<methodResponse>\n";
@@ -498,11 +500,16 @@ class XML_RPC_Response
 		$result .= "\n</methodResponse>";
 		return $result;
 	}
-	
+
 	function decode($array=FALSE)
 	{
 		$CI =& get_instance();
 
+		if ($this->xss_clean && ! isset($CI->security))
+		{
+			$CI->load->library('security');
+		}
+
 		if ($array !== FALSE && is_array($array))
 		{
 			while (list($key) = each($array))
@@ -513,31 +520,31 @@ class XML_RPC_Response
 				}
 				else
 				{
-					$array[$key] = $CI->input->xss_clean($array[$key]);
+					$array[$key] = ($this->xss_clean) ? $CI->security->xss_clean($array[$key]) : $array[$key];
 				}
 			}
-			
+
 			$result = $array;
 		}
 		else
 		{
 			$result = $this->xmlrpc_decoder($this->val);
-			
+
 			if (is_array($result))
 			{
 				$result = $this->decode($result);
 			}
 			else
 			{
-				$result = $CI->input->xss_clean($result);
+				$result = ($this->xss_clean) ? $CI->security->xss_clean($result) : $result;
 			}
 		}
-		
+
 		return $result;
 	}
 
-	
-	
+
+
 	//-------------------------------------
 	//  XML-RPC Object to PHP Types
 	//-------------------------------------
@@ -555,7 +562,7 @@ class XML_RPC_Response
 			reset($xmlrpc_val->me);
 			list($a,$b) = each($xmlrpc_val->me);
 			$size = count($b);
-			
+
 			$arr = array();
 
 			for($i = 0; $i < $size; $i++)
@@ -576,8 +583,8 @@ class XML_RPC_Response
 			return $arr;
 		}
 	}
-	
-	
+
+
 	//-------------------------------------
 	//  ISO-8601 time to server or UTC time
 	//-------------------------------------
@@ -595,7 +602,7 @@ class XML_RPC_Response
 		}
 		return $t;
 	}
-	
+
 } // End Response Class
 
 
@@ -612,12 +619,12 @@ class XML_RPC_Message extends CI_Xmlrpc
 	var $payload;
 	var $method_name;
 	var $params			= array();
-	var $xh 			= array();
+	var $xh				= array();
 
-	function XML_RPC_Message($method, $pars=0)
+	public function __construct($method, $pars=0)
 	{
-		parent::CI_Xmlrpc();
-		
+		parent::__construct();
+
 		$this->method_name = $method;
 		if (is_array($pars) && count($pars) > 0)
 		{
@@ -628,51 +635,51 @@ class XML_RPC_Message extends CI_Xmlrpc
 			}
 		}
 	}
-	
+
 	//-------------------------------------
 	//  Create Payload to Send
 	//-------------------------------------
-	
+
 	function createPayload()
 	{
 		$this->payload = "<?xml version=\"1.0\"?".">\r\n<methodCall>\r\n";
 		$this->payload .= '<methodName>' . $this->method_name . "</methodName>\r\n";
 		$this->payload .= "<params>\r\n";
-		
+
 		for($i=0; $i<count($this->params); $i++)
 		{
 			// $p = XML_RPC_Values
 			$p = $this->params[$i];
 			$this->payload .= "<param>\r\n".$p->serialize_class()."</param>\r\n";
 		}
-		
+
 		$this->payload .= "</params>\r\n</methodCall>\r\n";
 	}
-	
+
 	//-------------------------------------
 	//  Parse External XML-RPC Server's Response
 	//-------------------------------------
-	
+
 	function parseResponse($fp)
 	{
 		$data = '';
-		
+
 		while($datum = fread($fp, 4096))
 		{
 			$data .= $datum;
 		}
-		
+
 		//-------------------------------------
 		//  DISPLAY HTTP CONTENT for DEBUGGING
 		//-------------------------------------
-		
+
 		if ($this->debug === TRUE)
 		{
 			echo "<pre>";
 			echo "---DATA---\n" . htmlspecialchars($data) . "\n---END DATA---\n\n";
 			echo "</pre>";
 		}
-		
+
 		//-------------------------------------
 		//  Check for data
 		//-------------------------------------
@@ -683,32 +690,32 @@ class XML_RPC_Message extends CI_Xmlrpc
 			$r = new XML_RPC_Response(0, $this->xmlrpcerr['no_data'], $this->xmlrpcstr['no_data']);
 			return $r;
 		}
-		
-		
+
+
 		//-------------------------------------
 		//  Check for HTTP 200 Response
 		//-------------------------------------
-		
+
 		if (strncmp($data, 'HTTP', 4) == 0 && ! preg_match('/^HTTP\/[0-9\.]+ 200 /', $data))
 		{
 			$errstr= substr($data, 0, strpos($data, "\n")-1);
 			$r = new XML_RPC_Response(0, $this->xmlrpcerr['http_error'], $this->xmlrpcstr['http_error']. ' (' . $errstr . ')');
 			return $r;
 		}
-		
+
 		//-------------------------------------
 		//  Create and Set Up XML Parser
 		//-------------------------------------
-	
+
 		$parser = xml_parser_create($this->xmlrpc_defencoding);
 
-		$this->xh[$parser]				 = array();
-		$this->xh[$parser]['isf']		 = 0;
-		$this->xh[$parser]['ac']		 = '';
-		$this->xh[$parser]['headers'] 	 = array();
-		$this->xh[$parser]['stack']		 = array();
-		$this->xh[$parser]['valuestack'] = array();
-		$this->xh[$parser]['isf_reason'] = 0;
+		$this->xh[$parser]					= array();
+		$this->xh[$parser]['isf']			= 0;
+		$this->xh[$parser]['ac']			= '';
+		$this->xh[$parser]['headers']		= array();
+		$this->xh[$parser]['stack']			= array();
+		$this->xh[$parser]['valuestack']	= array();
+		$this->xh[$parser]['isf_reason']	= 0;
 
 		xml_set_object($parser, $this);
 		xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, true);
@@ -720,7 +727,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 		//-------------------------------------
 		//  GET HEADERS
 		//-------------------------------------
-		
+
 		$lines = explode("\r\n", $data);
 		while (($line = array_shift($lines)))
 		{
@@ -731,11 +738,11 @@ class XML_RPC_Message extends CI_Xmlrpc
 			$this->xh[$parser]['headers'][] = $line;
 		}
 		$data = implode("\r\n", $lines);
-		
-		
+
+
 		//-------------------------------------
 		//  PARSE XML DATA
-		//-------------------------------------  	
+		//-------------------------------------
 
 		if ( ! xml_parse($parser, $data, count($data)))
 		{
@@ -748,11 +755,11 @@ class XML_RPC_Message extends CI_Xmlrpc
 			return $r;
 		}
 		xml_parser_free($parser);
-		
+
 		// ---------------------------------------
 		//  Got Ourselves Some Badness, It Seems
 		// ---------------------------------------
-		
+
 		if ($this->xh[$parser]['isf'] > 1)
 		{
 			if ($this->debug === TRUE)
@@ -761,7 +768,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 				echo $this->xh[$parser]['isf_reason'];
 				echo "---Invalid Return---\n\n";
 			}
-				
+
 			$r = new XML_RPC_Response(0, $this->xmlrpcerr['invalid_return'],$this->xmlrpcstr['invalid_return'].' '.$this->xh[$parser]['isf_reason']);
 			return $r;
 		}
@@ -770,15 +777,15 @@ class XML_RPC_Message extends CI_Xmlrpc
 			$r = new XML_RPC_Response(0, $this->xmlrpcerr['invalid_return'],$this->xmlrpcstr['invalid_return'].' '.$this->xh[$parser]['isf_reason']);
 			return $r;
 		}
-		
+
 		//-------------------------------------
 		//  DISPLAY XML CONTENT for DEBUGGING
-		//-------------------------------------  	
-		
+		//-------------------------------------
+
 		if ($this->debug === TRUE)
 		{
 			echo "<pre>";
-			
+
 			if (count($this->xh[$parser]['headers'] > 0))
 			{
 				echo "---HEADERS---\n";
@@ -788,20 +795,20 @@ class XML_RPC_Message extends CI_Xmlrpc
 				}
 				echo "---END HEADERS---\n\n";
 			}
-			
+
 			echo "---DATA---\n" . htmlspecialchars($data) . "\n---END DATA---\n\n";
-			
+
 			echo "---PARSED---\n" ;
 			var_dump($this->xh[$parser]['value']);
 			echo "\n---END PARSED---</pre>";
 		}
-		
+
 		//-------------------------------------
 		//  SEND RESPONSE
 		//-------------------------------------
-		
+
 		$v = $this->xh[$parser]['value'];
-			
+
 		if ($this->xh[$parser]['isf'])
 		{
 			$errno_v = $v->me['struct']['faultCode'];
@@ -824,11 +831,11 @@ class XML_RPC_Message extends CI_Xmlrpc
 		$r->headers = $this->xh[$parser]['headers'];
 		return $r;
 	}
-	
+
 	// ------------------------------------
 	//  Begin Return Message Parsing section
 	// ------------------------------------
-	
+
 	// quick explanation of components:
 	//   ac - used to accumulate values
 	//   isf - used to indicate a fault
@@ -847,9 +854,9 @@ class XML_RPC_Message extends CI_Xmlrpc
 	{
 		// If invalid nesting, then return
 		if ($this->xh[$the_parser]['isf'] > 1) return;
-		
+
 		// Evaluate and check for correct nesting of XML elements
-		
+
 		if (count($this->xh[$the_parser]['stack']) == 0)
 		{
 			if ($name != 'METHODRESPONSE' && $name != 'METHODCALL')
@@ -869,16 +876,16 @@ class XML_RPC_Message extends CI_Xmlrpc
 				return;
 			}
 		}
-		
+
 		switch($name)
 		{
 			case 'STRUCT':
 			case 'ARRAY':
 				// Creates array for child elements
-				
+
 				$cur_val = array('value' => array(),
 								 'type'	 => $name);
-								
+
 				array_unshift($this->xh[$the_parser]['valuestack'], $cur_val);
 			break;
 			case 'METHODNAME':
@@ -910,13 +917,13 @@ class XML_RPC_Message extends CI_Xmlrpc
 					$this->xh[$the_parser]['isf_reason'] = "'Twas a $name element following a ".$this->xh[$the_parser]['vt']." element inside a single value";
 					return;
 				}
-				
+
 				$this->xh[$the_parser]['ac'] = '';
 			break;
 			case 'MEMBER':
 				// Set name of <member> to nothing to prevent errors later if no <name> is found
 				$this->xh[$the_parser]['valuestack'][0]['name'] = '';
-				
+
 				// Set NULL value to check to see if value passed for this param/member
 				$this->xh[$the_parser]['value'] = null;
 			break;
@@ -932,7 +939,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 				$this->xh[$the_parser]['isf_reason'] = "Invalid XML-RPC element found: $name";
 			break;
 		}
-		
+
 		// Add current element name to stack, to allow validation of nesting
 		array_unshift($this->xh[$the_parser]['stack'], $name);
 
@@ -948,14 +955,14 @@ class XML_RPC_Message extends CI_Xmlrpc
 	function closing_tag($the_parser, $name)
 	{
 		if ($this->xh[$the_parser]['isf'] > 1) return;
-		
+
 		// Remove current element from stack and set variable
 		// NOTE: If the XML validates, then we do not have to worry about
 		// the opening and closing of elements.  Nesting is checked on the opening
 		// tag so we be safe there as well.
-		
+
 		$curr_elem = array_shift($this->xh[$the_parser]['stack']);
-	
+
 		switch($name)
 		{
 			case 'STRUCT':
@@ -975,7 +982,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 			case 'DATETIME.ISO8601':
 			case 'BASE64':
 				$this->xh[$the_parser]['vt'] = strtolower($name);
-				
+
 				if ($name == 'STRING')
 				{
 					$this->xh[$the_parser]['value'] = $this->xh[$the_parser]['ac'];
@@ -1037,10 +1044,10 @@ class XML_RPC_Message extends CI_Xmlrpc
 					$this->xh[$the_parser]['value']	= $this->xh[$the_parser]['ac'];
 					$this->xh[$the_parser]['vt']	= $this->xmlrpcString;
 				}
-				
+
 				// build the XML-RPC value out of the data received, and substitute it
 				$temp = new XML_RPC_Values($this->xh[$the_parser]['value'], $this->xh[$the_parser]['vt']);
-				
+
 				if (count($this->xh[$the_parser]['valuestack']) && $this->xh[$the_parser]['valuestack'][0]['type'] == 'ARRAY')
 				{
 					// Array
@@ -1054,7 +1061,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 			break;
 			case 'MEMBER':
 				$this->xh[$the_parser]['ac']='';
-				
+
 				// If value add to array in the stack for the last element built
 				if ($this->xh[$the_parser]['value'])
 				{
@@ -1092,7 +1099,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 	function character_data($the_parser, $data)
 	{
 		if ($this->xh[$the_parser]['isf'] > 1) return; // XML Fault found already
-		
+
 		// If a value has not been found
 		if ($this->xh[$the_parser]['lv'] != 3)
 		{
@@ -1100,22 +1107,27 @@ class XML_RPC_Message extends CI_Xmlrpc
 			{
 				$this->xh[$the_parser]['lv'] = 2; // Found a value
 			}
-				
+
 			if( ! @isset($this->xh[$the_parser]['ac']))
 			{
 				$this->xh[$the_parser]['ac'] = '';
 			}
-				
+
 			$this->xh[$the_parser]['ac'] .= $data;
 		}
 	}
-	
-	
+
+
 	function addParam($par) { $this->params[]=$par; }
-	
+
 	function output_parameters($array=FALSE)
 	{
-		$CI =& get_instance();	
+		$CI =& get_instance();
+
+		if ($this->xss_clean && ! isset($CI->security))
+		{
+			$CI->load->library('security');
+		}
 
 		if ($array !== FALSE && is_array($array))
 		{
@@ -1127,35 +1139,37 @@ class XML_RPC_Message extends CI_Xmlrpc
 				}
 				else
 				{
-					$array[$key] = $CI->input->xss_clean($array[$key]);
+					// 'bits' is for the MetaWeblog API image bits
+					// @todo - this needs to be made more general purpose
+					$array[$key] = ($key == 'bits' OR $this->xss_clean == FALSE) ? $array[$key] : $CI->security->xss_clean($array[$key]);
 				}
 			}
-			
+
 			$parameters = $array;
 		}
 		else
 		{
 			$parameters = array();
-		
+
 			for ($i = 0; $i < count($this->params); $i++)
 			{
 				$a_param = $this->decode_message($this->params[$i]);
-				
+
 				if (is_array($a_param))
 				{
 					$parameters[] = $this->output_parameters($a_param);
 				}
 				else
 				{
-					$parameters[] = $CI->input->xss_clean($a_param);
+					$parameters[] = ($this->xss_clean) ? $CI->security->xss_clean($a_param) : $a_param;
 				}
-			}	
+			}
 		}
-		
+
 		return $parameters;
 	}
-	
-	
+
+
 	function decode_message($param)
 	{
 		$kind = $param->kindOf();
@@ -1168,31 +1182,31 @@ class XML_RPC_Message extends CI_Xmlrpc
 		{
 			reset($param->me);
 			list($a,$b) = each($param->me);
-			
+
 			$arr = array();
 
 			for($i = 0; $i < count($b); $i++)
 			{
 				$arr[] = $this->decode_message($param->me['array'][$i]);
 			}
-			
+
 			return $arr;
 		}
 		elseif($kind == 'struct')
 		{
 			reset($param->me['struct']);
-			
+
 			$arr = array();
 
 			while(list($key,$value) = each($param->me['struct']))
 			{
 				$arr[$key] = $this->decode_message($value);
 			}
-			
+
 			return $arr;
 		}
 	}
-	
+
 } // End XML_RPC_Messages class
 
 
@@ -1206,17 +1220,17 @@ class XML_RPC_Message extends CI_Xmlrpc
  */
 class XML_RPC_Values extends CI_Xmlrpc
 {
-	var $me 	= array();
+	var $me		= array();
 	var $mytype	= 0;
 
-	function XML_RPC_Values($val=-1, $type='')
-	{	
-		parent::CI_Xmlrpc();
-		
+	public function __construct($val=-1, $type='')
+	{
+		parent::__construct();
+
 		if ($val != -1 OR $type != '')
 		{
 			$type = $type == '' ? 'string' : $type;
-			
+
 			if ($this->xmlrpcTypes[$type] == 1)
 			{
 				$this->addScalar($val,$type);
@@ -1235,13 +1249,13 @@ class XML_RPC_Values extends CI_Xmlrpc
 	function addScalar($val, $type='string')
 	{
 		$typeof = $this->xmlrpcTypes[$type];
-		
+
 		if ($this->mytype==1)
 		{
 			echo '<strong>XML_RPC_Values</strong>: scalar can have only one value<br />';
 			return 0;
 		}
-		
+
 		if ($typeof != 1)
 		{
 			echo '<strong>XML_RPC_Values</strong>: not a scalar type (${typeof})<br />';
@@ -1322,7 +1336,7 @@ class XML_RPC_Values extends CI_Xmlrpc
 	function serializedata($typ, $val)
 	{
 		$rs = '';
-		
+
 		switch($this->xmlrpcTypes[$typ])
 		{
 			case 3:
@@ -1378,12 +1392,12 @@ class XML_RPC_Values extends CI_Xmlrpc
 	{
 		$ar = $o->me;
 		reset($ar);
-		
+
 		list($typ, $val) = each($ar);
 		$rs = "<value>\n".$this->serializedata($typ, $val)."</value>\n";
 		return $rs;
 	}
-	
+
 	function scalarval()
 	{
 		reset($this->me);
@@ -1395,11 +1409,11 @@ class XML_RPC_Values extends CI_Xmlrpc
 	//-------------------------------------
 	// Encode time in ISO-8601 form.
 	//-------------------------------------
-	
+
 	// Useful for sending time in XML-RPC
 
 	function iso8601_encode($time, $utc=0)
-	{	
+	{
 		if ($utc == 1)
 		{
 			$t = strftime("%Y%m%dT%H:%M:%S", $time);
@@ -1413,7 +1427,7 @@ class XML_RPC_Values extends CI_Xmlrpc
 		}
 		return $t;
 	}
-	
+
 }
 // END XML_RPC_Values Class
 
diff --git a/system/libraries/Xmlrpcs.php b/system/libraries/Xmlrpcs.php
index 429ab8472..6bedfe324 100644..100755
--- a/system/libraries/Xmlrpcs.php
+++ b/system/libraries/Xmlrpcs.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -14,7 +14,7 @@
  */
 
 if ( ! function_exists('xml_parser_create'))
-{	
+{
 	show_error('Your PHP installation does not support XML');
 }
 
@@ -36,57 +36,60 @@ if ( ! class_exists('CI_Xmlrpc'))
  */
 class CI_Xmlrpcs extends CI_Xmlrpc
 {
-	var $methods		= array(); 	//array of methods mapped to function names and signatures
+	var $methods		= array();	//array of methods mapped to function names and signatures
 	var $debug_msg		= '';		// Debug Message
-	var $system_methods = array(); // XML RPC Server methods
+	var $system_methods = array();	// XML RPC Server methods
 	var $controller_obj;
 
 	var $object			= FALSE;
-	
-	
-	//-------------------------------------
-	//  Constructor, more or less
-	//-------------------------------------
 
-	function CI_Xmlrpcs($config=array())
-	{	
-		parent::CI_Xmlrpc();
+	/**
+	 * Constructor
+	 */
+	public function __construct($config=array())
+	{
+		parent::__construct();
 		$this->set_system_methods();
-	
+
 		if (isset($config['functions']) && is_array($config['functions']))
 		{
 			$this->methods = array_merge($this->methods, $config['functions']);
 		}
-		
+
 		log_message('debug', "XML-RPC Server Class Initialized");
 	}
-	
+
 	//-------------------------------------
 	//  Initialize Prefs and Serve
 	//-------------------------------------
-	
+
 	function initialize($config=array())
-	{	
+	{
 		if (isset($config['functions']) && is_array($config['functions']))
 		{
 			$this->methods = array_merge($this->methods, $config['functions']);
 		}
-		
+
 		if (isset($config['debug']))
 		{
 			$this->debug = $config['debug'];
 		}
-		
+
 		if (isset($config['object']) && is_object($config['object']))
 		{
 			$this->object = $config['object'];
 		}
+
+		if (isset($config['xss_clean']))
+		{
+			$this->xss_clean = $config['xss_clean'];
+		}
 	}
-	
+
 	//-------------------------------------
 	//  Setting of System Methods
 	//-------------------------------------
-	
+
 	function set_system_methods ()
 	{
 		$this->methods = array(
@@ -113,14 +116,14 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	//-------------------------------------
 	//  Main Server Function
 	//-------------------------------------
-	
+
 	function serve()
 	{
 		$r = $this->parseRequest();
 		$payload  = '<?xml version="1.0" encoding="'.$this->xmlrpc_defencoding.'"?'.'>'."\n";
 		$payload .= $this->debug_msg;
 		$payload .= $r->prepare_response();
-		
+
 		header("Content-Type: text/xml");
 		header("Content-Length: ".strlen($payload));
 		exit($payload);
@@ -129,7 +132,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	//-------------------------------------
 	//  Add Method to Class
 	//-------------------------------------
-	
+
 	function add_to_map($methodname,$function,$sig,$doc)
 	{
 		$this->methods[$methodname] = array(
@@ -143,11 +146,11 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	//-------------------------------------
 	//  Parse Server Request
 	//-------------------------------------
-	
+
 	function parseRequest($data='')
 	{
 		global $HTTP_RAW_POST_DATA;
-		
+
 		//-------------------------------------
 		//  Get Data
 		//-------------------------------------
@@ -160,10 +163,10 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 		//-------------------------------------
 		//  Set up XML Parser
 		//-------------------------------------
-		
+
 		$parser = xml_parser_create($this->xmlrpc_defencoding);
 		$parser_object = new XML_RPC_Message("filler");
-		
+
 		$parser_object->xh[$parser]					= array();
 		$parser_object->xh[$parser]['isf']			= 0;
 		$parser_object->xh[$parser]['isf_reason']	= '';
@@ -177,12 +180,12 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 		xml_set_element_handler($parser, 'open_tag', 'closing_tag');
 		xml_set_character_data_handler($parser, 'character_data');
 		//xml_set_default_handler($parser, 'default_handler');
-		
-		
+
+
 		//-------------------------------------
 		//  PARSE + PROCESS XML DATA
-		//-------------------------------------  	
-		
+		//-------------------------------------
+
 		if ( ! xml_parse($parser, $data, 1))
 		{
 			// return XML error as a faultCode
@@ -200,69 +203,74 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 		else
 		{
 			xml_parser_free($parser);
-			
+
 			$m = new XML_RPC_Message($parser_object->xh[$parser]['method']);
 			$plist='';
-			
+
 			for($i=0; $i < count($parser_object->xh[$parser]['params']); $i++)
 			{
 				if ($this->debug === TRUE)
 				{
 					$plist .= "$i - " .  print_r(get_object_vars($parser_object->xh[$parser]['params'][$i]), TRUE). ";\n";
 				}
-				
+
 				$m->addParam($parser_object->xh[$parser]['params'][$i]);
 			}
-			
+
 			if ($this->debug === TRUE)
 			{
 				echo "<pre>";
 				echo "---PLIST---\n" . $plist . "\n---PLIST END---\n\n";
 				echo "</pre>";
 			}
-			
+
 			$r = $this->_execute($m);
 		}
-		
+
 		//-------------------------------------
 		//  SET DEBUGGING MESSAGE
-		//-------------------------------------  	
-		
+		//-------------------------------------
+
 		if ($this->debug === TRUE)
 		{
 			$this->debug_msg = "<!-- DEBUG INFO:\n\n".$plist."\n END DEBUG-->\n";
 		}
-		
+
 		return $r;
 	}
 
 	//-------------------------------------
 	//  Executes the Method
 	//-------------------------------------
-	
+
 	function _execute($m)
 	{
 		$methName = $m->method_name;
-		
+
 		// Check to see if it is a system call
 		$system_call = (strncmp($methName, 'system', 5) == 0) ? TRUE : FALSE;
-		
+
+		if ($this->xss_clean == FALSE)
+		{
+			$m->xss_clean = FALSE;
+		}
+
 		//-------------------------------------
 		//  Valid Method
 		//-------------------------------------
-		
+
 		if ( ! isset($this->methods[$methName]['function']))
 		{
 			return new XML_RPC_Response(0, $this->xmlrpcerr['unknown_method'], $this->xmlrpcstr['unknown_method']);
 		}
-		
+
 		//-------------------------------------
 		//  Check for Method (and Object)
 		//-------------------------------------
-			
+
 		$method_parts = explode(".", $this->methods[$methName]['function']);
 		$objectCall = (isset($method_parts['1']) && $method_parts['1'] != "") ? TRUE : FALSE;
-		
+
 		if ($system_call === TRUE)
 		{
 			if ( ! is_callable(array($this,$method_parts['1'])))
@@ -281,30 +289,30 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 				return new XML_RPC_Response(0, $this->xmlrpcerr['unknown_method'], $this->xmlrpcstr['unknown_method']);
 			}
 		}
-		
+
 		//-------------------------------------
 		//  Checking Methods Signature
 		//-------------------------------------
-		
+
 		if (isset($this->methods[$methName]['signature']))
 		{
 			$sig = $this->methods[$methName]['signature'];
 			for($i=0; $i<count($sig); $i++)
 			{
 				$current_sig = $sig[$i];
-		
+
 				if (count($current_sig) == count($m->params)+1)
 				{
 					for($n=0; $n < count($m->params); $n++)
 					{
 						$p = $m->params[$n];
 						$pt = ($p->kindOf() == 'scalar') ? $p->scalarval() : $p->kindOf();
-						
+
 						if ($pt != $current_sig[$n+1])
 						{
 							$pno = $n+1;
 							$wanted = $current_sig[$n+1];
-							
+
 							return new XML_RPC_Response(0,
 								$this->xmlrpcerr['incorrect_params'],
 								$this->xmlrpcstr['incorrect_params'] .
@@ -344,22 +352,22 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 			return call_user_func($this->methods[$methName]['function'], $m);
 		}
 	}
-	
-	
+
+
 	//-------------------------------------
 	//  Server Function:  List Methods
 	//-------------------------------------
-	
+
 	function listMethods($m)
 	{
 		$v = new XML_RPC_Values();
 		$output = array();
-		
+
 		foreach($this->methods as $key => $value)
 		{
 			$output[] = new XML_RPC_Values($key, 'string');
 		}
-		
+
 		foreach($this->system_methods as $key => $value)
 		{
 			$output[]= new XML_RPC_Values($key, 'string');
@@ -368,23 +376,23 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 		$v->addArray($output);
 		return new XML_RPC_Response($v);
 	}
-	
+
 	//-------------------------------------
 	//  Server Function:  Return Signature for Method
 	//-------------------------------------
-		
+
 	function methodSignature($m)
 	{
 		$parameters = $m->output_parameters();
 		$method_name = $parameters[0];
-		
+
 		if (isset($this->methods[$method_name]))
 		{
 			if ($this->methods[$method_name]['signature'])
 			{
 				$sigs = array();
 				$signature = $this->methods[$method_name]['signature'];
-				
+
 				for($i=0; $i < count($signature); $i++)
 				{
 					$cursig = array();
@@ -408,20 +416,20 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 		}
 		return $r;
 	}
-	
+
 	//-------------------------------------
 	//  Server Function:  Doc String for Method
 	//-------------------------------------
-	
+
 	function methodHelp($m)
 	{
 		$parameters = $m->output_parameters();
 		$method_name = $parameters[0];
-	
+
 		if (isset($this->methods[$method_name]))
 		{
 			$docstring = isset($this->methods[$method_name]['docstring']) ? $this->methods[$method_name]['docstring'] : '';
-			
+
 			return new XML_RPC_Response(new XML_RPC_Values($docstring, 'string'));
 		}
 		else
@@ -438,7 +446,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	{
 		// Disabled
 		return new XML_RPC_Response(0, $this->xmlrpcerr['unknown_method'], $this->xmlrpcstr['unknown_method']);
-		
+
 		$parameters = $m->output_parameters();
 		$calls = $parameters[0];
 
@@ -447,15 +455,15 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 		foreach ($calls as $value)
 		{
 			//$attempt = $this->_execute(new XML_RPC_Message($value[0], $value[1]));
-			
+
 			$m = new XML_RPC_Message($value[0]);
 			$plist='';
-			
+
 			for($i=0; $i < count($value[1]); $i++)
 			{
 				$m->addParam(new XML_RPC_Values($value[1][$i], 'string'));
 			}
-			
+
 			$attempt = $this->_execute($m);
 
 			if ($attempt->faultCode() != 0)
@@ -468,8 +476,8 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 
 		return new XML_RPC_Response(new XML_RPC_Values($result, 'array'));
 	}
-	
-	
+
+
 	//-------------------------------------
 	//  Multi-call Function:  Error Handling
 	//-------------------------------------
@@ -478,28 +486,28 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 	{
 		$str  = is_string($err) ? $this->xmlrpcstr["multicall_${err}"] : $err->faultString();
 		$code = is_string($err) ? $this->xmlrpcerr["multicall_${err}"] : $err->faultCode();
-		
+
 		$struct['faultCode'] = new XML_RPC_Values($code, 'int');
 		$struct['faultString'] = new XML_RPC_Values($str, 'string');
-	
+
 		return new XML_RPC_Values($struct, 'struct');
 	}
-	
-	
+
+
 	//-------------------------------------
 	//  Multi-call Function:  Processes method
 	//-------------------------------------
-	
+
 	function do_multicall($call)
 	{
 		if ($call->kindOf() != 'struct')
 			return $this->multicall_error('notstruct');
 		elseif ( ! $methName = $call->me['struct']['methodName'])
 			return $this->multicall_error('nomethod');
-		
+
 		list($scalar_type,$scalar_value)=each($methName->me);
 		$scalar_type = $scalar_type == $this->xmlrpcI4 ? $this->xmlrpcInt : $scalar_type;
-			
+
 		if ($methName->kindOf() != 'scalar' OR $scalar_type != 'string')
 			return $this->multicall_error('notstring');
 		elseif ($scalar_value == 'system.multicall')
@@ -508,7 +516,7 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 			return $this->multicall_error('noparams');
 		elseif ($params->kindOf() != 'array')
 			return $this->multicall_error('notarray');
-			
+
 		list($a,$b)=each($params->me);
 		$numParams = count($b);
 
@@ -526,8 +534,8 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 		}
 
 		return new XML_RPC_Values(array($result->value()), 'array');
-	}	
-	
+	}
+
 }
 // END XML_RPC_Server class
 
diff --git a/system/libraries/Zip.php b/system/libraries/Zip.php
index af50ca1cb..80633c708 100644..100755
--- a/system/libraries/Zip.php
+++ b/system/libraries/Zip.php
@@ -2,11 +2,11 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
@@ -32,15 +32,21 @@
  */
 class CI_Zip  {
 
-	var $zipdata 	= '';
-	var $directory 	= '';
-	var $entries 	= 0;
-	var $file_num 	= 0;
+	var $zipdata	= '';
+	var $directory	= '';
+	var $entries	= 0;
+	var $file_num	= 0;
 	var $offset		= 0;
+	var $now;
 
-	function CI_Zip()
+	/**
+	 * Constructor
+	 */
+	public function __construct()
 	{
 		log_message('debug', "Zip Compression Class Initialized");
+
+		$this->now = time();
 	}
 
 	// --------------------------------------------------------------------
@@ -63,25 +69,50 @@ class CI_Zip  {
 				$dir .= '/';
 			}
 
-			$this->_add_dir($dir);
+			$dir_time = $this->_get_mod_time($dir);
+
+			$this->_add_dir($dir, $dir_time['file_mtime'], $dir_time['file_mdate']);
 		}
 	}
 
 	// --------------------------------------------------------------------
 
 	/**
+	 *	Get file/directory modification time
+	 *
+	 *	If this is a newly created file/dir, we will set the time to 'now'
+	 *
+	 *	@param string	path to file
+	 *	@return array	filemtime/filemdate
+	 */
+	function _get_mod_time($dir)
+	{
+		// filemtime() will return false, but it does raise an error.
+		$date = (@filemtime($dir)) ? filemtime($dir) : getdate($this->now);
+
+		$time['file_mtime'] = ($date['hours'] << 11) + ($date['minutes'] << 5) + $date['seconds'] / 2;
+		$time['file_mdate'] = (($date['year'] - 1980) << 9) + ($date['mon'] << 5) + $date['mday'];
+
+		return $time;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
 	 * Add Directory
 	 *
 	 * @access	private
 	 * @param	string	the directory name
 	 * @return	void
 	 */
-	function _add_dir($dir)
+	function _add_dir($dir, $file_mtime, $file_mdate)
 	{
 		$dir = str_replace("\\", "/", $dir);
 
 		$this->zipdata .=
-			"\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+			"\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00"
+			.pack('v', $file_mtime)
+			.pack('v', $file_mdate)
 			.pack('V', 0) // crc32
 			.pack('V', 0) // compressed filesize
 			.pack('V', 0) // uncompressed filesize
@@ -94,7 +125,9 @@ class CI_Zip  {
 			.pack('V', 0); // uncompressed filesize
 
 		$this->directory .=
-			"\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+			"\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00"
+			.pack('v', $file_mtime)
+			.pack('v', $file_mdate)
 			.pack('V',0) // crc32
 			.pack('V',0) // compressed filesize
 			.pack('V',0) // uncompressed filesize
@@ -110,7 +143,7 @@ class CI_Zip  {
 		$this->offset = strlen($this->zipdata);
 		$this->entries++;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -124,19 +157,23 @@ class CI_Zip  {
 	 * @param	mixed
 	 * @param	string
 	 * @return	void
-	 */	
+	 */
 	function add_data($filepath, $data = NULL)
 	{
 		if (is_array($filepath))
 		{
 			foreach ($filepath as $path => $data)
 			{
-				$this->_add_data($path, $data);
+				$file_data = $this->_get_mod_time($path);
+
+				$this->_add_data($path, $data, $file_data['file_mtime'], $file_data['file_mdate']);
 			}
 		}
 		else
 		{
-			$this->_add_data($filepath, $data);
+			$file_data = $this->_get_mod_time($filepath);
+
+			$this->_add_data($filepath, $data, $file_data['file_mtime'], $file_data['file_mdate']);
 		}
 	}
 
@@ -149,8 +186,8 @@ class CI_Zip  {
 	 * @param	string	the file name/path
 	 * @param	string	the data to be encoded
 	 * @return	void
-	 */	
-	function _add_data($filepath, $data)
+	 */
+	function _add_data($filepath, $data, $file_mtime, $file_mdate)
 	{
 		$filepath = str_replace("\\", "/", $filepath);
 
@@ -162,7 +199,9 @@ class CI_Zip  {
 		$compressed_size = strlen($gzdata);
 
 		$this->zipdata .=
-			"\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00"
+			"\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00"
+			.pack('v', $file_mtime)
+			.pack('v', $file_mdate)
 			.pack('V', $crc32)
 			.pack('V', $compressed_size)
 			.pack('V', $uncompressed_size)
@@ -172,7 +211,9 @@ class CI_Zip  {
 			.$gzdata; // "file data" segment
 
 		$this->directory .=
-			"\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00\x00\x00\x00\x00"
+			"\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00"
+			.pack('v', $file_mtime)
+			.pack('v', $file_mdate)
 			.pack('V', $crc32)
 			.pack('V', $compressed_size)
 			.pack('V', $uncompressed_size)
@@ -189,7 +230,7 @@ class CI_Zip  {
 		$this->entries++;
 		$this->file_num++;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -197,7 +238,7 @@ class CI_Zip  {
 	 *
 	 * @access	public
 	 * @return	bool
-	 */	
+	 */
 	function read_file($path, $preserve_filepath = FALSE)
 	{
 		if ( ! file_exists($path))
@@ -208,7 +249,7 @@ class CI_Zip  {
 		if (FALSE !== ($data = file_get_contents($path)))
 		{
 			$name = str_replace("\\", "/", $path);
-			
+
 			if ($preserve_filepath === FALSE)
 			{
 				$name = preg_replace("|.*/(.+)|", "\\1", $name);
@@ -221,7 +262,7 @@ class CI_Zip  {
 	}
 
 	// ------------------------------------------------------------------------
-	
+
 	/**
 	 * Read a directory and add it to the zip.
 	 *
@@ -232,27 +273,48 @@ class CI_Zip  {
 	 * @access	public
 	 * @param	string	path to source
 	 * @return	bool
-	 */	
-	function read_dir($path)
-	{	
-		if ($fp = @opendir($path))
+	 */
+	function read_dir($path, $preserve_filepath = TRUE, $root_path = NULL)
+	{
+		if ( ! $fp = @opendir($path))
 		{
-			while (FALSE !== ($file = readdir($fp)))
+			return FALSE;
+		}
+
+		// Set the original directory root for child dir's to use as relative
+		if ($root_path === NULL)
+		{
+			$root_path = dirname($path).'/';
+		}
+
+		while (FALSE !== ($file = readdir($fp)))
+		{
+			if(substr($file, 0, 1) == '.')
 			{
-				if (@is_dir($path.$file) && substr($file, 0, 1) != '.')
-				{					
-					$this->read_dir($path.$file."/");
-				}
-				elseif (substr($file, 0, 1) != ".")
+				continue;
+			}
+
+			if (@is_dir($path.$file))
+			{
+				$this->read_dir($path.$file."/", $preserve_filepath, $root_path);
+			}
+			else
+			{
+				if (FALSE !== ($data = file_get_contents($path.$file)))
 				{
-					if (FALSE !== ($data = file_get_contents($path.$file)))
-					{						
-						$this->add_data(str_replace("\\", "/", $path).$file, $data);
+					$name = str_replace("\\", "/", $path);
+
+					if ($preserve_filepath === FALSE)
+					{
+						$name = str_replace($root_path, '', $name);
 					}
+
+					$this->add_data($name.$file, $data);
 				}
 			}
-			return TRUE;
 		}
+
+		return TRUE;
 	}
 
 	// --------------------------------------------------------------------
@@ -262,7 +324,7 @@ class CI_Zip  {
 	 *
 	 * @access	public
 	 * @return	binary string
-	 */	
+	 */
 	function get_zip()
 	{
 		// Is there any data to return?
@@ -281,7 +343,7 @@ class CI_Zip  {
 
 		return $zip_data;
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -292,7 +354,7 @@ class CI_Zip  {
 	 * @access	public
 	 * @param	string	the file name
 	 * @return	bool
-	 */	
+	 */
 	function archive($filepath)
 	{
 		if ( ! ($fp = @fopen($filepath, FOPEN_WRITE_CREATE_DESTRUCTIVE)))
@@ -300,12 +362,12 @@ class CI_Zip  {
 			return FALSE;
 		}
 
-		flock($fp, LOCK_EX);	
+		flock($fp, LOCK_EX);
 		fwrite($fp, $this->get_zip());
 		flock($fp, LOCK_UN);
 		fclose($fp);
 
-		return TRUE;	
+		return TRUE;
 	}
 
 	// --------------------------------------------------------------------
@@ -325,11 +387,13 @@ class CI_Zip  {
 			$filename .= '.zip';
 		}
 
-		$zip_content =& $this->get_zip();
-
 		$CI =& get_instance();
 		$CI->load->helper('download');
 
+		$get_zip = $this->get_zip();
+
+		$zip_content =& $get_zip;
+
 		force_download($filename, $zip_content);
 	}
 
@@ -343,7 +407,7 @@ class CI_Zip  {
 	 *
 	 * @access	public
 	 * @return	void
-	 */		
+	 */
 	function clear_data()
 	{
 		$this->zipdata		= '';
@@ -352,7 +416,7 @@ class CI_Zip  {
 		$this->file_num		= 0;
 		$this->offset		= 0;
 	}
-	
+
 }
 
 /* End of file Zip.php */
diff --git a/system/libraries/index.html b/system/libraries/index.html
index c942a79ce..c942a79ce 100644..100755
--- a/system/libraries/index.html
+++ b/system/libraries/index.html
diff --git a/system/libraries/javascript/Jquery.php b/system/libraries/javascript/Jquery.php
new file mode 100755
index 000000000..baab83d25
--- /dev/null
+++ b/system/libraries/javascript/Jquery.php
@@ -0,0 +1,1071 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
+ * @license		http://www.codeigniter.com/user_guide/license.html
+ * @link		http://www.codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+/**
+ * Jquery Class
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @author		ExpressionEngine Dev Team
+ * @category	Loader
+ * @link		http://www.codeigniter.com/user_guide/libraries/javascript.html
+ */
+ 
+class CI_Jquery extends CI_Javascript {
+
+	var $_javascript_folder = 'js';
+	var $jquery_code_for_load = array();
+	var $jquery_code_for_compile = array();
+	var $jquery_corner_active = FALSE;
+	var $jquery_table_sorter_active = FALSE;
+	var $jquery_table_sorter_pager_active = FALSE;
+	var $jquery_ajax_img = '';
+
+	public function __construct($params)
+	{
+		$this->CI =& get_instance();	
+		extract($params);
+
+		if ($autoload === TRUE)
+		{
+			$this->script();			
+		}
+		
+		log_message('debug', "Jquery Class Initialized");
+	}
+	
+	// --------------------------------------------------------------------	 
+	// Event Code
+	// --------------------------------------------------------------------	
+
+	/**
+	 * Blur
+	 *
+	 * Outputs a jQuery blur event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _blur($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'blur');
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Change
+	 *
+	 * Outputs a jQuery change event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _change($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'change');
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Click
+	 *
+	 * Outputs a jQuery click event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @param	boolean	whether or not to return false
+	 * @return	string
+	 */
+	function _click($element = 'this', $js = '', $ret_false = TRUE)
+	{
+		if ( ! is_array($js))
+		{
+			$js = array($js);
+		}
+
+		if ($ret_false)
+		{
+			$js[] = "return false;";
+		}
+
+		return $this->_add_event($element, $js, 'click');
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Double Click
+	 *
+	 * Outputs a jQuery dblclick event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _dblclick($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'dblclick');
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Error
+	 *
+	 * Outputs a jQuery error event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _error($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'error');
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Focus
+	 *
+	 * Outputs a jQuery focus event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _focus($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'focus');
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Hover
+	 *
+	 * Outputs a jQuery hover event
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @param	string	- Javascript code for mouse over
+	 * @param	string	- Javascript code for mouse out
+	 * @return	string
+	 */
+	function _hover($element = 'this', $over, $out)
+	{
+		$event = "\n\t$(" . $this->_prep_element($element) . ").hover(\n\t\tfunction()\n\t\t{\n\t\t\t{$over}\n\t\t}, \n\t\tfunction()\n\t\t{\n\t\t\t{$out}\n\t\t});\n";
+
+		$this->jquery_code_for_compile[] = $event;
+
+		return $event;
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Keydown
+	 *
+	 * Outputs a jQuery keydown event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _keydown($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'keydown');
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Keyup
+	 *
+	 * Outputs a jQuery keydown event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _keyup($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'keyup');
+	}	
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Load
+	 *
+	 * Outputs a jQuery load event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _load($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'load');
+	}	
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Mousedown
+	 *
+	 * Outputs a jQuery mousedown event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _mousedown($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'mousedown');
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Mouse Out
+	 *
+	 * Outputs a jQuery mouseout event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _mouseout($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'mouseout');
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Mouse Over
+	 *
+	 * Outputs a jQuery mouseover event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _mouseover($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'mouseover');
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Mouseup
+	 *
+	 * Outputs a jQuery mouseup event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _mouseup($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'mouseup');
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Output
+	 *
+	 * Outputs script directly
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _output($array_js = '')
+	{
+		if ( ! is_array($array_js))
+		{
+			$array_js = array($array_js);
+		}
+		
+		foreach ($array_js as $js)
+		{
+			$this->jquery_code_for_compile[] = "\t$js\n";
+		}
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Resize
+	 *
+	 * Outputs a jQuery resize event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _resize($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'resize');
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Scroll
+	 *
+	 * Outputs a jQuery scroll event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _scroll($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'scroll');
+	}
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Unload
+	 *
+	 * Outputs a jQuery unload event
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @return	string
+	 */
+	function _unload($element = 'this', $js = '')
+	{
+		return $this->_add_event($element, $js, 'unload');
+	}
+
+	// --------------------------------------------------------------------	 
+	// Effects
+	// --------------------------------------------------------------------	
+	
+	/**
+	 * Add Class
+	 *
+	 * Outputs a jQuery addClass event
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @return	string
+	 */
+	function _addClass($element = 'this', $class='')
+	{
+		$element = $this->_prep_element($element);
+		$str  = "$({$element}).addClass(\"$class\");";
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Animate
+	 *
+	 * Outputs a jQuery animate event
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function _animate($element = 'this', $params = array(), $speed = '', $extra = '')
+	{
+		$element = $this->_prep_element($element);
+		$speed = $this->_validate_speed($speed);
+		
+		$animations = "\t\t\t";
+		
+		foreach ($params as $param=>$value)
+		{
+			$animations .= $param.': \''.$value.'\', ';
+		}
+
+		$animations = substr($animations, 0, -2); // remove the last ", "
+
+		if ($speed != '')
+		{
+			$speed = ', '.$speed;
+		}
+		
+		if ($extra != '')
+		{
+			$extra = ', '.$extra;
+		}
+		
+		$str  = "$({$element}).animate({\n$animations\n\t\t}".$speed.$extra.");";
+		
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+		
+	/**
+	 * Fade In
+	 *
+	 * Outputs a jQuery hide event
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function _fadeIn($element = 'this', $speed = '', $callback = '')
+	{
+		$element = $this->_prep_element($element);	
+		$speed = $this->_validate_speed($speed);
+		
+		if ($callback != '')
+		{
+			$callback = ", function(){\n{$callback}\n}";
+		}
+		
+		$str  = "$({$element}).fadeIn({$speed}{$callback});";
+		
+		return $str;
+	}
+		
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Fade Out
+	 *
+	 * Outputs a jQuery hide event
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function _fadeOut($element = 'this', $speed = '', $callback = '')
+	{
+		$element = $this->_prep_element($element);
+		$speed = $this->_validate_speed($speed);
+		
+		if ($callback != '')
+		{
+			$callback = ", function(){\n{$callback}\n}";
+		}
+		
+		$str  = "$({$element}).fadeOut({$speed}{$callback});";
+		
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Hide
+	 *
+	 * Outputs a jQuery hide action
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function _hide($element = 'this', $speed = '', $callback = '')
+	{
+		$element = $this->_prep_element($element);	
+		$speed = $this->_validate_speed($speed);
+		
+		if ($callback != '')
+		{
+			$callback = ", function(){\n{$callback}\n}";
+		}
+		
+		$str  = "$({$element}).hide({$speed}{$callback});";
+
+		return $str;
+	}
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Remove Class
+	 *
+	 * Outputs a jQuery remove class event
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @return	string
+	 */
+	function _removeClass($element = 'this', $class='')
+	{
+		$element = $this->_prep_element($element);
+		$str  = "$({$element}).removeClass(\"$class\");";
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+			
+	/**
+	 * Slide Up
+	 *
+	 * Outputs a jQuery slideUp event
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function _slideUp($element = 'this', $speed = '', $callback = '')
+	{
+		$element = $this->_prep_element($element);	
+		$speed = $this->_validate_speed($speed);
+		
+		if ($callback != '')
+		{
+			$callback = ", function(){\n{$callback}\n}";
+		}
+		
+		$str  = "$({$element}).slideUp({$speed}{$callback});";
+		
+		return $str;
+	}
+		
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Slide Down
+	 *
+	 * Outputs a jQuery slideDown event
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function _slideDown($element = 'this', $speed = '', $callback = '')
+	{
+		$element = $this->_prep_element($element);
+		$speed = $this->_validate_speed($speed);
+		
+		if ($callback != '')
+		{
+			$callback = ", function(){\n{$callback}\n}";
+		}
+		
+		$str  = "$({$element}).slideDown({$speed}{$callback});";
+		
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Slide Toggle
+	 *
+	 * Outputs a jQuery slideToggle event
+	 *
+	 * @access	public
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function _slideToggle($element = 'this', $speed = '', $callback = '')
+	{
+		$element = $this->_prep_element($element);
+		$speed = $this->_validate_speed($speed);
+		
+		if ($callback != '')
+		{
+			$callback = ", function(){\n{$callback}\n}";
+		}
+		
+		$str  = "$({$element}).slideToggle({$speed}{$callback});";
+		
+		return $str;
+	}
+		
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Toggle
+	 *
+	 * Outputs a jQuery toggle event
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @return	string
+	 */
+	function _toggle($element = 'this')
+	{
+		$element = $this->_prep_element($element);
+		$str  = "$({$element}).toggle();";
+		return $str;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Toggle Class
+	 *
+	 * Outputs a jQuery toggle class event
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @return	string
+	 */
+	function _toggleClass($element = 'this', $class='')
+	{
+		$element = $this->_prep_element($element);
+		$str  = "$({$element}).toggleClass(\"$class\");";
+		return $str;
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Show
+	 *
+	 * Outputs a jQuery show event
+	 *
+	 * @access	private
+	 * @param	string	- element
+	 * @param	string	- One of 'slow', 'normal', 'fast', or time in milliseconds
+	 * @param	string	- Javascript callback function
+	 * @return	string
+	 */
+	function _show($element = 'this', $speed = '', $callback = '')
+	{
+		$element = $this->_prep_element($element);	
+		$speed = $this->_validate_speed($speed);
+		
+		if ($callback != '')
+		{
+			$callback = ", function(){\n{$callback}\n}";
+		}
+		
+		$str  = "$({$element}).show({$speed}{$callback});";
+		
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Updater
+	 *
+	 * An Ajax call that populates the designated DOM node with 
+	 * returned content
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	the controller to run the call against
+	 * @param	string	optional parameters
+	 * @return	string
+	 */
+	
+	function _updater($container = 'this', $controller, $options = '')
+	{	
+		$container = $this->_prep_element($container);
+		
+		$controller = (strpos('://', $controller) === FALSE) ? $controller : $this->CI->config->site_url($controller);
+		
+		// ajaxStart and ajaxStop are better choices here... but this is a stop gap
+		if ($this->CI->config->item('javascript_ajax_img') == '')
+		{
+			$loading_notifier = "Loading...";
+		}
+		else
+		{
+			$loading_notifier = '<img src=\'' . $this->CI->config->slash_item('base_url') . $this->CI->config->item('javascript_ajax_img') . '\' alt=\'Loading\' />';
+		}
+		
+		$updater = "$($container).empty();\n"; // anything that was in... get it out
+		$updater .= "\t\t$($container).prepend(\"$loading_notifier\");\n"; // to replace with an image
+
+		$request_options = '';
+		if ($options != '')
+		{
+			$request_options .= ", {";
+			$request_options .= (is_array($options)) ? "'".implode("', '", $options)."'" : "'".str_replace(":", "':'", $options)."'";
+			$request_options .= "}";
+		}
+
+		$updater .= "\t\t$($container).load('$controller'$request_options);";
+		return $updater;
+	}
+
+
+	// --------------------------------------------------------------------
+	// Pre-written handy stuff
+	// --------------------------------------------------------------------
+	 
+	/**
+	 * Zebra tables
+	 *
+	 * @access	private
+	 * @param	string	table name
+	 * @param	string	plugin location
+	 * @return	string
+	 */
+	function _zebraTables($class = '', $odd = 'odd', $hover = '')
+	{
+		$class = ($class != '') ? '.'.$class : '';
+		
+		$zebra  = "\t\$(\"table{$class} tbody tr:nth-child(even)\").addClass(\"{$odd}\");";
+
+		$this->jquery_code_for_compile[] = $zebra;
+
+		if ($hover != '')
+		{
+			$hover = $this->hover("table{$class} tbody tr", "$(this).addClass('hover');", "$(this).removeClass('hover');");
+		}
+
+		return $zebra;
+	}
+
+
+
+	// --------------------------------------------------------------------
+	// Plugins
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Corner Plugin
+	 *
+	 * http://www.malsup.com/jquery/corner/
+	 *
+	 * @access	public
+	 * @param	string	target
+	 * @return	string
+	 */
+	function corner($element = '', $corner_style = '')
+	{
+		// may want to make this configurable down the road
+		$corner_location = '/plugins/jquery.corner.js';
+
+		if ($corner_style != '')
+		{
+			$corner_style = '"'.$corner_style.'"';
+		}
+
+		return "$(" . $this->_prep_element($element) . ").corner(".$corner_style.");";
+	}
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * modal window
+	 *
+	 * Load a thickbox modal window
+	 *
+	 * @access	public
+	 * @return	void
+	 */
+	function modal($src, $relative = FALSE)
+	{	
+		$this->jquery_code_for_load[] = $this->external($src, $relative);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Effect
+	 *
+	 * Load an Effect library
+	 *
+	 * @access	public
+	 * @return	void
+	 */
+	function effect($src, $relative = FALSE)
+	{
+		$this->jquery_code_for_load[] = $this->external($src, $relative);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Plugin
+	 *
+	 * Load a plugin library
+	 *
+	 * @access	public
+	 * @return	void
+	 */
+	function plugin($src, $relative = FALSE)
+	{
+		$this->jquery_code_for_load[] = $this->external($src, $relative);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * UI
+	 *
+	 * Load a user interface library
+	 *
+	 * @access	public
+	 * @return	void
+	 */
+	function ui($src, $relative = FALSE)
+	{
+		$this->jquery_code_for_load[] = $this->external($src, $relative);
+	}
+	// --------------------------------------------------------------------
+
+	/**
+	 * Sortable
+	 *
+	 * Creates a jQuery sortable
+	 *
+	 * @access	public
+	 * @return	void
+	 */
+	function sortable($element, $options = array())
+	{
+
+		if (count($options) > 0)
+		{
+			$sort_options = array();
+			foreach ($options as $k=>$v)
+			{
+				$sort_options[] = "\n\t\t".$k.': '.$v."";
+			}
+			$sort_options = implode(",", $sort_options);
+		}
+		else
+		{
+			$sort_options = '';
+		}
+
+		return "$(" . $this->_prep_element($element) . ").sortable({".$sort_options."\n\t});";
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Table Sorter Plugin
+	 *
+	 * @access	public
+	 * @param	string	table name
+	 * @param	string	plugin location
+	 * @return	string
+	 */
+	function tablesorter($table = '', $options = '')
+	{
+		$this->jquery_code_for_compile[] = "\t$(" . $this->_prep_element($table) . ").tablesorter($options);\n";
+	}
+	
+	// --------------------------------------------------------------------
+	// Class functions
+	// --------------------------------------------------------------------
+
+	/**
+	 * Add Event
+	 *
+	 * Constructs the syntax for an event, and adds to into the array for compilation
+	 *
+	 * @access	private
+	 * @param	string	The element to attach the event to
+	 * @param	string	The code to execute
+	 * @param	string	The event to pass
+	 * @return	string
+	 */	
+	function _add_event($element, $js, $event)
+	{
+		if (is_array($js))
+		{
+			$js = implode("\n\t\t", $js);
+
+		}
+
+		$event = "\n\t$(" . $this->_prep_element($element) . ").{$event}(function(){\n\t\t{$js}\n\t});\n";
+		$this->jquery_code_for_compile[] = $event;
+		return $event;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Compile
+	 *
+	 * As events are specified, they are stored in an array
+	 * This funciton compiles them all for output on a page
+	 *
+	 * @access	private
+	 * @return	string
+	 */
+	function _compile($view_var = 'script_foot', $script_tags = TRUE)
+	{
+		// External references
+		$external_scripts = implode('', $this->jquery_code_for_load);
+		$this->CI->load->vars(array('library_src' => $external_scripts));
+
+		if (count($this->jquery_code_for_compile) == 0 )
+		{
+			// no inline references, let's just return
+			return;
+		}
+
+		// Inline references
+		$script = '$(document).ready(function() {' . "\n";
+		$script .= implode('', $this->jquery_code_for_compile);
+		$script .= '});';
+		
+		$output = ($script_tags === FALSE) ? $script : $this->inline($script);
+
+		$this->CI->load->vars(array($view_var => $output));
+
+	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Clear Compile
+	 *
+	 * Clears the array of script events collected for output
+	 *
+	 * @access	public
+	 * @return	void
+	 */
+	function _clear_compile()
+	{
+		$this->jquery_code_for_compile = array();
+	}
+
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Document Ready
+	 *
+	 * A wrapper for writing document.ready()
+	 *
+	 * @access	private
+	 * @return	string
+	 */
+	function _document_ready($js)
+	{
+		if ( ! is_array($js))
+		{
+			$js = array ($js);
+
+		}
+		
+		foreach ($js as $script)
+		{
+			$this->jquery_code_for_compile[] = $script;
+		}
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Script Tag
+	 *
+	 * Outputs the script tag that loads the jquery.js file into an HTML document
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	string
+	 */
+	function script($library_src = '', $relative = FALSE)
+	{
+		$library_src = $this->external($library_src, $relative);
+		$this->jquery_code_for_load[] = $library_src;
+		return $library_src;
+	}
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Prep Element
+	 *
+	 * Puts HTML element in quotes for use in jQuery code
+	 * unless the supplied element is the Javascript 'this'
+	 * object, in which case no quotes are added
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	string
+	 */
+	function _prep_element($element)
+	{
+		if ($element != 'this')
+		{
+			$element = '"'.$element.'"';
+		}
+		
+		return $element;
+	}
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Validate Speed
+	 *
+	 * Ensures the speed parameter is valid for jQuery
+	 *
+	 * @access	private
+	 * @param	string
+	 * @return	string
+	 */	
+	function _validate_speed($speed)
+	{
+		if (in_array($speed, array('slow', 'normal', 'fast')))
+		{
+			$speed = '"'.$speed.'"';
+		}
+		elseif (preg_match("/[^0-9]/", $speed))
+		{
+			$speed = '';
+		}
+	
+		return $speed;
+	}
+
+}
+
+/* End of file Jquery.php */
+/* Location: ./system/libraries/Jquery.php */
\ No newline at end of file
diff --git a/system/plugins/captcha_pi.php b/system/plugins/captcha_pi.php
deleted file mode 100644
index 77f29f8b9..000000000
--- a/system/plugins/captcha_pi.php
+++ /dev/null
@@ -1,356 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/*
-Instructions:
-
-Load the plugin using:
-
- 	$this->load->plugin('captcha');
-
-Once loaded you can generate a captcha like this:
-	
-	$vals = array(
-					'word'		 => 'Random word',
-					'img_path'	 => './captcha/',
-					'img_url'	 => 'http://example.com/captcha/',
-					'font_path'	 => './system/fonts/texb.ttf',
-					'img_width'	 => '150',
-					'img_height' => 30,
-					'expiration' => 7200
-				);
-	
-	$cap = create_captcha($vals);
-	echo $cap['image'];
-	
-
-NOTES:
-	
-	The captcha function requires the GD image library.
-	
-	Only the img_path and img_url are required.
-	
-	If a "word" is not supplied, the function will generate a random
-	ASCII string.  You might put together your own word library that
-	you can draw randomly from.
-	
-	If you do not specify a path to a TRUE TYPE font, the native ugly GD
-	font will be used.
-	
-	The "captcha" folder must be writable (666, or 777)
-	
-	The "expiration" (in seconds) signifies how long an image will
-	remain in the captcha folder before it will be deleted.  The default
-	is two hours.
-
-RETURNED DATA
-
-The create_captcha() function returns an associative array with this data:
-
-  [array]
-  (
-	'image' => IMAGE TAG
-	'time'	=> TIMESTAMP (in microtime)
-	'word'	=> CAPTCHA WORD
-  )
-
-The "image" is the actual image tag:
-<img src="http://example.com/captcha/12345.jpg" width="140" height="50" />
-
-The "time" is the micro timestamp used as the image name without the file
-extension.  It will be a number like this:  1139612155.3422
-
-The "word" is the word that appears in the captcha image, which if not
-supplied to the function, will be a random string.
-
-
-ADDING A DATABASE
-
-In order for the captcha function to prevent someone from posting, you will need
-to add the information returned from create_captcha() function to your database.
-Then, when the data from the form is submitted by the user you will need to verify
-that the data exists in the database and has not expired.
-
-Here is a table prototype:
-
-	CREATE TABLE captcha (
-	 captcha_id bigint(13) unsigned NOT NULL auto_increment,
-	 captcha_time int(10) unsigned NOT NULL,
-	 ip_address varchar(16) default '0' NOT NULL,
-	 word varchar(20) NOT NULL,
-	 PRIMARY KEY `captcha_id` (`captcha_id`),
-	 KEY `word` (`word`)
-	)
-
-
-Here is an example of usage with a DB.
-
-On the page where the captcha will be shown you'll have something like this:
-
-	$this->load->plugin('captcha');
-	$vals = array(
-					'img_path'	 => './captcha/',
-					'img_url'	 => 'http://example.com/captcha/'
-				);
-	
-	$cap = create_captcha($vals);
-
-	$data = array(
-					'captcha_id'	=> '',
-					'captcha_time'	=> $cap['time'],
-					'ip_address'	=> $this->input->ip_address(),
-					'word'			=> $cap['word']
-				);
-
-	$query = $this->db->insert_string('captcha', $data);
-	$this->db->query($query);
-		
-	echo 'Submit the word you see below:';
-	echo $cap['image'];
-	echo '<input type="text" name="captcha" value="" />';
-
-
-Then, on the page that accepts the submission you'll have something like this:
-
-	// First, delete old captchas
-	$expiration = time()-7200; // Two hour limit
-	$DB->query("DELETE FROM captcha WHERE captcha_time < ".$expiration);		
-
-	// Then see if a captcha exists:
-	$sql = "SELECT COUNT(*) AS count FROM captcha WHERE word = ? AND ip_address = ? AND date > ?";
-	$binds = array($_POST['captcha'], $this->input->ip_address(), $expiration);
-	$query = $this->db->query($sql, $binds);
-	$row = $query->row();
-
-	if ($row->count == 0)
-	{
-		echo "You must submit the word that appears in the image";
-	}
-
-*/
-
-
-	
-/**
-|==========================================================
-| Create Captcha
-|==========================================================
-|
-*/
-function create_captcha($data = '', $img_path = '', $img_url = '', $font_path = '')
-{		
-	$defaults = array('word' => '', 'img_path' => '', 'img_url' => '', 'img_width' => '150', 'img_height' => '30', 'font_path' => '', 'expiration' => 7200);		
-	
-	foreach ($defaults as $key => $val)
-	{
-		if ( ! is_array($data))
-		{
-			if ( ! isset($$key) OR $$key == '')
-			{
-				$$key = $val;
-			}
-		}
-		else
-		{			
-			$$key = ( ! isset($data[$key])) ? $val : $data[$key];
-		}
-	}
-	
-	if ($img_path == '' OR $img_url == '')
-	{
-		return FALSE;
-	}
-
-	if ( ! @is_dir($img_path))
-	{
-		return FALSE;
-	}
-	
-	if ( ! is_really_writable($img_path))
-	{
-		return FALSE;
-	}
-			
-	if ( ! extension_loaded('gd'))
-	{
-		return FALSE;
-	}		
-	
-	// -----------------------------------
-	// Remove old images	
-	// -----------------------------------
-			
-	list($usec, $sec) = explode(" ", microtime());
-	$now = ((float)$usec + (float)$sec);
-			
-	$current_dir = @opendir($img_path);
-	
-	while($filename = @readdir($current_dir))
-	{
-		if ($filename != "." and $filename != ".." and $filename != "index.html")
-		{
-			$name = str_replace(".jpg", "", $filename);
-		
-			if (($name + $expiration) < $now)
-			{
-				@unlink($img_path.$filename);
-			}
-		}
-	}
-	
-	@closedir($current_dir);
-
-	// -----------------------------------
-	// Do we have a "word" yet?
-	// -----------------------------------
-	
-   if ($word == '')
-   {
-		$pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
-
-		$str = '';
-		for ($i = 0; $i < 8; $i++)
-		{
-			$str .= substr($pool, mt_rand(0, strlen($pool) -1), 1);
-		}
-		
-		$word = $str;
-   }
-	
-	// -----------------------------------
-	// Determine angle and position	
-	// -----------------------------------
-	
-	$length	= strlen($word);
-	$angle	= ($length >= 6) ? rand(-($length-6), ($length-6)) : 0;
-	$x_axis	= rand(6, (360/$length)-16);			
-	$y_axis = ($angle >= 0 ) ? rand($img_height, $img_width) : rand(6, $img_height);
-	
-	// -----------------------------------
-	// Create image
-	// -----------------------------------
-			
-	// PHP.net recommends imagecreatetruecolor(), but it isn't always available
-	if (function_exists('imagecreatetruecolor'))
-	{
-		$im = imagecreatetruecolor($img_width, $img_height);
-	}
-	else
-	{
-		$im = imagecreate($img_width, $img_height);
-	}
-			
-	// -----------------------------------
-	//  Assign colors
-	// -----------------------------------
-	
-	$bg_color		= imagecolorallocate ($im, 255, 255, 255);
-	$border_color	= imagecolorallocate ($im, 153, 102, 102);
-	$text_color		= imagecolorallocate ($im, 204, 153, 153);
-	$grid_color		= imagecolorallocate($im, 255, 182, 182);
-	$shadow_color	= imagecolorallocate($im, 255, 240, 240);
-
-	// -----------------------------------
-	//  Create the rectangle
-	// -----------------------------------
-	
-	ImageFilledRectangle($im, 0, 0, $img_width, $img_height, $bg_color);
-	
-	// -----------------------------------
-	//  Create the spiral pattern
-	// -----------------------------------
-	
-	$theta		= 1;
-	$thetac		= 7;
-	$radius		= 16;
-	$circles	= 20;
-	$points		= 32;
-
-	for ($i = 0; $i < ($circles * $points) - 1; $i++)
-	{
-		$theta = $theta + $thetac;
-		$rad = $radius * ($i / $points );
-		$x = ($rad * cos($theta)) + $x_axis;
-		$y = ($rad * sin($theta)) + $y_axis;
-		$theta = $theta + $thetac;
-		$rad1 = $radius * (($i + 1) / $points);
-		$x1 = ($rad1 * cos($theta)) + $x_axis;
-		$y1 = ($rad1 * sin($theta )) + $y_axis;
-		imageline($im, $x, $y, $x1, $y1, $grid_color);
-		$theta = $theta - $thetac;
-	}
-
-	// -----------------------------------
-	//  Write the text
-	// -----------------------------------
-	
-	$use_font = ($font_path != '' AND file_exists($font_path) AND function_exists('imagettftext')) ? TRUE : FALSE;
-		
-	if ($use_font == FALSE)
-	{
-		$font_size = 5;
-		$x = rand(0, $img_width/($length/3));
-		$y = 0;
-	}
-	else
-	{
-		$font_size	= 16;
-		$x = rand(0, $img_width/($length/1.5));
-		$y = $font_size+2;
-	}
-
-	for ($i = 0; $i < strlen($word); $i++)
-	{
-		if ($use_font == FALSE)
-		{
-			$y = rand(0 , $img_height/2);
-			imagestring($im, $font_size, $x, $y, substr($word, $i, 1), $text_color);
-			$x += ($font_size*2);
-		}
-		else
-		{		
-			$y = rand($img_height/2, $img_height-3);
-			imagettftext($im, $font_size, $angle, $x, $y, $text_color, $font_path, substr($word, $i, 1));
-			$x += $font_size;
-		}
-	}
-	
-
-	// -----------------------------------
-	//  Create the border
-	// -----------------------------------
-
-	imagerectangle($im, 0, 0, $img_width-1, $img_height-1, $border_color);		
-
-	// -----------------------------------
-	//  Generate the image
-	// -----------------------------------
-	
-	$img_name = $now.'.jpg';
-
-	ImageJPEG($im, $img_path.$img_name);
-	
-	$img = "<img src=\"$img_url$img_name\" width=\"$img_width\" height=\"$img_height\" style=\"border:0;\" alt=\" \" />";
-	
-	ImageDestroy($im);
-		
-	return array('word' => $word, 'time' => $now, 'image' => $img);
-}
-
-
-/* End of file captcha_pi.php */
-/* Location: ./system/plugins/captcha_pi.php */
\ No newline at end of file
diff --git a/system/plugins/js_calendar_pi.php b/system/plugins/js_calendar_pi.php
deleted file mode 100644
index 3c304fd17..000000000
--- a/system/plugins/js_calendar_pi.php
+++ /dev/null
@@ -1,629 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/*
-Instructions:
-
-Load the plugin using:
-
- 	$this->load->plugin('js_calendar');
-
-Once loaded you'll add the calendar script to the <head> of your page like this:
-
-<?php echo js_calendar_script('my_form');  ?>
-
-The above function will be passed the name of your form.
-
-Then to show the actual calendar you'll do this:
-
-<?php echo js_calendar_write('entry_date', time(), true);?>
-<form name="my_form">
-<input type="text" name="entry_date" value="" onblur="update_calendar(this.name, this.value);" />
-<p><a href="javascript:void(0);" onClick="set_to_time('entry_date', '<?php echo time();?>')" >Today</a></p>
-</form>
-
-
-Note:  The first parameter is the name of the field containing your date, the second parameter contains the "now" time,
-and the third tells the calendar whether to highlight the current day or not.
-
-Lastly, you'll need some CSS for your calendar:
-
-.calendar {
-	border: 1px #6975A3 solid;
-	background-color: transparent;
-}
-.calheading {
-	background-color: #7C8BC0;
-	color: #fff;
-	font-family: Lucida Grande, Verdana, Geneva, Sans-serif;
-	font-size: 11px;
-	font-weight: bold;
-	text-align: center;
-}
-.calnavleft {
-	background-color: #7C8BC0;
-	font-family: Lucida Grande, Verdana, Geneva, Sans-serif;
-	font-size: 10px;
-	font-weight: bold;
-	color: #fff;
-	padding: 4px;
-	cursor: pointer;
-}
-.calnavright {
-	background-color: #7C8BC0;
-	font-family: Lucida Grande, Verdana, Geneva, Sans-serif;
-	font-size: 10px;
-	font-weight: bold;
-	color: #fff;
-	text-align:  right;
-	padding: 4px;
-	cursor: pointer;
-}
-.caldayheading {
-	background-color: #000;
-	color: #fff;
-	font-family: Lucida Grande, Verdana, Geneva, Sans-serif;
-	font-size: 10px;
-	text-align: center;
-	padding: 6px 2px 6px 2px;
-}
-.caldaycells{
-	color: #000;
-	background-color: #D1D7E6;
-	font-family: Lucida Grande, Verdana, Geneva, Sans-serif;
-	font-size: 11px;
-	text-align: center;
-	padding: 4px;
-	border: 1px #E0E5F1 solid;
-	cursor: pointer;
-}
-.caldaycellhover{
-	color: #fff;
-	background-color: #B3BCD4;
-	font-family: Lucida Grande, Verdana, Geneva, Sans-serif;
-	font-size: 11px;
-	text-align: center;
-	padding: 4px;
-	border: 1px #B3BCD4 solid;
-	cursor: pointer;
-}
-.caldayselected{
-	background-color: #737FAC;
-	color:	#fff;
-	font-family: Lucida Grande, Verdana, Geneva, Sans-serif;
-	font-size: 11px;
-	font-weight: bold;
-	text-align: center;
-	border: 1px #566188 solid;
-	padding: 3px;
-	cursor: pointer;
-}
-.calblanktop {
-	background-color: #fff;
-	padding: 4px;
-}
-.calblankbot {
-	background-color: #fff;
-	padding: 4px;
-}
-
-
-*/
-
-function js_calendar_script($form_name = 'entryform')
-{		
-$CI =& get_instance();
-$CI->load->language('calendar');
-ob_start();
-?>
-<script type="text/javascript">
-<!--
-var form_name	= "<?php echo $form_name; ?>";
-var format		= 'us'; // eu or us
-var days		= new Array(
-					'<?php echo $CI->lang->line('cal_su');?>', // Sunday, short name
-					'<?php echo $CI->lang->line('cal_mo');?>', // Monday, short name
-					'<?php echo $CI->lang->line('cal_tu');?>', // Tuesday, short name
-					'<?php echo $CI->lang->line('cal_wed');?>', // Wednesday, short name
-					'<?php echo $CI->lang->line('cal_thu');?>', // Thursday, short name
-					'<?php echo $CI->lang->line('cal_fri');?>', // Friday, short name
-					'<?php echo $CI->lang->line('cal_sat');?>' // Saturday, short name
-				);
-var months		= new Array(
-					'<?php echo $CI->lang->line('cal_january');?>',
-					'<?php echo $CI->lang->line('cal_february');?>',
-					'<?php echo $CI->lang->line('cal_march');?>',
-					'<?php echo $CI->lang->line('cal_april');?>',
-					'<?php echo $CI->lang->line('cal_mayl');?>',
-					'<?php echo $CI->lang->line('cal_june');?>',
-					'<?php echo $CI->lang->line('cal_july');?>',
-					'<?php echo $CI->lang->line('cal_august');?>',
-					'<?php echo $CI->lang->line('cal_september');?>',
-					'<?php echo $CI->lang->line('cal_october');?>',
-					'<?php echo $CI->lang->line('cal_november');?>',
-					'<?php echo $CI->lang->line('cal_december');?>'
-				);
-var last_click	= new Array();
-var current_month  = '';
-var current_year   = '';
-var last_date  = '';
-	
-function calendar(id, d, highlight, adjusted)
-{		
-	if (adjusted == undefined)
-	{	
-		var d = new Date(d * 1000);
-	}
-
-	this.id			= id;
-	this.highlight	= highlight;
-	this.date_obj	= d;
-	this.write		= build_calendar;
-	this.total_days	= total_days;
-	this.month		= d.getMonth();
-	this.date		= d.getDate();
-	this.day		= d.getDay();
-	this.year		= d.getFullYear();
-	this.hours		= d.getHours();
-	this.minutes	= d.getMinutes();
-	this.seconds	= d.getSeconds();
-	this.date_str	= date_str;
-				
-	if (highlight == false)
-	{
-		this.selected_date = '';
-	}
-	else
-	{
-		this.selected_date = this.year + '' + this.month + '' + this.date;
-	}
-			
-	//	Set the "selected date"
-	d.setDate(1);
-	this.firstDay = d.getDay();
-	
-	//then reset the date object to the correct date
-	d.setDate(this.date);
-}
-		
-//	Build the body of the calendar
-function build_calendar()
-{
-	var str = '';
-	
-	//	Calendar Heading
-	
-	str += '<div id="cal' + this.id + '">';
-	str += '<table class="calendar" cellspacing="0" cellpadding="0" border="0" >';
-	str += '<tr>';
-	str += '<td class="calnavleft" onClick="change_month(-1, \'' + this.id + '\')">&lt;&lt;<\/td>';
-	str += '<td colspan="5" class="calheading">' + months[this.month] + ' ' + this.year + '<\/td>';
-	str += '<td class="calnavright" onClick="change_month(1, \'' + this.id + '\')">&gt;&gt;<\/td>';
-	str += '<\/tr>';
-	
-	//	Day Names
-	
-	str += '<tr>';
-	
-	for (i = 0; i < 7; i++)
-	{
-		str += '<td class="caldayheading">' + days[i] + '<\/td>';
-	}
-	
-	str += '<\/tr>';
-	
-	//	Day Cells
-		
-	str += '<tr>';
-	
-	selDate = (last_date != '') ? last_date : this.date;
-	
-	for (j = 0; j < 42; j++)
-	{
-		var displayNum = (j - this.firstDay + 1);
-		
-		if (j < this.firstDay) // leading empty cells
-		{
-			str += '<td class="calblanktop">&nbsp;<\/td>';
-		}
-		else if (displayNum == selDate && this.highlight == true) // Selected date
-		{
-			str += '<td id="' + this.id +'selected" class="caldayselected" onClick="set_date(this,\'' + this.id + '\')">' + displayNum + '<\/td>';
-		}
-		else if (displayNum > this.total_days())
-		{
-			str += '<td class="calblankbot">&nbsp;<\/td>'; // trailing empty cells
-		}
-		else  // Unselected days
-		{
-			str += '<td id="" class="caldaycells" onClick="set_date(this,\'' + this.id + '\'); return false;"  onMouseOver="javascript:cell_highlight(this,\'' + displayNum + '\',\'' + this.id + '\');" onMouseOut="javascript:cell_reset(this,\'' + displayNum + '\',\'' + this.id + '\');" >' + displayNum + '<\/td>';
-		}
-		
-		if (j % 7 == 6)
-		{
-			str += '<\/tr><tr>';
-		}
-	}
-
-	str += '<\/tr>';	
-	str += '<\/table>';
-	str += '<\/div>';
-	
-	return str;
-}
-
-//	Total number of days in a month
-function total_days()
-{	
-	switch(this.month)
-	{
-		case 1: // Check for leap year
-			if ((  this.date_obj.getFullYear() % 4 == 0
-				&& this.date_obj.getFullYear() % 100 != 0)
-				|| this.date_obj.getFullYear() % 400 == 0)
-				return 29;
-			else
-				return 28;
-		case 3:
-			return 30;
-		case 5:
-			return 30;
-		case 8:
-			return 30;
-		case 10:
-			return 30
-		default:
-			return 31;
-	}
-}
-
-//	Highlight Cell on Mouseover
-function cell_highlight(td, num, cal)
-{
-	cal = eval(cal);
-
-	if (last_click[cal.id]  != num)
-	{
-		td.className = "caldaycellhover";
-	}
-}		
-
-//	Reset Cell on MouseOut
-function cell_reset(td, num, cal)
-{	
-	cal = eval(cal);
-
-	if (last_click[cal.id] == num)
-	{
-		td.className = "caldayselected";
-	}
-	else
-	{
-		td.className = "caldaycells";
-	}
-}		
-
-//	Clear Field
-function clear_field(id)
-{				
-	eval("document." + form_name + "." + id + ".value = ''");
-	
-	document.getElementById(id + "selected").className = "caldaycells";
-	document.getElementById(id + "selected").id = "";	
-	
-	cal = eval(id);
-	cal.selected_date = '';		
-}		
-
-
-//	Set date to specified time
-function set_to_time(id, raw)
-{			
-	if (document.getElementById(id + "selected"))
-	{			
-		document.getElementById(id + "selected").className = "caldaycells";
-		document.getElementById(id + "selected").id = "";	
-	}
-	
-	document.getElementById('cal' + id).innerHTML = '<div id="tempcal'+id+'">&nbsp;<'+'/div>';				
-		
-	var nowDate = new Date();
-	nowDate.setTime = raw * 1000;
-	
-	current_month	= nowDate.getMonth();
-	current_year	= nowDate.getFullYear();
-	current_date	= nowDate.getDate();
-	
-	oldcal = eval(id);
-	oldcal.selected_date = current_year + '' + current_month + '' + current_date;				
-
-	cal = new calendar(id, nowDate, true, true);		
-	cal.selected_date = current_year + '' + current_month + '' + current_date;	
-	
-	last_date = cal.date;
-	
-	document.getElementById('tempcal'+id).innerHTML = cal.write();	
-	
-	insert_date(cal);
-}
-
-//	Set date to what is in the field
-var lastDates = new Array();
-
-function update_calendar(id, dateValue)
-{
-	if (lastDates[id] == dateValue) return;
-	
-	lastDates[id] = dateValue;
-	
-	var fieldString = dateValue.replace(/\s+/g, ' ');
-	
-	while (fieldString.substring(0,1) == ' ')
-	{
-		fieldString = fieldString.substring(1, fieldString.length);
-	}
-	
-	var dateString = fieldString.split(' ');
-	var dateParts = dateString[0].split('-')
-
-	if (dateParts.length < 3) return;
-	var newYear  = dateParts[0];
-	var newMonth = dateParts[1];
-	var newDay   = dateParts[2];
-	
-	if (isNaN(newDay)  || newDay < 1 || (newDay.length != 1 && newDay.length != 2)) return;
-	if (isNaN(newYear) || newYear < 1 || newYear.length != 4) return;
-	if (isNaN(newMonth) || newMonth < 1 || (newMonth.length != 1 && newMonth.length != 2)) return;
-	
-	if (newMonth > 12) newMonth = 12;
-	
-	if (newDay > 28)
-	{
-		switch(newMonth - 1)
-		{
-			case 1: // Check for leap year
-				if ((newYear % 4 == 0 && newYear % 100 != 0) || newYear % 400 == 0)
-				{
-					if (newDay > 29) newDay = 29;
-				}
-				else
-				{
-					if (newDay > 28) newDay = 28;
-				}
-			case 3:
-				if (newDay > 30) newDay = 30;
-			case 5:
-				if (newDay > 30) newDay = 30;
-			case 8:
-				if (newDay > 30) newDay = 30;
-			case 10:
-				if (newDay > 30) newDay = 30;
-			default:
-				if (newDay > 31) newDay = 31;
-		}
-	}
-	
-	if (document.getElementById(id + "selected"))
-	{			
-		document.getElementById(id + "selected").className = "caldaycells";
-		document.getElementById(id + "selected").id = "";	
-	}
-	
-	document.getElementById('cal' + id).innerHTML = '<div id="tempcal'+id+'">&nbsp;<'+'/div>';				
-		
-	var nowDate = new Date();
-	nowDate.setDate(newDay);
-	nowDate.setMonth(newMonth - 1);
-	nowDate.setYear(newYear);
-	nowDate.setHours(12);
-	
-	current_month	= nowDate.getMonth();
-	current_year	= nowDate.getFullYear();
-
-	cal = new calendar(id, nowDate, true, true);						
-	document.getElementById('tempcal'+id).innerHTML = cal.write();	
-}
-
-//	Set the date
-function set_date(td, cal)
-{					
-
-	cal = eval(cal);
-	
-	// If the user is clicking a cell that is already
-	// selected we'll de-select it and clear the form field
-	
-	if (last_click[cal.id] == td.firstChild.nodeValue)
-	{
-		td.className = "caldaycells";
-		last_click[cal.id] = '';
-		remove_date(cal);
-		cal.selected_date =  '';
-		return;
-	}
-				
-	// Onward!
-	if (document.getElementById(cal.id + "selected"))
-	{
-		document.getElementById(cal.id + "selected").className = "caldaycells";
-		document.getElementById(cal.id + "selected").id = "";
-	}
-									
-	td.className = "caldayselected";
-	td.id = cal.id + "selected";
-
-	cal.selected_date = cal.date_obj.getFullYear() + '' + cal.date_obj.getMonth() + '' + cal.date;			
-	cal.date_obj.setDate(td.firstChild.nodeValue);
-	cal = new calendar(cal.id, cal.date_obj, true, true);
-	cal.selected_date = cal.date_obj.getFullYear() + '' + cal.date_obj.getMonth() + '' + cal.date;			
-	
-	last_date = cal.date;
-
-	//cal.date
-	last_click[cal.id] = cal.date;
-				
-	// Insert the date into the form
-	insert_date(cal);
-}
-/*
-//	Insert the date into the form field
-function insert_date(cal)
-{
-	cal = eval(cal);
-	fval = eval("document." + form_name + "." + cal.id);	
-	
-	if (fval.value == '')
-	{
-		fval.value = cal.date_str('y');
-	}
-	else
-	{
-		time = fval.value.substring(10);
-		new_date = cal.date_str('n') + time;
-		fval.value = new_date;
-	}	
-}
-*/		
-//	Remove the date from the form field
-function remove_date(cal)
-{
-	cal = eval(cal);
-	fval = eval("document." + form_name + "." + cal.id);	
-	fval.value = '';
-}
-
-//	Change to a new month
-function change_month(mo, cal)
-{		
-	cal = eval(cal);
-
-	if (current_month != '')
-	{
-		cal.date_obj.setMonth(current_month);
-		cal.date_obj.setYear(current_year);
-	
-		current_month	= '';
-		current_year	= '';
-	}
-				
-	var newMonth = cal.date_obj.getMonth() + mo;
-	var newDate  = cal.date_obj.getDate();
-	
-	if (newMonth == 12)
-	{
-		cal.date_obj.setYear(cal.date_obj.getFullYear() + 1)
-		newMonth = 0;
-	}
-	else if (newMonth == -1)
-	{
-		cal.date_obj.setYear(cal.date_obj.getFullYear() - 1)
-		newMonth = 11;
-	}
-	
-	if (newDate > 28)
-	{
-		var newYear = cal.date_obj.getFullYear();
-		
-		switch(newMonth)
-		{
-			case 1: // Check for leap year
-				if ((newYear % 4 == 0 && newYear % 100 != 0) || newYear % 400 == 0)
-				{
-					if (newDate > 29) newDate = 29;
-				}
-				else
-				{
-					if (newDate > 28) newDate = 28;
-				}
-			case 3:
-				if (newDate > 30) newDate = 30;
-			case 5:
-				if (newDate > 30) newDate = 30;
-			case 8:
-				if (newDate > 30) newDate = 30;
-			case 10:
-				if (newDate > 30) newDate = 30;
-			default:
-				if (newDate > 31) newDate = 31;
-		}
-	}
-	
-	cal.date_obj.setDate(newDate);
-	cal.date_obj.setMonth(newMonth);
-	new_mdy	= cal.date_obj.getFullYear() + '' + cal.date_obj.getMonth() + '' + cal.date;
-	
-	highlight = (cal.selected_date == new_mdy) ? true : false;			
-	cal = new calendar(cal.id, cal.date_obj, highlight, true); 			
-	document.getElementById('cal' + cal.id).innerHTML = cal.write();	
-}
-
-//	Finalize the date string
-function date_str(time)
-{
-	var month = this.month + 1;
-	if (month < 10)
-		month = '0' + month;
-		
-	var day		= (this.date  < 10) 	?  '0' + this.date		: this.date;
-	var minutes	= (this.minutes  < 10)	?  '0' + this.minutes	: this.minutes;
-		
-	if (format == 'us')
-	{
-		var hours	= (this.hours > 12) ? this.hours - 12 : this.hours;
-		var ampm	= (this.hours > 11) ? 'PM' : 'AM'
-	}
-	else
-	{
-		var hours	= this.hours;
-		var ampm	= '';
-	}
-	
-	if (time == 'y')
-	{
-		return this.year + '-' + month + '-' + day + '  ' + hours + ':' + minutes + ' ' + ampm;		
-	}
-	else
-	{
-		return this.year + '-' + month + '-' + day;
-	}
-}
-
-//-->
-</script>
-<?php
-
-$r = ob_get_contents();
-ob_end_clean();
-return $r;
-}
-
-
-function js_calendar_write($field_id, $time = '', $highlight = TRUE)
-{
-	if ($time == '')
-		$time = time();
-
-	return
-	'<script type="text/javascript">
-		var '.$field_id.' = new calendar("'.$field_id.'", '.$time.', '.(($highlight == TRUE) ? 'true' : 'false').');
-		document.write('.$field_id.'.write());
-	</script>';	
-}	
-
-
-/* End of file js_calendar_pi.php */
-/* Location: ./system/plugins/js_calendar_pi.php */
\ No newline at end of file
diff --git a/system/scaffolding/Scaffolding.php b/system/scaffolding/Scaffolding.php
deleted file mode 100644
index d110626b1..000000000
--- a/system/scaffolding/Scaffolding.php
+++ /dev/null
@@ -1,291 +0,0 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2010, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * Scaffolding Class
- *
- * Provides the Scaffolding framework
- *
- * @package		CodeIgniter
- * @subpackage	Scaffolding
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/general/scaffolding.html
- */
-class Scaffolding {
-
-	var $CI;
-	var $current_table;
-	var $base_url = '';
-	var $lang = array();
-
-	function Scaffolding($db_table)
-	{
-		$this->CI =& get_instance();
-		
-		$this->CI->load->database("", FALSE, TRUE);			
-		$this->CI->load->library('pagination');
-		
-		// Turn off caching
-		$this->CI->db->cache_off();
-				
-		/**
-		 * Set the current table name
-		 * This is done when initializing scaffolding:
-		 * $this->load->scaffolding('table_name')
-		 *
-		 */
-		$this->current_table = $db_table;
-		
-		/**
-		 * Set the path to the "view" files
-		 * We'll manually override the "view" path so that
-		 * the load->view function knows where to look.
-		 */
-		
-		$this->CI->load->_ci_view_path = BASEPATH.'scaffolding/views/';
-
-		// Set the base URL
-		$this->base_url = $this->CI->config->site_url().'/'.$this->CI->uri->segment(1).$this->CI->uri->slash_segment(2, 'both');
-		$this->base_uri = $this->CI->uri->segment(1).$this->CI->uri->slash_segment(2, 'leading');
-
-		// Set a few globals
-		$data = array(
-						'image_url'	=> $this->CI->config->system_url().'scaffolding/images/',
-						'base_uri'  => $this->base_uri,
-						'base_url'	=> $this->base_url,
-						'title'		=> $this->current_table
-					);
-		
-		$this->CI->load->vars($data);
-		
-		// Load the language file and create variables
-		$this->lang = $this->CI->load->scaffold_language('scaffolding', '', TRUE);
-		$this->CI->load->vars($this->lang);
-				
-		//  Load the helper files we plan to use
-		$this->CI->load->helper(array('url', 'form'));
-		
-				
-		log_message('debug', 'Scaffolding Class Initialized');
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * "Add" Page
-	 *
-	 * Shows a form representing the currently selected DB
-	 * so that data can be inserted
-	 *
-	 * @access	public
-	 * @return	string	the HTML "add" page
-	 */
-	function add()
-	{	
-		$data = array(
-						'title'	=>  ( ! isset($this->lang['scaff_add'])) ? 'Add Data' : $this->lang['scaff_add'],
-						'fields' => $this->CI->db->field_data($this->current_table),
-						'action' => $this->base_uri.'/insert'
-					);
-	
-		$this->CI->load->view('add', $data);
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Insert the data
-	 *
-	 * @access	public
-	 * @return	void	redirects to the view page
-	 */
-	function insert()
-	{		
-		if ($this->CI->db->insert($this->current_table, $_POST) === FALSE)
-		{
-			$this->add();
-		}
-		else
-		{
-			redirect($this->base_uri.'/view/');
-		}
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * "View" Page
-	 *
-	 * Shows a table containing the data in the currently
-	 * selected DB
-	 *
-	 * @access	public
-	 * @return	string	the HTML "view" page
-	 */
-	function view()
-	{
-		// Fetch the total number of DB rows
-		$total_rows = $this->CI->db->count_all($this->current_table);
-		
-		if ($total_rows < 1)
-		{
-			return $this->CI->load->view('no_data');
-		}
-		
-		// Set the query limit/offset
-		$per_page = 20;
-		$offset = $this->CI->uri->segment(4, 0);
-		
-		// Run the query
-		$query = $this->CI->db->get($this->current_table, $per_page, $offset);
-
-		// Now let's get the field names				
-		$fields = $this->CI->db->list_fields($this->current_table);
-		
-		// We assume that the column in the first position is the primary field.
-		$primary = current($fields);
-
-		// Pagination!
-		$this->CI->pagination->initialize(
-							array(
-									'base_url'		 => $this->base_url.'/view',
-									'total_rows'	 => $total_rows,
-									'per_page'		 => $per_page,
-									'uri_segment'	 => 4,
-									'full_tag_open'	 => '<p>',
-									'full_tag_close' => '</p>'
-									)
-								);	
-
-		$data = array(
-						'title'	=>  ( ! isset($this->lang['scaff_view'])) ? 'View Data' : $this->lang['scaff_view'],
-						'query'		=> $query,
-						'fields'	=> $fields,
-						'primary'	=> $primary,
-						'paginate'	=> $this->CI->pagination->create_links()
-					);
-						
-		$this->CI->load->view('view', $data);
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * "Edit" Page
-	 *
-	 * Shows a form representing the currently selected DB
-	 * so that data can be edited
-	 *
-	 * @access	public
-	 * @return	string	the HTML "edit" page
-	 */
-	function edit()
-	{
-		if (FALSE === ($id = $this->CI->uri->segment(4)))
-		{
-			return $this->view();
-		}
-
-		// Fetch the primary field name
-		$primary = $this->CI->db->primary($this->current_table);				
-
-		// Run the query
-		$query = $this->CI->db->get_where($this->current_table, array($primary => $id));
-
-		$data = array(
-						'title'	=>  ( ! isset($this->lang['scaff_edit'])) ? 'Edit Data' : $this->lang['scaff_edit'],
-						'fields'	=> $query->field_data(),
-						'query'		=> $query->row(),
-						'action'	=> $this->base_uri.'/update/'.$this->CI->uri->segment(4)
-					);
-	
-		$this->CI->load->view('edit', $data);
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Update
-	 *
-	 * @access	public
-	 * @return	void	redirects to the view page
-	 */
-	function update()
-	{	
-		// Fetch the primary key
-		$primary = $this->CI->db->primary($this->current_table);				
-
-		// Now do the query
-		$this->CI->db->update($this->current_table, $_POST, array($primary => $this->CI->uri->segment(4)));
-		
-		redirect($this->base_uri.'/view/');
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Delete Confirmation
-	 *
-	 * @access	public
-	 * @return	string	the HTML "delete confirm" page
-	 */
-	function delete()
-	{
-		if ( ! isset($this->lang['scaff_del_confirm']))
-		{
-			$message = 'Are you sure you want to delete the following row: '.$this->CI->uri->segment(4);
-		}
-		else
-		{
-			$message = $this->lang['scaff_del_confirm'].' '.$this->CI->uri->segment(4);
-		}
-		
-		$data = array(
-						'title'		=> ( ! isset($this->lang['scaff_delete'])) ? 'Delete Data' : $this->lang['scaff_delete'],
-						'message'	=> $message,
-						'no'		=> anchor(array($this->base_uri, 'view'), ( ! isset($this->lang['scaff_no'])) ? 'No' : $this->lang['scaff_no']),
-						'yes'		=> anchor(array($this->base_uri, 'do_delete', $this->CI->uri->segment(4)), ( ! isset($this->lang['scaff_yes'])) ? 'Yes' : $this->lang['scaff_yes'])
-					);
-	
-		$this->CI->load->view('delete', $data);
-	}
-	
-	// --------------------------------------------------------------------
-	
-	/**
-	 * Delete
-	 *
-	 * @access	public
-	 * @return	void	redirects to the view page
-	 */
-	function do_delete()
-	{		
-		// Fetch the primary key
-		$primary = $this->CI->db->primary($this->current_table);				
-
-		// Now do the query
-		$this->CI->db->where($primary, $this->CI->uri->segment(4));
-		$this->CI->db->delete($this->current_table);
-
-		header("Refresh:0;url=".site_url(array($this->base_uri, 'view')));
-		exit;
-	}
-
-}
-
-/* End of file Scaffolding.php */
-/* Location: ./system/scaffolding/Scaffolding.php */
\ No newline at end of file
diff --git a/system/scaffolding/images/background.jpg b/system/scaffolding/images/background.jpg
deleted file mode 100644
index 9d5bdcea1..000000000
--- a/system/scaffolding/images/background.jpg
+++ /dev/null
diff --git a/system/scaffolding/images/logo.jpg b/system/scaffolding/images/logo.jpg
deleted file mode 100644
index d6cc9a76d..000000000
--- a/system/scaffolding/images/logo.jpg
+++ /dev/null
diff --git a/system/scaffolding/views/add.php b/system/scaffolding/views/add.php
deleted file mode 100644
index cbb12f6fb..000000000
--- a/system/scaffolding/views/add.php
+++ /dev/null
@@ -1,32 +0,0 @@
-<?php  $this->load->view('header');  ?>
-
-<p><?php echo anchor(array($base_uri, 'view'), '&lt; '.$scaff_view_all); ?></p>
-
-
-<?php echo form_open($action); ?>
-
-<table border="0" cellpadding="3" cellspacing="1">
-<?php foreach($fields as $field): ?>
-
-<?php if ($field->primary_key == 1) continue; ?>
-
-<tr>
-	<td><?php echo $field->name; echo ' '.$field->default; ?></td>
-	
-	<?php if ($field->type == 'blob'): ?>
-	<td><textarea class="textarea" name="<?php echo $field->name; ?>" cols="60" rows="10" ><?php echo form_prep($field->default); ?></textarea></td>
-	<?php else : ?>
-	<td><input class="input" name="<?php echo $field->name; ?>" value="<?php echo form_prep($field->default); ?>" size="60" /></td>
-	<?php endif; ?>
-	
-</tr>
-<?php endforeach; ?>
-</table>
-
-<input type="submit" class="submit" value="Insert" />
-
-</form>
-
-<?php $this->load->view('footer'); 
-/* End of file add.php */
-/* Location: ./system/scaffolding/views/add.php */
diff --git a/system/scaffolding/views/delete.php b/system/scaffolding/views/delete.php
deleted file mode 100644
index d19542195..000000000
--- a/system/scaffolding/views/delete.php
+++ /dev/null
@@ -1,9 +0,0 @@
-<?php  $this->load->view('header');  ?>
-
-<p><?php echo $message; ?></p>
-
-<p><?php echo $no; ?>&nbsp;&nbsp;|&nbsp;&nbsp;<?php echo $yes; ?>
-
-<?php $this->load->view('footer'); 
-/* End of file delete.php */
-/* Location: ./system/scaffolding/views/delete.php */
diff --git a/system/scaffolding/views/edit.php b/system/scaffolding/views/edit.php
deleted file mode 100644
index fe553e591..000000000
--- a/system/scaffolding/views/edit.php
+++ /dev/null
@@ -1,33 +0,0 @@
-<?php $this->load->view('header');  ?>
-
-
-<p><?php echo anchor(array($base_uri, 'view'), '&lt; '.$scaff_view_all);?></p>
-
-
-<?php echo form_open($action); ?>
-
-<table border="0" cellpadding="3" cellspacing="1">
-<?php foreach($fields as $field): ?>
-
-<?php if ($field->primary_key == 1) continue; ?>
-
-<tr>
-	<td><?php echo  $field->name; ?></td>
-	
-	<?php if ($field->type == 'blob'): ?>
-	<td><textarea class="textarea" name="<?php echo $field->name;?>" cols="60" rows="10" ><?php $f = $field->name; echo form_prep($query->$f); ?></textarea></td>
-	<?php else : ?>
-	<td><input class="input" value="<?php $f = $field->name; echo form_prep($query->$f); ?>" name="<?php echo $field->name; ?>" size="60" /></td>
-	<?php endif; ?>
-	
-</tr>
-<?php endforeach; ?>
-</table>
-
-<input type="submit" class="submit" value="Update" />
-
-</form>
-
-<?php $this->load->view('footer'); 
-/* End of file edit.php */
-/* Location: ./system/scaffolding/views/edit.php */
\ No newline at end of file
diff --git a/system/scaffolding/views/footer.php b/system/scaffolding/views/footer.php
deleted file mode 100644
index 0e71401c9..000000000
--- a/system/scaffolding/views/footer.php
+++ /dev/null
@@ -1,10 +0,0 @@
-
-</div>
-
-<div id="footer">
-<p><a href="http://codeigniter.com/">CodeIgniter</a>, by <a href="http://www.EllisLab.com">EllisLab</a> -  Version <?php echo CI_VERSION ?></p>
-<p>Page rendered in {elapsed_time}</p>
-</div>
-
-</body>
-</html>
\ No newline at end of file
diff --git a/system/scaffolding/views/header.php b/system/scaffolding/views/header.php
deleted file mode 100644
index 50f234a49..000000000
--- a/system/scaffolding/views/header.php
+++ /dev/null
@@ -1,29 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html>
-<head>
-
-<title><?php echo $title; ?></title>
-
-<style type='text/css'>
-<?php $this->file(BASEPATH.'scaffolding/views/stylesheet.css'); ?>
-</style>
-
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<meta http-equiv='expires' content='-1' />
-<meta http-equiv= 'pragma' content='no-cache' />
-
-</head>
-<body>
-
-<div id="header">
-<div id="header_left">
-<h3>Scaffolding:&nbsp; <?php echo $title; ?></h3>
-</div>
-<div id="header_right">
-<?php echo anchor(array($base_uri, 'view'), $scaff_view_records); ?> &nbsp;&nbsp;|&nbsp;&nbsp;
-<?php echo anchor(array($base_uri, 'add'),  $scaff_create_record); ?>
-</div>
-</div>
-
-<br clear="all">
-<div id="outer">
\ No newline at end of file
diff --git a/system/scaffolding/views/index.html b/system/scaffolding/views/index.html
deleted file mode 100644
index c942a79ce..000000000
--- a/system/scaffolding/views/index.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<html>
-<head>
-	<title>403 Forbidden</title>
-</head>
-<body>
-
-<p>Directory access is forbidden.</p>
-
-</body>
-</html>
\ No newline at end of file
diff --git a/system/scaffolding/views/no_data.php b/system/scaffolding/views/no_data.php
deleted file mode 100644
index bc81e7480..000000000
--- a/system/scaffolding/views/no_data.php
+++ /dev/null
@@ -1,8 +0,0 @@
-<?php  $this->load->view('header');  ?>
-
-<p><?php echo $scaff_no_data; ?></p>
-<p><?php echo anchor(array($base_uri, 'add'), $scaff_create_record); ?></p>
-
-<?php $this->load->view('footer'); 
-/* End of file no_data.php */
-/* Location: ./system/scaffolding/views/no_data.php */
\ No newline at end of file
diff --git a/system/scaffolding/views/stylesheet.css b/system/scaffolding/views/stylesheet.css
deleted file mode 100644
index 3f487dd0b..000000000
--- a/system/scaffolding/views/stylesheet.css
+++ /dev/null
@@ -1,143 +0,0 @@
-body {
- margin: 0;
- padding: 0;
- font-family: Lucida Grande, Verdana, Geneva, Sans-serif;
- font-size: 11px;
- color: #4F5155;
- background: #fff url(<?php echo $image_url; ?>background.jpg) repeat-x left top;
-}
-
-a {
- color: #8B0D00;
- background-color: transparent;
- text-decoration: none;
- font-weight: bold;
-}
-
-a:visited {
- color: #8B0D00;
- background-color: transparent;
- text-decoration: none;
-}
-
-a:hover {
- color: #000;
- text-decoration: none;
- background-color: transparent;
-}
-
-
-#header {
- margin: 0;
- padding: 0;
-}
-
-#header_left {
- background-color: transparent;
- float: left;
- padding: 21px 0 0 32px;
- margin: 0
-}
-
-#header_right {
- background-color: transparent;
- float: right;
- text-align: right;
- padding: 35px 50px 20px 0;
- margin: 0
-}
-
-#footer {
- margin: 20px 0 15px 0;
- padding: 0;
-}
-
-#footer p {
- font-size: 10px;
- color: #999;
- text-align: center;
-}
-
-#outer {
- margin: 30px 40px 0 40px;
-}
-
-img {
- padding:0;
- border: 0;
- margin: 0;
-}
-
-.nopad {
- padding:0;
- border: 0;
- margin: 0;
-}
-
-table {
- background-color: #efefef;
-}
-
-th {
- background-color: #eee;
- font-weight: bold;
- padding: 6px;
- text-align: left;
-}
-
-td {
- background-color: #fff;
- padding: 6px;
-}
-
-
-form {
- margin: 0;
- padding: 0;
-}
-
-.input {
- font-family: Lucida Grande, Verdana, Geneva, Sans-serif;
- font-size: 11px;
- width: 600px;
- color: #333;
- border: 1px solid #B3B4BD;
- font-size: 11px;
- height: 2em;
- padding: 0;
- margin: 0;
-}
-
-.textarea {
- font-family: Lucida Grande, Verdana, Geneva, Sans-serif;
- font-size: 12px;
- width: 600px;
- color: #333;
- border: 1px solid #B3B4BD;
- padding: 0;
- margin: 0;
-}
-
-.select {
- background-color: #fff;
- font-size:  11px;
- font-weight: normal;
- color: #333;
- padding: 0;
- margin: 0 0 3px 0;
-}
-
-.checkbox {
- background-color: transparent;
- padding: 0;
- border: 0;
-}
-
-.submit {
- background-color: #8B0D00;
- color: #FFF;
- font-weight: normal;
- border: 1px solid #000;
- margin: 6px 0 0 0;
- padding: 1px 5px 1px 5px;
-}
diff --git a/system/scaffolding/views/view.php b/system/scaffolding/views/view.php
deleted file mode 100644
index a81241d39..000000000
--- a/system/scaffolding/views/view.php
+++ /dev/null
@@ -1,27 +0,0 @@
-<?php  $this->load->view('header');  ?>
-
-<table border="0" cellpadding="0" cellspacing="1" style="width:100%">
- <tr>
-	<th>Edit</th>
-	<th>Delete</th>
-	<?php foreach($fields as $field): ?>
-	<th><?php echo $field; ?></th>
-	<?php endforeach; ?>
-</tr>
-
-<?php foreach($query->result() as $row): ?>
- <tr>
-	<td>&nbsp;<?php echo anchor(array($base_uri, 'edit', $row->$primary), $scaff_edit); ?>&nbsp;</td>
- 	<td><?php echo anchor(array($base_uri, 'delete', $row->$primary), $scaff_delete); ?></td>
- 	<?php foreach($fields as $field): ?>	
-	<td><?php echo form_prep($row->$field);?></td>
-	<?php endforeach; ?>
- </tr>
-<?php endforeach; ?>
-</table>
-
-<?php echo $paginate; ?>
-
-<?php $this->load->view('footer'); 
-/* End of file view.php */
-/* Location: ./system/scaffolding/views/view.php */
\ No newline at end of file