Merge branch 'refs/heads/develop' into feature/unit-tests

Conflicts:
	user_guide/helpers/number_helper.html

128 files changed, 4426 insertions, 1009 deletions

diff --git a/system/core/Benchmark.php b/system/core/Benchmark.php
index a200727ab..0f3104079 100755
--- a/system/core/Benchmark.php
+++ b/system/core/Benchmark.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ * 
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -24,7 +36,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/benchmark.html
  */
 class CI_Benchmark {
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
index aca4fb23c..4d76a5587 100755
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	codeigniter
  * @category	Front-controller
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/
  */
 
@@ -33,27 +45,7 @@
  * @var string
  *
  */
-	/**
-	 * CodeIgniter Version
-	 *
-	 * @var string
-	 *
-	 */
-	define('CI_VERSION', '2.1.0-dev');
-
-/**
- * CodeIgniter Branch (Core = TRUE, Reactor = FALSE)
- *
- * @var boolean
- *
- */
-	/**
-	 * CodeIgniter Branch (Core = TRUE, Reactor = FALSE)
-	 *
-	 * @var string
-	 *
-	 */
-	define('CI_CORE', FALSE);
+	define('CI_VERSION', '3.0-dev');
 
 /*
  * ------------------------------------------------------
diff --git a/system/core/Common.php b/system/core/Common.php
index d79375475..b0921fe0c 100644
--- a/system/core/Common.php
+++ b/system/core/Common.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	codeigniter
  * @category	Common Functions
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/
  */
 
@@ -407,6 +419,7 @@ if ( ! function_exists('set_status_header'))
 							415	=> 'Unsupported Media Type',
 							416	=> 'Requested Range Not Satisfiable',
 							417	=> 'Expectation Failed',
+							422	=> 'Unprocessable Entity',
 
 							500	=> 'Internal Server Error',
 							501	=> 'Not Implemented',
diff --git a/system/core/Config.php b/system/core/Config.php
index 9c5e22fb2..4ad24ab70 100755
--- a/system/core/Config.php
+++ b/system/core/Config.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/config.html
  */
 class CI_Config {
diff --git a/system/core/Controller.php b/system/core/Controller.php
index fddb81e19..ca2bf41b5 100644
--- a/system/core/Controller.php
+++ b/system/core/Controller.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -24,7 +36,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/general/controllers.html
  */
 class CI_Controller {
diff --git a/system/core/Exceptions.php b/system/core/Exceptions.php
index 869739a5a..ead8d814e 100755
--- a/system/core/Exceptions.php
+++ b/system/core/Exceptions.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Exceptions
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/exceptions.html
  */
 class CI_Exceptions {
diff --git a/system/core/Hooks.php b/system/core/Hooks.php
index 33f1c034c..46bfec02a 100755
--- a/system/core/Hooks.php
+++ b/system/core/Hooks.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/encryption.html
  */
 class CI_Hooks {
diff --git a/system/core/Input.php b/system/core/Input.php
index 0dc2c4550..3cbbe787f 100755
--- a/system/core/Input.php
+++ b/system/core/Input.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Input
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/input.html
  */
 class CI_Input {
@@ -110,13 +122,13 @@ class CI_Input {
 	 *
 	 * This is a helper function to retrieve values from global arrays
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	array
 	 * @param	string
 	 * @param	bool
 	 * @return	string
 	 */
-	function _fetch_from_array(&$array, $index = '', $xss_clean = FALSE)
+	protected function _fetch_from_array(&$array, $index = '', $xss_clean = FALSE)
 	{
 		if ( ! isset($array[$index]))
 		{
@@ -141,7 +153,7 @@ class CI_Input {
 	* @param	bool
 	* @return	string
 	*/
-	function get($index = NULL, $xss_clean = FALSE)
+	public function get($index = NULL, $xss_clean = FALSE)
 	{
 		// Check if a field has been provided
 		if ($index === NULL AND ! empty($_GET))
@@ -169,7 +181,7 @@ class CI_Input {
 	* @param	bool
 	* @return	string
 	*/
-	function post($index = NULL, $xss_clean = FALSE)
+	public function post($index = NULL, $xss_clean = FALSE)
 	{
 		// Check if a field has been provided
 		if ($index === NULL AND ! empty($_POST))
@@ -198,7 +210,7 @@ class CI_Input {
 	* @param	bool	XSS cleaning
 	* @return	string
 	*/
-	function get_post($index = '', $xss_clean = FALSE)
+	public function get_post($index = '', $xss_clean = FALSE)
 	{
 		if ( ! isset($_POST[$index]) )
 		{
@@ -220,7 +232,7 @@ class CI_Input {
 	* @param	bool
 	* @return	string
 	*/
-	function cookie($index = '', $xss_clean = FALSE)
+	public function cookie($index = '', $xss_clean = FALSE)
 	{
 		return $this->_fetch_from_array($_COOKIE, $index, $xss_clean);
 	}
@@ -243,7 +255,7 @@ class CI_Input {
 	* @param	bool	true makes the cookie secure
 	* @return	void
 	*/
-	function set_cookie($name = '', $value = '', $expire = '', $domain = '', $path = '/', $prefix = '', $secure = FALSE)
+	public function set_cookie($name = '', $value = '', $expire = '', $domain = '', $path = '/', $prefix = '', $secure = FALSE)
 	{
 		if (is_array($name))
 		{
@@ -296,7 +308,7 @@ class CI_Input {
 	* @param	bool
 	* @return	string
 	*/
-	function server($index = '', $xss_clean = FALSE)
+	public function server($index = '', $xss_clean = FALSE)
 	{
 		return $this->_fetch_from_array($_SERVER, $index, $xss_clean);
 	}
@@ -309,7 +321,7 @@ class CI_Input {
 	* @access	public
 	* @return	string
 	*/
-	function ip_address()
+	public function ip_address()
 	{
 		if ($this->ip_address !== FALSE)
 		{
@@ -369,10 +381,16 @@ class CI_Input {
 	*
 	* @access	public
 	* @param	string
-	* @return	string
+	* @return	bool
 	*/
-	function valid_ip($ip)
+	public function valid_ip($ip)
 	{
+		// if php version >= 5.2, use filter_var to check validate ip.
+		if (function_exists('filter_var'))
+		{
+			return (bool) filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
+		}
+
 		$ip_segments = explode('.', $ip);
 
 		// Always 4 segments needed
@@ -407,7 +425,7 @@ class CI_Input {
 	* @access	public
 	* @return	string
 	*/
-	function user_agent()
+	public function user_agent()
 	{
 		if ($this->user_agent !== FALSE)
 		{
@@ -435,7 +453,7 @@ class CI_Input {
 	* @access	private
 	* @return	void
 	*/
-	function _sanitize_globals()
+	private function _sanitize_globals()
 	{
 		// It would be "wrong" to unset any of these GLOBALS.
 		$protected = array('_SERVER', '_GET', '_POST', '_FILES', '_REQUEST',
@@ -536,7 +554,7 @@ class CI_Input {
 	* @param	string
 	* @return	string
 	*/
-	function _clean_input_data($str)
+	private function _clean_input_data($str)
 	{
 		if (is_array($str))
 		{
@@ -548,8 +566,12 @@ class CI_Input {
 			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())
+		/* We strip slashes if magic quotes is on to keep things consistent
+
+		   NOTE: In PHP 5.4 get_magic_quotes_gpc() will always return 0 and
+			 it will probably not exist in future versions at all.
+		*/
+		if ( ! is_php('5.4') && get_magic_quotes_gpc())
 		{
 			$str = stripslashes($str);
 		}
@@ -594,7 +616,7 @@ class CI_Input {
 	* @param	string
 	* @return	string
 	*/
-	function _clean_input_keys($str)
+	private function _clean_input_keys($str)
 	{
 		if ( ! preg_match("/^[a-z0-9:_\/-]+$/i", $str))
 		{
@@ -618,6 +640,7 @@ class CI_Input {
 	 * In Apache, you can simply call apache_request_headers(), however for
 	 * people running other webservers the function is undefined.
 	 *
+	 * @access	public
 	 * @param	bool XSS cleaning
 	 *
 	 * @return array
@@ -661,6 +684,7 @@ class CI_Input {
 	 *
 	 * Returns the value of a single member of the headers class member
 	 *
+	 * @access	public
 	 * @param 	string		array key for $this->headers
 	 * @param	boolean		XSS Clean or not
 	 * @return 	mixed		FALSE on failure, string on success
@@ -692,6 +716,7 @@ class CI_Input {
 	 *
 	 * Test to see if a request contains the HTTP_X_REQUESTED_WITH header
 	 *
+	 * @access	public
 	 * @return 	boolean
 	 */
 	public function is_ajax_request()
@@ -706,6 +731,7 @@ class CI_Input {
 	 *
 	 * Test to see if a request was made from the command line
 	 *
+	 * @access	public
 	 * @return 	boolean
 	 */
 	public function is_cli_request()
@@ -714,7 +740,6 @@ class CI_Input {
 	}
 
 }
-// END Input class
 
 /* End of file Input.php */
 /* Location: ./system/core/Input.php */
diff --git a/system/core/Lang.php b/system/core/Lang.php
index d61d1029a..e03afb07d 100755
--- a/system/core/Lang.php
+++ b/system/core/Lang.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Language
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/language.html
  */
 class CI_Lang {
diff --git a/system/core/Loader.php b/system/core/Loader.php
index de0fc06d2..4e14b54af 100755..100644
--- a/system/core/Loader.php
+++ b/system/core/Loader.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -22,7 +34,7 @@
  *
  * @package		CodeIgniter
  * @subpackage	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @category	Loader
  * @link		http://codeigniter.com/user_guide/libraries/loader.html
  */
@@ -616,6 +628,11 @@ class CI_Loader {
 			require BASEPATH.'libraries/Driver.php';
 		}
 
+		if ($library == '')
+		{
+			return FALSE;
+		}
+
 		// We can save the loader some time since Drivers will *always* be in a subfolder,
 		// and typically identically named to the library
 		if ( ! strpos($library, '/'))
diff --git a/system/core/Model.php b/system/core/Model.php
index e15ffbebc..c34bab64b 100755
--- a/system/core/Model.php
+++ b/system/core/Model.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/config.html
  */
 class CI_Model {
diff --git a/system/core/Output.php b/system/core/Output.php
index ccecafd2b..7b53f8e3e 100755
--- a/system/core/Output.php
+++ b/system/core/Output.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Output
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/output.html
  */
 class CI_Output {
diff --git a/system/core/Router.php b/system/core/Router.php
index 6da667472..748678d67 100755
--- a/system/core/Router.php
+++ b/system/core/Router.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -22,7 +34,7 @@
  *
  * @package		CodeIgniter
  * @subpackage	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @category	Libraries
  * @link		http://codeigniter.com/user_guide/general/routing.html
  */
diff --git a/system/core/Security.php b/system/core/Security.php
index 342455f27..ce3f7d3cc 100755
--- a/system/core/Security.php
+++ b/system/core/Security.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Security
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/security.html
  */
 class CI_Security {
@@ -33,7 +45,7 @@ class CI_Security {
 	 * @access protected
 	 */
 	protected $_xss_hash			= '';
-	
+
 	/**
 	 * Random Hash for Cross Site Request Forgery Protection Cookie
 	 *
@@ -41,7 +53,7 @@ class CI_Security {
 	 * @access protected
 	 */
 	protected $_csrf_hash			= '';
-	
+
 	/**
 	 * Expiration time for Cross Site Request Forgery Protection Cookie
 	 * Defaults to two hours (in seconds)
@@ -50,7 +62,7 @@ class CI_Security {
 	 * @access protected
 	 */
 	protected $_csrf_expire			= 7200;
-	
+
 	/**
 	 * Token name for Cross Site Request Forgery Protection Cookie
 	 *
@@ -58,7 +70,7 @@ class CI_Security {
 	 * @access protected
 	 */
 	protected $_csrf_token_name		= 'ci_csrf_token';
-	
+
 	/**
 	 * Cookie name for Cross Site Request Forgery Protection Cookie
 	 *
@@ -66,14 +78,14 @@ class CI_Security {
 	 * @access protected
 	 */
 	protected $_csrf_cookie_name	= 'ci_csrf_token';
-	
+
 	/**
 	 * List of never allowed strings
 	 *
 	 * @var array
 	 * @access protected
 	 */
-	
+
 	protected $_never_allowed_str = array(
 					'document.cookie'	=> '[removed]',
 					'document.write'	=> '[removed]',
@@ -83,7 +95,8 @@ class CI_Security {
 					'-moz-binding'		=> '[removed]',
 					'<!--'				=> '&lt;!--',
 					'-->'				=> '--&gt;',
-					'<![CDATA['			=> '&lt;![CDATA['
+					'<![CDATA['			=> '&lt;![CDATA[',
+					'<comment>'			=> '&lt;comment&gt;'
 	);
 
 	/**
@@ -139,7 +152,7 @@ class CI_Security {
 		{
 			return $this->csrf_set_cookie();
 		}
-		
+
 		// Check if URI has been whitelisted from CSRF checks
 		if ($exclude_uris = config_item('csrf_exclude_uris'))
 		{
@@ -169,11 +182,12 @@ class CI_Security {
 
 		// Nothing should last forever
 		unset($_COOKIE[$this->_csrf_cookie_name]);
+                $this->_csrf_hash = '';
 		$this->_csrf_set_hash();
 		$this->csrf_set_cookie();
-		
+
 		log_message('debug', "CSRF token verified");
-		
+
 		return $this;
 	}
 
@@ -187,7 +201,7 @@ class CI_Security {
 	public function csrf_set_cookie()
 	{
 		$expire = time() + $this->_csrf_expire;
-		$secure_cookie = (config_item('cookie_secure') === TRUE) ? 1 : 0;
+		$secure_cookie = (bool) config_item('cookie_secure');
 
 		if ($secure_cookie)
 		{
@@ -384,16 +398,11 @@ class CI_Security {
 
 		foreach ($words as $word)
 		{
-			$temp = '';
-
-			for ($i = 0, $wordlen = strlen($word); $i < $wordlen; $i++)
-			{
-				$temp .= substr($word, $i, 1)."\s*";
-			}
+			$word = implode("\s*", str_split($word)) . "\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);
+			$str = preg_replace_callback('#('.substr($word, 0, -3).')(\W)#is', array($this, '_compact_exploded_words'), $str);
 		}
 
 		/*
@@ -472,7 +481,7 @@ class CI_Security {
 
 		if ($is_image === TRUE)
 		{
-			return ($str == $converted_string) ? TRUE: FALSE;
+			return ($str === $converted_string) ? TRUE : FALSE;
 		}
 
 		log_message('debug', "XSS Filtering completed");
@@ -490,15 +499,7 @@ class CI_Security {
 	{
 		if ($this->_xss_hash == '')
 		{
-			if (phpversion() >= 4.2)
-			{
-				mt_srand();
-			}
-			else
-			{
-				mt_srand(hexdec(substr(md5(microtime()), -8)) & 0x7fffffff);
-			}
-
+			mt_srand();
 			$this->_xss_hash = md5(time() + mt_rand(0, 1999999999));
 		}
 
@@ -512,48 +513,31 @@ class CI_Security {
 	 *
 	 * 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.
+	 * 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.
 	 *
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
-	public function entity_decode($str, $charset='UTF-8')
+	public function entity_decode($str, $charset = NULL)
 	{
-		if (stristr($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'))
+		if (strpos($str, '&') === FALSE)
 		{
-			$str = html_entity_decode($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);
+			return $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)
+		if (empty($charset))
 		{
-			$str = strtr($str, array_flip(get_html_translation_table(HTML_ENTITIES)));
+			$charset = config_item('charset');
 		}
 
-		return $str;
+		$str = html_entity_decode($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);
 	}
 
 	// --------------------------------------------------------------------
@@ -647,25 +631,45 @@ class CI_Security {
 	protected function _remove_evil_attributes($str, $is_image)
 	{
 		// All javascript event handlers (e.g. onload, onclick, onmouseover), style, and xmlns
-		$evil_attributes = array('on\w*', 'style', 'xmlns');
+		$evil_attributes = array('on\w*', 'style', 'xmlns', 'formaction');
 
 		if ($is_image === TRUE)
 		{
 			/*
-			 * Adobe Photoshop puts XML metadata into JFIF images,
+			 * Adobe Photoshop puts XML metadata into JFIF images, 
 			 * including namespacing, so we have to allow this for images.
 			 */
 			unset($evil_attributes[array_search('xmlns', $evil_attributes)]);
 		}
-
+		
 		do {
-			$str = preg_replace(
-				"#<(/?[^><]+?)([^A-Za-z\-])(".implode('|', $evil_attributes).")(\s*=\s*)([\"][^>]*?[\"]|[\'][^>]*?[\']|[^>]*?)([\s><])([><]*)#i",
-				"<$1$6",
-				$str, -1, $count
-			);
-		} while ($count);
+			$count = 0;
+			$attribs = array();
+			
+			// find occurrences of illegal attribute strings without quotes
+			preg_match_all("/(".implode('|', $evil_attributes).")\s*=\s*([^\s]*)/is",  $str, $matches, PREG_SET_ORDER);
+			
+			foreach ($matches as $attr)
+			{
+				$attribs[] = preg_quote($attr[0], '/');
+			}
+			
+			// find occurrences of illegal attribute strings with quotes (042 and 047 are octal quotes)
+			preg_match_all("/(".implode('|', $evil_attributes).")\s*=\s*(\042|\047)([^\\2]*?)(\\2)/is",  $str, $matches, PREG_SET_ORDER);
+
+			foreach ($matches as $attr)
+			{
+				$attribs[] = preg_quote($attr[0], '/');
+			}
 
+			// replace illegal attribute strings that are inside an html tag
+			if (count($attribs) > 0)
+			{
+				$str = preg_replace("/<(\/?[^><]+?)([^A-Za-z\-])(".implode('|', $attribs).")([\s><])([><]*)/i", '<$1$2$4$5', $str, -1, $count);
+			}
+			
+		} while ($count);
+		
 		return $str;
 	}
 
@@ -877,7 +881,8 @@ class CI_Security {
 				return $this->_csrf_hash = $_COOKIE[$this->_csrf_cookie_name];
 			}
 
-			return $this->_csrf_hash = md5(uniqid(rand(), TRUE));
+			$this->_csrf_hash = md5(uniqid(rand(), TRUE));
+			$this->csrf_set_cookie();
 		}
 
 		return $this->_csrf_hash;
@@ -886,4 +891,4 @@ class CI_Security {
 }
 
 /* End of file Security.php */
-/* Location: ./system/libraries/Security.php */
\ No newline at end of file
+/* Location: ./system/core/Security.php */
\ No newline at end of file
diff --git a/system/core/URI.php b/system/core/URI.php
index e58bdf731..7ab3a9e56 100755
--- a/system/core/URI.php
+++ b/system/core/URI.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	URI
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/uri.html
  */
 class CI_URI {
diff --git a/system/core/Utf8.php b/system/core/Utf8.php
index 2a27d1f35..7abe4e43b 100644
--- a/system/core/Utf8.php
+++ b/system/core/Utf8.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	UTF-8
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/utf8.html
  */
 class CI_Utf8 {
diff --git a/system/database/DB.php b/system/database/DB.php
index 8314d3b97..5c90f44f3 100755
--- a/system/database/DB.php
+++ b/system/database/DB.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * Initialize the database
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  * @param 	string
  * @param 	bool	Determines if active record should be used or not
diff --git a/system/database/DB_active_rec.php b/system/database/DB_active_rec.php
index 4b159b031..5c4284ff2 100644
--- a/system/database/DB_active_rec.php
+++ b/system/database/DB_active_rec.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,44 +35,47 @@
  * @package		CodeIgniter
  * @subpackage	Drivers
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_active_record extends CI_DB_driver {
 
-	var $ar_select				= array();
-	var $ar_distinct			= FALSE;
-	var $ar_from				= array();
-	var $ar_join				= array();
-	var $ar_where				= array();
-	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_wherein				= array();
-	var $ar_aliased_tables		= array();
-	var $ar_store_array			= array();
+	protected $return_delete_sql	= FALSE;
+	protected $reset_delete_data	= FALSE;
+	
+	protected $ar_select			= array();
+	protected $ar_distinct			= FALSE;
+	protected $ar_from				= array();
+	protected $ar_join				= array();
+	protected $ar_where				= array();
+	protected $ar_like				= array();
+	protected $ar_groupby			= array();
+	protected $ar_having			= array();
+	protected $ar_keys				= array();
+	protected $ar_limit				= FALSE;
+	protected $ar_offset			= FALSE;
+	protected $ar_order				= FALSE;
+	protected $ar_orderby			= array();
+	protected $ar_set				= array();
+	protected $ar_wherein			= array();
+	protected $ar_aliased_tables	= array();
+	protected $ar_store_array		= array();
 
 	// Active Record Caching variables
-	var $ar_caching				= FALSE;
-	var $ar_cache_exists		= array();
-	var $ar_cache_select		= array();
-	var $ar_cache_from			= array();
-	var $ar_cache_join			= array();
-	var $ar_cache_where			= array();
-	var $ar_cache_like			= array();
-	var $ar_cache_groupby		= array();
-	var $ar_cache_having		= array();
-	var $ar_cache_orderby		= array();
-	var $ar_cache_set			= array();
+	protected $ar_caching			= FALSE;
+	protected $ar_cache_exists		= array();
+	protected $ar_cache_select		= array();
+	protected $ar_cache_from		= array();
+	protected $ar_cache_join		= array();
+	protected $ar_cache_where		= array();
+	protected $ar_cache_like		= array();
+	protected $ar_cache_groupby		= array();
+	protected $ar_cache_having		= array();
+	protected $ar_cache_orderby		= array();
+	protected $ar_cache_set			= array();
 	
-	var $ar_no_escape 			= array();
-	var $ar_cache_no_escape     = array();
+	protected $ar_no_escape 		= array();
+	protected $ar_cache_no_escape    = array();
 
 	// --------------------------------------------------------------------
 
@@ -196,7 +211,7 @@ class CI_DB_active_record extends CI_DB_driver {
 			$alias = $this->_create_alias_from_table(trim($select));
 		}
 
-		$sql = $type.'('.$this->_protect_identifiers(trim($select)).') AS '.$this->_protect_identifiers(trim($alias));
+		$sql = $this->_protect_identifiers($type.'('.trim($select).')').' AS '.$this->_protect_identifiers(trim($alias));
 
 		$this->ar_select[] = $sql;
 		$this->ar_no_escape[] = NULL;
@@ -661,7 +676,7 @@ class CI_DB_active_record extends CI_DB_driver {
 			$prefix = (count($this->ar_like) == 0) ? '' : $type;
 
 			$v = $this->escape_like_str($v);
-			
+
 			if ($side == 'none')
 			{
 				$like_statement = $prefix." $k $not LIKE '{$v}'";
@@ -873,11 +888,11 @@ class CI_DB_active_record extends CI_DB_driver {
 	 * @param	integer	the offset value
 	 * @return	object
 	 */
-	public function limit($value, $offset = '')
+	public function limit($value, $offset = NULL)
 	{
 		$this->ar_limit = (int) $value;
 
-		if ($offset != '')
+		if ( ! is_null($offset))
 		{
 			$this->ar_offset = (int) $offset;
 		}
@@ -895,7 +910,7 @@ class CI_DB_active_record extends CI_DB_driver {
 	 */
 	public function offset($offset)
 	{
-		$this->ar_offset = $offset;
+		$this->ar_offset = (int) $offset;
 		return $this;
 	}
 
@@ -932,7 +947,37 @@ class CI_DB_active_record extends CI_DB_driver {
 
 		return $this;
 	}
+	
+	// --------------------------------------------------------------------
 
+	/**
+	 * Get SELECT query string
+	 *
+	 * Compiles a SELECT query string and returns the sql.
+	 *
+	 * @access	public
+	 * @param	string	the table name to select from (optional)
+	 * @param	boolean	TRUE: resets AR values; FALSE: leave AR vaules alone
+	 * @return	string
+	 */
+	public function get_compiled_select($table = '', $reset = TRUE) 
+	{
+		if ($table != '')
+		{
+			$this->_track_aliases($table);
+			$this->from($table);
+		}
+		
+		$select =  $this->_compile_select();
+		
+		if ($reset === TRUE)
+		{
+			$this->_reset_select();
+		}
+		
+		return $select;
+	}
+	
 	// --------------------------------------------------------------------
 
 	/**
@@ -1149,6 +1194,41 @@ class CI_DB_active_record extends CI_DB_driver {
 
 		return $this;
 	}
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Get INSERT query string
+	 *
+	 * Compiles an insert query and returns the sql
+	 *
+	 * @access	public
+	 * @param	string	the table to insert into
+	 * @param	boolean	TRUE: reset AR values; FALSE: leave AR values alone
+	 * @return	string
+	 */
+	public function get_compiled_insert($table = '', $reset = TRUE)
+	{	
+		if ($this->_validate_insert($table) === FALSE)
+		{
+			return FALSE;
+		}
+		
+		$sql = $this->_insert(
+			$this->_protect_identifiers(
+				$this->ar_from[0], TRUE, NULL, FALSE
+			),
+			array_keys($this->ar_set), 
+			array_values($this->ar_set)
+		);
+		
+		if ($reset === TRUE)
+		{
+			$this->_reset_write();
+		}
+		
+		return $sql;
+	}
 
 	// --------------------------------------------------------------------
 
@@ -1157,17 +1237,50 @@ class CI_DB_active_record extends CI_DB_driver {
 	 *
 	 * Compiles an insert string and runs the query
 	 *
+	 * @access	public
 	 * @param	string	the table to insert data into
 	 * @param	array	an associative array of insert values
 	 * @return	object
 	 */
-	function insert($table = '', $set = NULL)
+	public function insert($table = '', $set = NULL)
 	{
 		if ( ! is_null($set))
 		{
 			$this->set($set);
 		}
+		
+		if ($this->_validate_insert($table) === FALSE)
+		{
+			return FALSE;
+		}
+		
+		$sql = $this->_insert(
+			$this->_protect_identifiers(
+				$this->ar_from[0], TRUE, NULL, FALSE
+			), 
+			array_keys($this->ar_set), 
+			array_values($this->ar_set)
+		);
 
+		$this->_reset_write();
+		return $this->query($sql);
+	}
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Validate Insert
+	 *
+	 * This method is used by both insert() and get_compiled_insert() to
+	 * validate that the there data is actually being set and that table
+	 * has been chosen to be inserted into.
+	 *
+	 * @access	public
+	 * @param	string	the table to insert data into
+	 * @return	string
+	 */
+	protected function _validate_insert($table = '') 
+	{
 		if (count($this->ar_set) == 0)
 		{
 			if ($this->db_debug)
@@ -1187,14 +1300,13 @@ 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);
+		else
+		{
+			$this->ar_from[0] = $table;
+		}
+		
+		return TRUE;
 	}
 
 	// --------------------------------------------------------------------
@@ -1243,7 +1355,39 @@ class CI_DB_active_record extends CI_DB_driver {
 		$this->_reset_write();
 		return $this->query($sql);
 	}
+	
+	// --------------------------------------------------------------------
 
+	/**
+	 * Get UPDATE query string
+	 *
+	 * Compiles an update query and returns the sql
+	 *
+	 * @access	public
+	 * @param	string	the table to update
+	 * @param	boolean	TRUE: reset AR values; FALSE: leave AR values alone
+	 * @return	string
+	 */
+	public function get_compiled_update($table = '', $reset = TRUE)
+	{
+		// Combine any cached components with the current statements
+		$this->_merge_cache();
+	
+		if ($this->_validate_update($table) === FALSE)
+		{
+			return FALSE;
+		}
+		
+		$sql = $this->_update($this->_protect_identifiers($this->ar_from[0], TRUE, NULL, FALSE), $this->ar_set, $this->ar_where, $this->ar_orderby, $this->ar_limit);
+		
+		if ($reset === TRUE)
+		{
+			$this->_reset_write();
+		}
+		
+		return $sql;
+	}
+	
 	// --------------------------------------------------------------------
 
 	/**
@@ -1266,6 +1410,42 @@ class CI_DB_active_record extends CI_DB_driver {
 			$this->set($set);
 		}
 
+		if ($this->_validate_update($table) === FALSE)
+		{
+			return FALSE;
+		}
+
+		if ($where != NULL)
+		{
+			$this->where($where);
+		}
+
+		if ($limit != NULL)
+		{
+			$this->limit($limit);
+		}
+
+		$sql = $this->_update($this->_protect_identifiers($this->ar_from[0], TRUE, NULL, FALSE), $this->ar_set, $this->ar_where, $this->ar_orderby, $this->ar_limit);
+
+		$this->_reset_write();
+		return $this->query($sql);
+	}
+		
+	// --------------------------------------------------------------------
+
+	/**
+	 * Validate Update
+	 *
+	 * This method is used by both update() and get_compiled_update() to
+	 * validate that data is actually being set and that a table has been
+	 * chosen to be update.
+	 *
+	 * @access	public
+	 * @param	string	the table to update data on
+	 * @return	string
+	 */
+	protected function _validate_update($table = '')
+	{
 		if (count($this->ar_set) == 0)
 		{
 			if ($this->db_debug)
@@ -1285,27 +1465,13 @@ class CI_DB_active_record extends CI_DB_driver {
 				}
 				return FALSE;
 			}
-
-			$table = $this->ar_from[0];
-		}
-
-		if ($where != NULL)
-		{
-			$this->where($where);
 		}
-
-		if ($limit != NULL)
+		else
 		{
-			$this->limit($limit);
+			$this->ar_from[0] = $table;
 		}
-
-		$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);
 	}
-
-
+	
 	// --------------------------------------------------------------------
 
 	/**
@@ -1504,7 +1670,27 @@ class CI_DB_active_record extends CI_DB_driver {
 
 		return $this->query($sql);
 	}
+	
+	// --------------------------------------------------------------------
 
+	/**
+	 * Get DELETE query string
+	 *
+	 * Compiles a delete query string and returns the sql
+	 *
+	 * @access	public
+	 * @param	string	the table to delete from
+	 * @param	boolean	TRUE: reset AR values; FALSE: leave AR values alone
+	 * @return	string
+	 */
+	public function get_compiled_delete($table = '', $reset = TRUE)
+	{
+		$this->return_delete_sql = TRUE;
+		$sql = $this->delete($table, '', NULL, $reset);
+		$this->return_delete_sql = FALSE;
+		return $sql;
+	}
+	
 	// --------------------------------------------------------------------
 
 	/**
@@ -1577,10 +1763,15 @@ class CI_DB_active_record extends CI_DB_driver {
 		{
 			$this->_reset_write();
 		}
+		
+		if ($this->return_delete_sql === true)
+		{
+			return $sql;
+		}
 
 		return $this->query($sql);
 	}
-
+	
 	// --------------------------------------------------------------------
 
 	/**
@@ -1660,7 +1851,7 @@ class CI_DB_active_record extends CI_DB_driver {
 			}
 		}
 	}
-
+	
 	// --------------------------------------------------------------------
 
 	/**
@@ -1966,6 +2157,22 @@ class CI_DB_active_record extends CI_DB_driver {
 
 		$this->ar_no_escape = $this->ar_cache_no_escape;
 	}
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Reset Active Record values.
+	 * 
+	 * Publicly-visible method to reset the AR values.
+	 *
+	 * @access	public
+	 * @return	void
+	 */
+	public function reset_query()
+	{
+		$this->_reset_select();
+		$this->_reset_write();
+	}
 
 	// --------------------------------------------------------------------
 
diff --git a/system/database/DB_cache.php b/system/database/DB_cache.php
index 3bf065ca5..6c1ffc0f3 100644
--- a/system/database/DB_cache.php
+++ b/system/database/DB_cache.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * Database Cache Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_Cache {
@@ -33,7 +45,7 @@ class CI_DB_Cache {
 	 * Grabs the CI super object instance so we can access it.
 	 *
 	 */
-	function CI_DB_Cache(&$db)
+	function __construct(&$db)
 	{
 		// Assign the main CI object to $this->CI
 		// and load the file helper since we use it a lot
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index f3e824daa..cc40ba48a 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -25,7 +37,7 @@
  * @package		CodeIgniter
  * @subpackage	Drivers
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_driver {
@@ -78,7 +90,7 @@ class CI_DB_driver {
 	 *
 	 * @param array
 	 */
-	function CI_DB_driver($params)
+	function __construct($params)
 	{
 		if (is_array($params))
 		{
@@ -218,7 +230,7 @@ class CI_DB_driver {
 
 		// 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', 'cubrid');
+		$driver_version_exceptions = array('oci8', 'sqlite', 'cubrid', 'pdo');
 
 		if (in_array($this->dbdriver, $driver_version_exceptions))
 		{
@@ -251,9 +263,10 @@ class CI_DB_driver {
 	{
 		if ($sql == '')
 		{
+			log_message('error', 'Invalid query: '.$sql);
+
 			if ($this->db_debug)
 			{
-				log_message('error', 'Invalid query: '.$sql);
 				return $this->display_error('db_invalid_query');
 			}
 			return FALSE;
@@ -306,21 +319,23 @@ class CI_DB_driver {
 			// This will trigger a rollback if transactions are being used
 			$this->_trans_status = FALSE;
 
+			// Grab the error number and message now, as we might run some
+			// additional queries before displaying the error
+			$error_no = $this->_error_number();
+			$error_msg = $this->_error_message();
+
+			// Log errors
+			log_message('error', 'Query error: '.$error_msg);
+
 			if ($this->db_debug)
 			{
-				// grab the error number and message now, as we might run some
-				// 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
 				// transactions to remain in limbo.
 				$this->trans_complete();
 
-				// Log and display errors
-				log_message('error', 'Query error: '.$error_msg);
+				// Display errors
 				return $this->display_error(
 										array(
 												'Error Number: '.$error_no,
@@ -507,6 +522,7 @@ class CI_DB_driver {
 		}
 
 		$this->trans_begin($test_mode);
+		$this->_trans_depth += 1;
 	}
 
 	// --------------------------------------------------------------------
@@ -530,6 +546,10 @@ class CI_DB_driver {
 			$this->_trans_depth -= 1;
 			return TRUE;
 		}
+		else
+		{
+			$this->_trans_depth = 0;
+		}
 
 		// The query() function will set this flag to FALSE in the event that a query failed
 		if ($this->_trans_status === FALSE)
@@ -947,6 +967,7 @@ class CI_DB_driver {
 			foreach ($where as $key => $val)
 			{
 				$prefix = (count($dest) == 0) ? '' : ' AND ';
+				$key = $this->_protect_identifiers($key);
 
 				if ($val !== '')
 				{
@@ -1162,7 +1183,7 @@ class CI_DB_driver {
 
 		if ($native == TRUE)
 		{
-			$message = $error;
+			$message = (array) $error;
 		}
 		else
 		{
@@ -1387,4 +1408,4 @@ class CI_DB_driver {
 
 
 /* End of file DB_driver.php */
-/* Location: ./system/database/DB_driver.php */
\ No newline at end of file
+/* Location: ./system/database/DB_driver.php */
diff --git a/system/database/DB_forge.php b/system/database/DB_forge.php
index 0dd29c238..1aa2334ea 100644
--- a/system/database/DB_forge.php
+++ b/system/database/DB_forge.php
@@ -1,13 +1,25 @@
 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
- * Code Igniter
+ * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * Database Utility Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_forge {
@@ -35,7 +47,7 @@ class CI_DB_forge {
 	 * Grabs the CI super object instance so we can access it.
 	 *
 	 */
-	function CI_DB_forge()
+	function __construct()
 	{
 		// Assign the main database object to $this->db
 		$CI =& get_instance();
diff --git a/system/database/DB_result.php b/system/database/DB_result.php
index 0c4e78105..9f0b0187c 100644
--- a/system/database/DB_result.php
+++ b/system/database/DB_result.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * class for the specific database will extend and instantiate it.
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_result {
@@ -45,7 +57,7 @@ class CI_DB_result {
 	 * @param	string	can be "object" or "array"
 	 * @return	mixed	either a result object or array
 	 */
-	function result($type = 'object')
+	public function result($type = 'object')
 	{
 		if ($type == 'array') return $this->result_array();
 		else if ($type == 'object') return $this->result_object();
@@ -60,7 +72,7 @@ class CI_DB_result {
 	 * @param class_name A string that represents the type of object you want back
 	 * @return array of objects
 	 */
-	function custom_result_object($class_name)
+	public function custom_result_object($class_name)
 	{
 		if (array_key_exists($class_name, $this->custom_result_object))
 		{
@@ -79,12 +91,12 @@ class CI_DB_result {
 		while ($row = $this->_fetch_object())
 		{
 			$object = new $class_name();
-			
+
 			foreach ($row as $key => $value)
 			{
 				$object->$key = $value;
 			}
-			
+
 			$result_object[] = $object;
 		}
 
@@ -100,7 +112,7 @@ class CI_DB_result {
 	 * @access	public
 	 * @return	object
 	 */
-	function result_object()
+	public function result_object()
 	{
 		if (count($this->result_object) > 0)
 		{
@@ -132,7 +144,7 @@ class CI_DB_result {
 	 * @access	public
 	 * @return	array
 	 */
-	function result_array()
+	public function result_array()
 	{
 		if (count($this->result_array) > 0)
 		{
@@ -166,7 +178,7 @@ class CI_DB_result {
 	 * @param	string	can be "object" or "array"
 	 * @return	mixed	either a result object or array
 	 */
-	function row($n = 0, $type = 'object')
+	public function row($n = 0, $type = 'object')
 	{
 		if ( ! is_numeric($n))
 		{
@@ -198,7 +210,7 @@ class CI_DB_result {
 	 * @access	public
 	 * @return	object
 	 */
-	function set_row($key, $value = NULL)
+	public function set_row($key, $value = NULL)
 	{
 		// We cache the row data for subsequent uses
 		if ( ! is_array($this->row_data))
@@ -230,7 +242,7 @@ class CI_DB_result {
 	 * @access	public
 	 * @return	object
 	 */
-	function custom_row_object($n, $type)
+	public function custom_row_object($n, $type)
 	{
 		$result = $this->custom_result_object($type);
 
@@ -253,7 +265,7 @@ class CI_DB_result {
 	 * @access	public
 	 * @return	object
 	 */
-	function row_object($n = 0)
+	public function row_object($n = 0)
 	{
 		$result = $this->result_object();
 
@@ -278,7 +290,7 @@ class CI_DB_result {
 	 * @access	public
 	 * @return	array
 	 */
-	function row_array($n = 0)
+	public function row_array($n = 0)
 	{
 		$result = $this->result_array();
 
@@ -304,7 +316,7 @@ class CI_DB_result {
 	 * @access	public
 	 * @return	object
 	 */
-	function first_row($type = 'object')
+	public function first_row($type = 'object')
 	{
 		$result = $this->result($type);
 
@@ -323,7 +335,7 @@ class CI_DB_result {
 	 * @access	public
 	 * @return	object
 	 */
-	function last_row($type = 'object')
+	public function last_row($type = 'object')
 	{
 		$result = $this->result($type);
 
@@ -342,7 +354,7 @@ class CI_DB_result {
 	 * @access	public
 	 * @return	object
 	 */
-	function next_row($type = 'object')
+	public function next_row($type = 'object')
 	{
 		$result = $this->result($type);
 
@@ -367,7 +379,7 @@ class CI_DB_result {
 	 * @access	public
 	 * @return	object
 	 */
-	function previous_row($type = 'object')
+	public function previous_row($type = 'object')
 	{
 		$result = $this->result($type);
 
@@ -394,14 +406,14 @@ class CI_DB_result {
 	 * operational due to the unavailability of the database resource IDs with
 	 * cached results.
 	 */
-	function num_rows() { return $this->num_rows; }
-	function num_fields() { return 0; }
-	function list_fields() { return array(); }
-	function field_data() { return array(); }
-	function free_result() { return TRUE; }
-	function _data_seek() { return TRUE; }
-	function _fetch_assoc() { return array(); }
-	function _fetch_object() { return array(); }
+	public function num_rows() { return $this->num_rows; }
+	public function num_fields() { return 0; }
+	public function list_fields() { return array(); }
+	public function field_data() { return array(); }
+	public function free_result() { return TRUE; }
+	protected function _data_seek() { return TRUE; }
+	protected function _fetch_assoc() { return array(); }
+	protected function _fetch_object() { return array(); }
 
 }
 // END DB_result class
diff --git a/system/database/DB_utility.php b/system/database/DB_utility.php
index a5f174f0a..60ecb5269 100644
--- a/system/database/DB_utility.php
+++ b/system/database/DB_utility.php
@@ -1,13 +1,25 @@
 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
- * Code Igniter
+ * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * Database Utility Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_utility extends CI_DB_forge {
@@ -33,7 +45,7 @@ class CI_DB_utility extends CI_DB_forge {
 	 * Grabs the CI super object instance so we can access it.
 	 *
 	 */
-	function CI_DB_utility()
+	function __construct()
 	{
 		// Assign the main database object to $this->db
 		$CI =& get_instance();
diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php
index d01140412..8181bd605 100644
--- a/system/database/drivers/cubrid/cubrid_driver.php
+++ b/system/database/drivers/cubrid/cubrid_driver.php
@@ -1,13 +1,25 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		Esen Sagynov
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0.2
  * @filesource
diff --git a/system/database/drivers/cubrid/cubrid_forge.php b/system/database/drivers/cubrid/cubrid_forge.php
index bab03f748..410d0652c 100644
--- a/system/database/drivers/cubrid/cubrid_forge.php
+++ b/system/database/drivers/cubrid/cubrid_forge.php
@@ -1,13 +1,25 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		Esen Sagynov
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
diff --git a/system/database/drivers/cubrid/cubrid_result.php b/system/database/drivers/cubrid/cubrid_result.php
index 6f0c2b5f7..b2f1bcf71 100644
--- a/system/database/drivers/cubrid/cubrid_result.php
+++ b/system/database/drivers/cubrid/cubrid_result.php
@@ -1,13 +1,25 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		Esen Sagynov
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0.2
  * @filesource
diff --git a/system/database/drivers/cubrid/cubrid_utility.php b/system/database/drivers/cubrid/cubrid_utility.php
index cd16d1e18..1fa0390a8 100644
--- a/system/database/drivers/cubrid/cubrid_utility.php
+++ b/system/database/drivers/cubrid/cubrid_utility.php
@@ -1,13 +1,25 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		Esen Sagynov
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php
index b39bd9360..87e7c9d37 100644
--- a/system/database/drivers/mssql/mssql_driver.php
+++ b/system/database/drivers/mssql/mssql_driver.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -25,7 +37,7 @@
  * @package		CodeIgniter
  * @subpackage	Drivers
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mssql_driver extends CI_DB {
diff --git a/system/database/drivers/mssql/mssql_forge.php b/system/database/drivers/mssql/mssql_forge.php
index 70b20ecf8..0a893f68f 100644
--- a/system/database/drivers/mssql/mssql_forge.php
+++ b/system/database/drivers/mssql/mssql_forge.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * MS SQL Forge Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mssql_forge extends CI_DB_forge {
diff --git a/system/database/drivers/mssql/mssql_result.php b/system/database/drivers/mssql/mssql_result.php
index 2897ca5a5..a8cd7c982 100644
--- a/system/database/drivers/mssql/mssql_result.php
+++ b/system/database/drivers/mssql/mssql_result.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * This class extends the parent result class: CI_DB_result
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mssql_result extends CI_DB_result {
diff --git a/system/database/drivers/mssql/mssql_utility.php b/system/database/drivers/mssql/mssql_utility.php
index 48ecbc72a..576d13f86 100644
--- a/system/database/drivers/mssql/mssql_utility.php
+++ b/system/database/drivers/mssql/mssql_utility.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * MS SQL Utility Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mssql_utility extends CI_DB_utility {
diff --git a/system/database/drivers/mysql/mysql_driver.php b/system/database/drivers/mysql/mysql_driver.php
index f87cfea4b..828ef006b 100644
--- a/system/database/drivers/mysql/mysql_driver.php
+++ b/system/database/drivers/mysql/mysql_driver.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -25,7 +37,7 @@
  * @package		CodeIgniter
  * @subpackage	Drivers
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysql_driver extends CI_DB {
@@ -56,7 +68,7 @@ class CI_DB_mysql_driver extends CI_DB {
 
 	// whether SET NAMES must be used to set the character set
 	var $use_set_names;
-	
+
 	/**
 	 * Non-persistent database connection
 	 *
@@ -135,20 +147,9 @@ class CI_DB_mysql_driver extends CI_DB {
 	 */
 	function db_set_charset($charset, $collation)
 	{
-		if ( ! isset($this->use_set_names))
-		{
-			// mysql_set_charset() requires PHP >= 5.2.3 and MySQL >= 5.0.7, use SET NAMES as fallback
-			$this->use_set_names = (version_compare(PHP_VERSION, '5.2.3', '>=') && version_compare(mysql_get_server_info(), '5.0.7', '>=')) ? FALSE : TRUE;
-		}
-
-		if ($this->use_set_names === TRUE)
-		{
-			return @mysql_query("SET NAMES '".$this->escape_str($charset)."' COLLATE '".$this->escape_str($collation)."'", $this->conn_id);
-		}
-		else
-		{
-			return @mysql_set_charset($charset, $this->conn_id);
-		}
+		return function_exists('mysql_set_charset')
+			? @mysql_set_charset($charset, $this->conn_id)
+			: @mysql_query("SET NAMES '".$this->escape_str($charset)."' COLLATE '".$this->escape_str($collation)."'", $this->conn_id);
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/mysql/mysql_forge.php b/system/database/drivers/mysql/mysql_forge.php
index c1cae136c..89aaf5de3 100644
--- a/system/database/drivers/mysql/mysql_forge.php
+++ b/system/database/drivers/mysql/mysql_forge.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * MySQL Forge Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysql_forge extends CI_DB_forge {
diff --git a/system/database/drivers/mysql/mysql_result.php b/system/database/drivers/mysql/mysql_result.php
index 2d2905c98..29297b6a4 100644
--- a/system/database/drivers/mysql/mysql_result.php
+++ b/system/database/drivers/mysql/mysql_result.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * This class extends the parent result class: CI_DB_result
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysql_result extends CI_DB_result {
@@ -86,10 +98,10 @@ class CI_DB_mysql_result extends CI_DB_result {
 		$retval = array();
 		while ($field = mysql_fetch_object($this->result_id))
 		{
-			preg_match('/([a-zA-Z]+)\((\d+)\)/', $field->Type, $matches);
+			preg_match('/([a-zA-Z]+)(\(\d+\))?/', $field->Type, $matches);
 
-			$type = $matches[1];
-			$length = (int)$matches[2];
+			$type = (array_key_exists(1, $matches)) ? $matches[1] : NULL;
+			$length = (array_key_exists(2, $matches)) ? preg_replace('/[^\d]/', '', $matches[2]) : NULL;
 
 			$F				= new stdClass();
 			$F->name		= $field->Field;
diff --git a/system/database/drivers/mysql/mysql_utility.php b/system/database/drivers/mysql/mysql_utility.php
index 48c4d6316..9cb6645eb 100644
--- a/system/database/drivers/mysql/mysql_utility.php
+++ b/system/database/drivers/mysql/mysql_utility.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * MySQL Utility Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysql_utility extends CI_DB_utility {
diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php
index ccd110f79..fb5953bd7 100644
--- a/system/database/drivers/mysqli/mysqli_driver.php
+++ b/system/database/drivers/mysqli/mysqli_driver.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -25,7 +37,7 @@
  * @package		CodeIgniter
  * @subpackage	Drivers
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysqli_driver extends CI_DB {
@@ -56,7 +68,7 @@ class CI_DB_mysqli_driver extends CI_DB {
 
 	// whether SET NAMES must be used to set the character set
 	var $use_set_names;
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -135,20 +147,9 @@ class CI_DB_mysqli_driver extends CI_DB {
 	 */
 	function _db_set_charset($charset, $collation)
 	{
-		if ( ! isset($this->use_set_names))
-		{
-			// mysqli_set_charset() requires MySQL >= 5.0.7, use SET NAMES as fallback
-			$this->use_set_names = (version_compare(mysqli_get_server_info($this->conn_id), '5.0.7', '>=')) ? FALSE : TRUE;
-		}
-
-		if ($this->use_set_names === TRUE)
-		{
-			return @mysqli_query($this->conn_id, "SET NAMES '".$this->escape_str($charset)."' COLLATE '".$this->escape_str($collation)."'");
-		}
-		else
-		{
-			return @mysqli_set_charset($this->conn_id, $charset);
-		}
+		return function_exists('mysqli_set_charset')
+			? @mysqli_set_charset($this->conn_id, $charset)
+			: @mysqli_query($this->conn_id, "SET NAMES '".$this->escape_str($charset)."' COLLATE '".$this->escape_str($collation)."'");
 	}
 
 	// --------------------------------------------------------------------
@@ -570,6 +571,25 @@ class CI_DB_mysqli_driver extends CI_DB {
 	{
 		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).")";
+	}
 	
 	// --------------------------------------------------------------------
 
diff --git a/system/database/drivers/mysqli/mysqli_forge.php b/system/database/drivers/mysqli/mysqli_forge.php
index 260549457..cdd5399f2 100644
--- a/system/database/drivers/mysqli/mysqli_forge.php
+++ b/system/database/drivers/mysqli/mysqli_forge.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * MySQLi Forge Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysqli_forge extends CI_DB_forge {
diff --git a/system/database/drivers/mysqli/mysqli_result.php b/system/database/drivers/mysqli/mysqli_result.php
index ac863056a..163788b6c 100644
--- a/system/database/drivers/mysqli/mysqli_result.php
+++ b/system/database/drivers/mysqli/mysqli_result.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * This class extends the parent result class: CI_DB_result
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysqli_result extends CI_DB_result {
@@ -86,10 +98,10 @@ class CI_DB_mysqli_result extends CI_DB_result {
 		$retval = array();
 		while ($field = mysqli_fetch_object($this->result_id))
 		{
-			preg_match('/([a-zA-Z]+)\((\d+)\)/', $field->Type, $matches);
+			preg_match('/([a-zA-Z]+)(\(\d+\))?/', $field->Type, $matches);
 
-			$type = $matches[1];
-			$length = (int)$matches[2];
+			$type = (array_key_exists(1, $matches)) ? $matches[1] : NULL;
+			$length = (array_key_exists(2, $matches)) ? preg_replace('/[^\d]/', '', $matches[2]) : NULL;
 
 			$F				= new stdClass();
 			$F->name		= $field->Field;
diff --git a/system/database/drivers/mysqli/mysqli_utility.php b/system/database/drivers/mysqli/mysqli_utility.php
index e17889b8c..ef7c89fab 100644
--- a/system/database/drivers/mysqli/mysqli_utility.php
+++ b/system/database/drivers/mysqli/mysqli_utility.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * MySQLi Utility Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_mysqli_utility extends CI_DB_utility {
diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index d4adfd528..190b86bb2 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -25,7 +37,7 @@
  * @package		CodeIgniter
  * @subpackage  Drivers
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 
@@ -35,8 +47,6 @@
  * This is a modification of the DB_driver class to
  * permit access to oracle databases
  *
- * NOTE: this uses the PHP 4 oci methods
- *
  * @author	  Kelly McArdle
  *
  */
@@ -77,9 +87,9 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access  private called by the base class
 	 * @return  resource
 	 */
-	function db_connect()
+	public function db_connect()
 	{
-		return @ocilogon($this->username, $this->password, $this->hostname);
+		return @oci_connect($this->username, $this->password, $this->hostname, $this->char_set);
 	}
 
 	// --------------------------------------------------------------------
@@ -90,9 +100,9 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access  private called by the base class
 	 * @return  resource
 	 */
-	function db_pconnect()
+	public function db_pconnect()
 	{
-		return @ociplogon($this->username, $this->password, $this->hostname);
+		return @oci_pconnect($this->username, $this->password, $this->hostname, $this->char_set);
 	}
 
 	// --------------------------------------------------------------------
@@ -106,9 +116,10 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access	public
 	 * @return	void
 	 */
-	function reconnect()
+	public function reconnect()
 	{
 		// not implemented in oracle
+		return;
 	}
 
 	// --------------------------------------------------------------------
@@ -119,8 +130,9 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access  private called by the base class
 	 * @return  resource
 	 */
-	function db_select()
+	public function db_select()
 	{
+		// Not in Oracle - schemas are actually usernames
 		return TRUE;
 	}
 
@@ -134,9 +146,9 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @param	string
 	 * @return	resource
 	 */
-	function db_set_charset($charset, $collation)
+	public function db_set_charset($charset, $collation)
 	{
-		// @todo - add support if needed
+		// this is done upon connect
 		return TRUE;
 	}
 
@@ -145,12 +157,12 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Version number query string
 	 *
-	 * @access  public
+	 * @access  protected
 	 * @return  string
 	 */
-	function _version()
+	protected function _version()
 	{
-		return ociserverversion($this->conn_id);
+		return oci_server_version($this->conn_id);
 	}
 
 	// --------------------------------------------------------------------
@@ -158,18 +170,18 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Execute the query
 	 *
-	 * @access  private called by the base class
+	 * @access  protected  called by the base class
 	 * @param   string  an SQL query
 	 * @return  resource
 	 */
-	function _execute($sql)
+	protected function _execute($sql)
 	{
 		// oracle must parse the query before it is run. All of the actions with
 		// the query are based on the statement id returned by ociparse
 		$this->stmt_id = FALSE;
 		$this->_set_stmt_id($sql);
-		ocisetprefetch($this->stmt_id, 1000);
-		return @ociexecute($this->stmt_id, $this->_commit);
+		oci_set_prefetch($this->stmt_id, 1000);
+		return @oci_execute($this->stmt_id, $this->_commit);
 	}
 
 	/**
@@ -179,11 +191,11 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @param   string  an SQL query
 	 * @return  none
 	 */
-	function _set_stmt_id($sql)
+	private function _set_stmt_id($sql)
 	{
 		if ( ! is_resource($this->stmt_id))
 		{
-			$this->stmt_id = ociparse($this->conn_id, $this->_prep_query($sql));
+			$this->stmt_id = oci_parse($this->conn_id, $this->_prep_query($sql));
 		}
 	}
 
@@ -198,7 +210,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @param   string  an SQL query
 	 * @return  string
 	 */
-	function _prep_query($sql)
+	private function _prep_query($sql)
 	{
 		return $sql;
 	}
@@ -211,9 +223,9 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access  public
 	 * @return  cursor id
 	 */
-	function get_cursor()
+	public function get_cursor()
 	{
-		$this->curs_id = ocinewcursor($this->conn_id);
+		$this->curs_id = oci_new_cursor($this->conn_id);
 		return $this->curs_id;
 	}
 
@@ -237,7 +249,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * type		yes		the type of the parameter
 	 * length	yes		the max size of the parameter
 	 */
-	function stored_procedure($package, $procedure, $params)
+	public function stored_procedure($package, $procedure, $params)
 	{
 		if ($package == '' OR $procedure == '' OR ! is_array($params))
 		{
@@ -257,7 +269,7 @@ class CI_DB_oci8_driver extends CI_DB {
 		{
 			$sql .= $param['name'] . ",";
 
-			if (array_key_exists('type', $param) && ($param['type'] == OCI_B_CURSOR))
+			if (array_key_exists('type', $param) && ($param['type'] === OCI_B_CURSOR))
 			{
 				$have_cursor = TRUE;
 			}
@@ -278,7 +290,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access  private
 	 * @return  none
 	 */
-	function _bind_params($params)
+	private function _bind_params($params)
 	{
 		if ( ! is_array($params) OR ! is_resource($this->stmt_id))
 		{
@@ -295,7 +307,7 @@ class CI_DB_oci8_driver extends CI_DB {
 				}
 			}
 
-			ocibindbyname($this->stmt_id, $param['name'], $param['value'], $param['length'], $param['type']);
+			oci_bind_by_name($this->stmt_id, $param['name'], $param['value'], $param['length'], $param['type']);
 		}
 	}
 
@@ -307,7 +319,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access	public
 	 * @return	bool
 	 */
-	function trans_begin($test_mode = FALSE)
+	public function trans_begin($test_mode = FALSE)
 	{
 		if ( ! $this->trans_enabled)
 		{
@@ -337,7 +349,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access	public
 	 * @return	bool
 	 */
-	function trans_commit()
+	public function trans_commit()
 	{
 		if ( ! $this->trans_enabled)
 		{
@@ -350,7 +362,7 @@ class CI_DB_oci8_driver extends CI_DB {
 			return TRUE;
 		}
 
-		$ret = OCIcommit($this->conn_id);
+		$ret = oci_commit($this->conn_id);
 		$this->_commit = OCI_COMMIT_ON_SUCCESS;
 		return $ret;
 	}
@@ -363,7 +375,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access	public
 	 * @return	bool
 	 */
-	function trans_rollback()
+	public function trans_rollback()
 	{
 		if ( ! $this->trans_enabled)
 		{
@@ -376,7 +388,7 @@ class CI_DB_oci8_driver extends CI_DB {
 			return TRUE;
 		}
 
-		$ret = OCIrollback($this->conn_id);
+		$ret = oci_rollback($this->conn_id);
 		$this->_commit = OCI_COMMIT_ON_SUCCESS;
 		return $ret;
 	}
@@ -391,7 +403,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @param	bool	whether or not the string will be used in a LIKE condition
 	 * @return  string
 	 */
-	function escape_str($str, $like = FALSE)
+	public function escape_str($str, $like = FALSE)
 	{
 		if (is_array($str))
 		{
@@ -425,9 +437,9 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access  public
 	 * @return  integer
 	 */
-	function affected_rows()
+	public function affected_rows()
 	{
-		return @ocirowcount($this->stmt_id);
+		return @oci_num_rows($this->stmt_id);
 	}
 
 	// --------------------------------------------------------------------
@@ -438,7 +450,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @access  public
 	 * @return  integer
 	 */
-	function insert_id()
+	public function insert_id()
 	{
 		// not supported in oracle
 		return $this->display_error('db_unsupported_function');
@@ -456,7 +468,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @param   string
 	 * @return  string
 	 */
-	function count_all($table = '')
+	public function count_all($table = '')
 	{
 		if ($table == '')
 		{
@@ -482,11 +494,11 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
 	 *
-	 * @access  private
+	 * @access	protected
 	 * @param	boolean
-	 * @return  string
+	 * @return	string
 	 */
-	function _list_tables($prefix_limit = FALSE)
+	protected function _list_tables($prefix_limit = FALSE)
 	{
 		$sql = "SELECT TABLE_NAME FROM ALL_TABLES";
 
@@ -505,11 +517,11 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific query string so that the column names can be fetched
 	 *
-	 * @access  public
+	 * @access  protected
 	 * @param   string  the table name
 	 * @return  string
 	 */
-	function _list_columns($table = '')
+	protected function _list_columns($table = '')
 	{
 		return "SELECT COLUMN_NAME FROM all_tab_columns WHERE table_name = '$table'";
 	}
@@ -525,7 +537,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @param   string  the table name
 	 * @return  object
 	 */
-	function _field_data($table)
+	protected function _field_data($table)
 	{
 		return "SELECT * FROM ".$table." where rownum = 1";
 	}
@@ -535,12 +547,13 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * The error message string
 	 *
-	 * @access  private
+	 * @access  protected
 	 * @return  string
 	 */
-	function _error_message()
+	protected function _error_message()
 	{
-		$error = ocierror($this->conn_id);
+		// If the error was during connection, no conn_id should be passed
+		$error = is_resource($this->conn_id) ? oci_error($this->conn_id) : oci_error();
 		return $error['message'];
 	}
 
@@ -549,12 +562,13 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * The error message number
 	 *
-	 * @access  private
+	 * @access  protected
 	 * @return  integer
 	 */
-	function _error_number()
+	protected function _error_number()
 	{
-		$error = ocierror($this->conn_id);
+		// Same as _error_message()
+		$error = is_resource($this->conn_id) ? oci_error($this->conn_id) : oci_error();
 		return $error['code'];
 	}
 
@@ -565,11 +579,11 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * This function escapes column and table names
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	string
 	 * @return	string
 	 */
-	function _escape_identifiers($item)
+	protected function _escape_identifiers($item)
 	{
 		if ($this->_escape_char == '')
 		{
@@ -608,11 +622,11 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * This function implicitly groups FROM tables so there is no confusion
 	 * about operator precedence in harmony with SQL standards
 	 *
-	 * @access	public
+	 * @access	protected
 	 * @param	type
 	 * @return	type
 	 */
-	function _from_tables($tables)
+	protected function _from_tables($tables)
 	{
 		if ( ! is_array($tables))
 		{
@@ -635,9 +649,37 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @param   array   the insert values
 	 * @return  string
 	 */
-	function _insert($table, $keys, $values)
+	protected function _insert($table, $keys, $values)
+	{
+		return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Insert_batch statement
+	 *
+	 * Generates a platform-specific insert string from the supplied data
+	 *
+	 * @access      protected
+	 * @param       string  the table name
+	 * @param       array   the insert keys
+	 * @param       array   the insert values
+	 * @return      string
+	 */
+	protected function _insert_batch($table, $keys, $values)
 	{
-	return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
+		$keys = implode(', ', $keys);
+		$sql = "INSERT ALL\n";
+
+		for ($i = 0, $c = count($values); $i < $c; $i++)
+		{
+			$sql .= '	INTO ' . $table . ' (' . $keys . ') VALUES ' . $values[$i] . "\n";
+		}
+
+		$sql .= 'SELECT * FROM dual';
+
+		return $sql;
 	}
 
 	// --------------------------------------------------------------------
@@ -647,7 +689,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific update string from the supplied data
 	 *
-	 * @access	public
+	 * @access	protected
 	 * @param	string	the table name
 	 * @param	array	the update data
 	 * @param	array	the where clause
@@ -655,7 +697,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * @param	array	the limit clause
 	 * @return	string
 	 */
-	function _update($table, $values, $where, $orderby = array(), $limit = FALSE)
+	protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE)
 	{
 		foreach ($values as $key => $val)
 		{
@@ -684,11 +726,11 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * If the database does not support the truncate() command
 	 * This function maps to "DELETE FROM table"
 	 *
-	 * @access	public
+	 * @access	protected
 	 * @param	string	the table name
 	 * @return	string
 	 */
-	function _truncate($table)
+	protected function _truncate($table)
 	{
 		return "TRUNCATE TABLE ".$table;
 	}
@@ -700,13 +742,13 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific delete string from the supplied data
 	 *
-	 * @access	public
+	 * @access	protected
 	 * @param	string	the table name
 	 * @param	array	the where clause
 	 * @param	string	the limit clause
 	 * @return	string
 	 */
-	function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+	protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
 	{
 		$conditions = '';
 
@@ -734,13 +776,13 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific LIMIT clause
 	 *
-	 * @access  public
+	 * @access  protected
 	 * @param   string  the sql query string
 	 * @param   integer the number of rows to limit the query to
 	 * @param   integer the offset value
 	 * @return  string
 	 */
-	function _limit($sql, $limit, $offset)
+	protected function _limit($sql, $limit, $offset)
 	{
 		$limit = $offset + $limit;
 		$newsql = "SELECT * FROM (select inner_query.*, rownum rnum FROM ($sql) inner_query WHERE rownum < $limit)";
@@ -761,13 +803,13 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Close DB Connection
 	 *
-	 * @access  public
+	 * @access  protected
 	 * @param   resource
 	 * @return  void
 	 */
-	function _close($conn_id)
+	protected function _close($conn_id)
 	{
-		@ocilogoff($conn_id);
+		@oci_close($conn_id);
 	}
 
 
@@ -776,4 +818,4 @@ class CI_DB_oci8_driver extends CI_DB {
 
 
 /* End of file oci8_driver.php */
-/* Location: ./system/database/drivers/oci8/oci8_driver.php */
\ No newline at end of file
+/* Location: ./system/database/drivers/oci8/oci8_driver.php */
diff --git a/system/database/drivers/oci8/oci8_forge.php b/system/database/drivers/oci8/oci8_forge.php
index 3cd17585a..bafab3d1b 100644
--- a/system/database/drivers/oci8/oci8_forge.php
+++ b/system/database/drivers/oci8/oci8_forge.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * Oracle Forge Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_oci8_forge extends CI_DB_forge {
diff --git a/system/database/drivers/oci8/oci8_result.php b/system/database/drivers/oci8/oci8_result.php
index 88531b436..3ec71a9d6 100644
--- a/system/database/drivers/oci8/oci8_result.php
+++ b/system/database/drivers/oci8/oci8_result.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * This class extends the parent result class: CI_DB_result
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_oci8_result extends CI_DB_result {
@@ -40,17 +52,20 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 * @access  public
 	 * @return  integer
 	 */
-	function num_rows()
+	public function num_rows()
 	{
-		$rowcount = count($this->result_array());
-		@ociexecute($this->stmt_id);
-
-		if ($this->curs_id)
+		if ($this->num_rows === 0 && count($this->result_array()) > 0)
 		{
-			@ociexecute($this->curs_id);
+			$this->num_rows = count($this->result_array());
+			@oci_execute($this->stmt_id);
+
+			if ($this->curs_id)
+			{
+				@oci_execute($this->curs_id);
+			}
 		}
 
-		return $rowcount;
+		return $this->num_rows;
 	}
 
 	// --------------------------------------------------------------------
@@ -61,9 +76,9 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 * @access  public
 	 * @return  integer
 	 */
-	function num_fields()
+	public function num_fields()
 	{
-		$count = @ocinumcols($this->stmt_id);
+		$count = @oci_num_fields($this->stmt_id);
 
 		// if we used a limit we subtract it
 		if ($this->limit_used)
@@ -84,13 +99,12 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 * @access	public
 	 * @return	array
 	 */
-	function list_fields()
+	public function list_fields()
 	{
 		$field_names = array();
-		$fieldCount = $this->num_fields();
-		for ($c = 1; $c <= $fieldCount; $c++)
+		for ($c = 1, $fieldCount = $this->num_fields(); $c <= $fieldCount; $c++)
 		{
-			$field_names[] = ocicolumnname($this->stmt_id, $c);
+			$field_names[] = oci_field_name($this->stmt_id, $c);
 		}
 		return $field_names;
 	}
@@ -105,16 +119,15 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 * @access  public
 	 * @return  array
 	 */
-	function field_data()
+	public function field_data()
 	{
 		$retval = array();
-		$fieldCount = $this->num_fields();
-		for ($c = 1; $c <= $fieldCount; $c++)
+		for ($c = 1, $fieldCount = $this->num_fields(); $c <= $fieldCount; $c++)
 		{
-			$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);
+			$F			= new stdClass();
+			$F->name		= oci_field_name($this->stmt_id, $c);
+			$F->type		= oci_field_type($this->stmt_id, $c);
+			$F->max_length		= oci_field_size($this->stmt_id, $c);
 
 			$retval[] = $F;
 		}
@@ -129,11 +142,11 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 *
 	 * @return	null
 	 */
-	function free_result()
+	public function free_result()
 	{
 		if (is_resource($this->result_id))
 		{
-			ocifreestatement($this->result_id);
+			oci_free_statement($this->result_id);
 			$this->result_id = FALSE;
 		}
 	}
@@ -145,14 +158,13 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 *
 	 * Returns the result set as an array
 	 *
-	 * @access  private
+	 * @access  protected
 	 * @return  array
 	 */
-	function _fetch_assoc(&$row)
+	protected function _fetch_assoc()
 	{
 		$id = ($this->curs_id) ? $this->curs_id : $this->stmt_id;
-
-		return ocifetchinto($id, $row, OCI_ASSOC + OCI_RETURN_NULLS);
+		return oci_fetch_assoc($id);
 	}
 
 	// --------------------------------------------------------------------
@@ -162,41 +174,13 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 *
 	 * Returns the result set as an object
 	 *
-	 * @access  private
+	 * @access  protected
 	 * @return  object
 	 */
-	function _fetch_object()
+	protected 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)
-		{
-			$obj = new stdClass();
-			if (is_array($val))
-			{
-				foreach ($val as $k => $v)
-				{
-					$obj->$k = $v;
-				}
-			}
-			else
-			{
-				$obj->$key = $val;
-			}
-
-			$result[] = $obj;
-		}
-
-		return $result;
+		$id = ($this->curs_id) ? $this->curs_id : $this->stmt_id;
+		return @oci_fetch_object($id);
 	}
 
 	// --------------------------------------------------------------------
@@ -207,17 +191,15 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 * @access  public
 	 * @return  array
 	 */
-	function result_array()
+	public function result_array()
 	{
 		if (count($this->result_array) > 0)
 		{
 			return $this->result_array;
 		}
 
-		// oracle's fetch functions do not return arrays.
-		// The information is returned in reference parameters
 		$row = NULL;
-		while ($this->_fetch_assoc($row))
+		while ($row = $this->_fetch_assoc())
 		{
 			$this->result_array[] = $row;
 		}
@@ -234,10 +216,10 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 * this internally before fetching results to make sure the
 	 * result set starts at zero
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	array
 	 */
-	function _data_seek($n = 0)
+	protected function _data_seek($n = 0)
 	{
 		return FALSE; // Not needed
 	}
@@ -246,4 +228,4 @@ class CI_DB_oci8_result extends CI_DB_result {
 
 
 /* End of file oci8_result.php */
-/* Location: ./system/database/drivers/oci8/oci8_result.php */
\ No newline at end of file
+/* Location: ./system/database/drivers/oci8/oci8_result.php */
diff --git a/system/database/drivers/oci8/oci8_utility.php b/system/database/drivers/oci8/oci8_utility.php
index 854b467e1..28c374d99 100644
--- a/system/database/drivers/oci8/oci8_utility.php
+++ b/system/database/drivers/oci8/oci8_utility.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * Oracle Utility Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_oci8_utility extends CI_DB_utility {
diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php
index 08cd27b6c..0e9d46d3f 100644
--- a/system/database/drivers/odbc/odbc_driver.php
+++ b/system/database/drivers/odbc/odbc_driver.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -25,7 +37,7 @@
  * @package		CodeIgniter
  * @subpackage	Drivers
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_odbc_driver extends CI_DB {
@@ -48,9 +60,9 @@ class CI_DB_odbc_driver extends CI_DB {
 	var $_random_keyword;
 
 
-	function CI_DB_odbc_driver($params)
+	function __construct($params)
 	{
-		parent::CI_DB_driver($params);
+		parent::__construct($params);
 
 		$this->_random_keyword = ' RND('.time().')'; // database specific random keyword
 	}
diff --git a/system/database/drivers/odbc/odbc_forge.php b/system/database/drivers/odbc/odbc_forge.php
index 3ec86b4e9..e326a2801 100644
--- a/system/database/drivers/odbc/odbc_forge.php
+++ b/system/database/drivers/odbc/odbc_forge.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * ODBC Forge Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/database/
  */
 class CI_DB_odbc_forge extends CI_DB_forge {
diff --git a/system/database/drivers/odbc/odbc_result.php b/system/database/drivers/odbc/odbc_result.php
index 5d64a464f..b23a821d3 100644
--- a/system/database/drivers/odbc/odbc_result.php
+++ b/system/database/drivers/odbc/odbc_result.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * This class extends the parent result class: CI_DB_result
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_odbc_result extends CI_DB_result {
diff --git a/system/database/drivers/odbc/odbc_utility.php b/system/database/drivers/odbc/odbc_utility.php
index d335bed99..94666acbf 100644
--- a/system/database/drivers/odbc/odbc_utility.php
+++ b/system/database/drivers/odbc/odbc_utility.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * ODBC Utility Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/database/
  */
 class CI_DB_odbc_utility extends CI_DB_utility {
diff --git a/system/database/drivers/pdo/index.html b/system/database/drivers/pdo/index.html
new file mode 100644
index 000000000..c942a79ce
--- /dev/null
+++ b/system/database/drivers/pdo/index.html
@@ -0,0 +1,10 @@
+<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/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
new file mode 100644
index 000000000..5f63a3771
--- /dev/null
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -0,0 +1,819 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 2.1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * PDO Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the active record
+ * class is being used or not.
+ *
+ * @package		CodeIgniter
+ * @subpackage	Drivers
+ * @category	Database
+ * @author		EllisLab Dev Team
+ * @link		http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_driver extends CI_DB {
+
+	var $dbdriver = 'pdo';
+
+	// the character used to excape - not necessary for PDO
+	var $_escape_char = '';
+	var $_like_escape_str;
+	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
+	 * used for the count_all() and count_all_results() functions.
+	 */
+	var $_count_string = "SELECT COUNT(*) AS ";
+	var $_random_keyword;
+	
+	var $options = array();
+
+	function __construct($params)
+	{
+		parent::__construct($params);
+		
+		// clause and character used for LIKE escape sequences
+		if (strpos($this->hostname, 'mysql') !== FALSE)
+		{
+			$this->_like_escape_str = '';
+			$this->_like_escape_chr = '';
+			
+			//Prior to this version, the charset can't be set in the dsn
+			if(is_php('5.3.6'))
+			{
+				$this->hostname .= ";charset={$this->char_set}";
+			}
+			
+			//Set the charset with the connection options
+			$this->options['PDO::MYSQL_ATTR_INIT_COMMAND'] = "SET NAMES {$this->char_set}";
+		}
+		else if (strpos($this->hostname, 'odbc') !== FALSE)
+		{
+			$this->_like_escape_str = " {escape '%s'} ";
+			$this->_like_escape_chr = '!';
+		}
+		else
+		{
+			$this->_like_escape_str = " ESCAPE '%s' ";
+			$this->_like_escape_chr = '!';
+		}
+		
+		$this->hostname .= ";dbname=".$this->database;
+		
+		$this->trans_enabled = FALSE;
+
+		$this->_random_keyword = ' RND('.time().')'; // database specific random keyword
+	}
+
+	/**
+	 * Non-persistent database connection
+	 *
+	 * @access	private called by the base class
+	 * @return	resource
+	 */
+	function db_connect()
+	{
+		$this->options['PDO::ATTR_ERRMODE'] = PDO::ERRMODE_SILENT;
+		
+		return new PDO($this->hostname, $this->username, $this->password, $this->options);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Persistent database connection
+	 *
+	 * @access	private called by the base class
+	 * @return	resource
+	 */
+	function db_pconnect()
+	{
+		$this->options['PDO::ATTR_ERRMODE'] = PDO::ERRMODE_SILENT;
+		$this->options['PDO::ATTR_PERSISTENT'] = TRUE;
+	
+		return new PDO($this->hostname, $this->username, $this->password, $this->options);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Reconnect
+	 *
+	 * Keep / reestablish the db connection if no queries have been
+	 * sent for a length of time exceeding the server's idle timeout
+	 *
+	 * @access	public
+	 * @return	void
+	 */
+	function reconnect()
+	{
+		if ($this->db->db_debug)
+		{
+			return $this->db->display_error('db_unsuported_feature');
+		}
+		return FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Select the database
+	 *
+	 * @access	private called by the base class
+	 * @return	resource
+	 */
+	function db_select()
+	{
+		// Not needed for PDO
+		return TRUE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Set client character set
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	string
+	 * @return	resource
+	 */
+	function db_set_charset($charset, $collation)
+	{
+		// @todo - add support if needed
+		return TRUE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Version number query string
+	 *
+	 * @access	public
+	 * @return	string
+	 */
+	function _version()
+	{
+		return $this->conn_id->getAttribute(PDO::ATTR_CLIENT_VERSION);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Execute the query
+	 *
+	 * @access	private called by the base class
+	 * @param	string	an SQL query
+	 * @return	object
+	 */
+	function _execute($sql)
+	{
+		$sql = $this->_prep_query($sql);
+		$result_id = $this->conn_id->query($sql);
+		
+		if (is_object($result_id))
+		{
+			$this->affect_rows = $result_id->rowCount();
+		}
+		else
+		{
+			$this->affect_rows = 0;
+		}
+		
+		return $result_id;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Prep the query
+	 *
+	 * If needed, each database adapter can prep the query string
+	 *
+	 * @access	private called by execute()
+	 * @param	string	an SQL query
+	 * @return	string
+	 */
+	function _prep_query($sql)
+	{
+		return $sql;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Begin Transaction
+	 *
+	 * @access	public
+	 * @return	bool
+	 */
+	function trans_begin($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.
+<<<<<<< HEAD
+		$this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE;
+=======
+		$this->_trans_failure = (bool) ($test_mode === TRUE);
+>>>>>>> master
+
+		return $this->conn_id->beginTransaction();
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Commit Transaction
+	 *
+	 * @access	public
+	 * @return	bool
+	 */
+	function trans_commit()
+	{
+		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;
+		}
+
+		$ret = $this->conn->commit();
+		return $ret;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Rollback Transaction
+	 *
+	 * @access	public
+	 * @return	bool
+	 */
+	function trans_rollback()
+	{
+		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;
+		}
+
+		$ret = $this->conn_id->rollBack();
+		return $ret;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Escape String
+	 *
+	 * @access	public
+	 * @param	string
+	 * @param	bool	whether or not the string will be used in a LIKE condition
+	 * @return	string
+	 */
+	function escape_str($str, $like = FALSE)
+	{
+		if (is_array($str))
+		{
+			foreach ($str as $key => $val)
+			{
+				$str[$key] = $this->escape_str($val, $like);
+			}
+
+			return $str;
+		}
+		
+		//Escape the string
+		$str = $this->conn_id->quote($str);
+		
+		//If there are duplicated quotes, trim them away
+		if (strpos($str, "'") === 0)
+		{
+			$str = substr($str, 1, -1);
+		}
+		
+		// escape LIKE condition wildcards
+		if ($like === TRUE)
+		{
+			$str = str_replace(	array('%', '_', $this->_like_escape_chr),
+								array($this->_like_escape_chr.'%', $this->_like_escape_chr.'_', $this->_like_escape_chr.$this->_like_escape_chr),
+								$str);
+		}
+
+		return $str;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Affected Rows
+	 *
+	 * @access	public
+	 * @return	integer
+	 */
+	function affected_rows()
+	{
+		return $this->affect_rows;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Insert ID
+	 * 
+	 * @access	public
+	 * @return	integer
+	 */
+	function insert_id($name=NULL)
+	{
+		//Convenience method for postgres insertid
+		if (strpos($this->hostname, 'pgsql') !== FALSE)
+		{
+			$v = $this->_version();
+
+			$table	= func_num_args() > 0 ? func_get_arg(0) : NULL;
+
+			if ($table == NULL && $v >= '8.1')
+			{
+				$sql='SELECT LASTVAL() as ins_id';
+			}
+			$query = $this->query($sql);
+			$row = $query->row();
+			return $row->ins_id;
+		}
+		else
+		{
+			return $this->conn_id->lastInsertId($name);
+		}
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * "Count All" query
+	 *
+	 * Generates a platform-specific query string that counts all records in
+	 * the specified database
+	 *
+	 * @access	public
+	 * @param	string
+	 * @return	string
+	 */
+	function count_all($table = '')
+	{
+		if ($table == '')
+		{
+			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)
+		{
+			return 0;
+		}
+
+		$row = $query->row();
+		$this->_reset_select();
+		return (int) $row->numrows;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Show table query
+	 *
+	 * Generates a platform-specific query string so that the table names can be fetched
+	 *
+	 * @access	private
+	 * @param	boolean
+	 * @return	string
+	 */
+	function _list_tables($prefix_limit = FALSE)
+	{
+		$sql = "SHOW TABLES FROM `".$this->database."`";
+
+		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
+		{
+			//$sql .= " LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
+			return FALSE; // not currently supported
+		}
+
+		return $sql;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Show column query
+	 *
+	 * Generates a platform-specific query string so that the column names can be fetched
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @return	string
+	 */
+	function _list_columns($table = '')
+	{
+		return "SHOW COLUMNS FROM ".$table;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Field data query
+	 *
+	 * Generates a platform-specific query so that the column data can be retrieved
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @return	object
+	 */
+	function _field_data($table)
+	{
+		return "SELECT TOP 1 FROM ".$table;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * The error message string
+	 *
+	 * @access	private
+	 * @return	string
+	 */
+	function _error_message()
+	{
+		$error_array = $this->conn_id->errorInfo();
+		return $error_array[2];
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * The error message number
+	 *
+	 * @access	private
+	 * @return	integer
+	 */
+	function _error_number()
+	{
+		return $this->conn_id->errorCode();
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Escape the SQL Identifiers
+	 *
+	 * This function escapes column and table names
+	 *
+	 * @access	private
+	 * @param	string
+	 * @return	string
+	 */
+	function _escape_identifiers($item)
+	{
+		if ($this->_escape_char == '')
+		{
+			return $item;
+		}
+
+		foreach ($this->_reserved_identifiers as $id)
+		{
+			if (strpos($item, '.'.$id) !== FALSE)
+			{
+				$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;
+			
+		}
+		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, $str);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * From Tables
+	 *
+	 * This function implicitly groups FROM tables so there is no confusion
+	 * about operator precedence in harmony with SQL standards
+	 *
+	 * @access	public
+	 * @param	type
+	 * @return	type
+	 */
+	function _from_tables($tables)
+	{
+		if ( ! is_array($tables))
+		{
+			$tables = array($tables);
+		}
+
+		return (count($tables) == 1) ? $tables[0] : '('.implode(', ', $tables).')';
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Insert statement
+	 *
+	 * Generates a platform-specific insert string from the supplied data
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @param	array	the insert keys
+	 * @param	array	the insert values
+	 * @return	string
+	 */
+	function _insert($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(', ', $values);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Update statement
+	 *
+	 * Generates a platform-specific update string from the supplied data
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @param	array	the update data
+	 * @param	array	the where clause
+	 * @param	array	the orderby clause
+	 * @param	array	the limit clause
+	 * @return	string
+	 */
+	function _update($table, $values, $where, $orderby = array(), $limit = FALSE)
+	{
+		foreach ($values as $key => $val)
+		{
+			$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 $sql;
+	}
+
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Truncate statement
+	 *
+	 * Generates a platform-specific truncate string from the supplied data
+	 * If the database does not support the truncate() command
+	 * This function maps to "DELETE FROM table"
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @return	string
+	 */
+	function _truncate($table)
+	{
+		return $this->_delete($table);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Delete statement
+	 *
+	 * Generates a platform-specific delete string from the supplied data
+	 *
+	 * @access	public
+	 * @param	string	the table name
+	 * @param	array	the where clause
+	 * @param	string	the limit clause
+	 * @return	string
+	 */
+	function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+	{
+		$conditions = '';
+
+		if (count($where) > 0 OR count($like) > 0)
+		{
+			$conditions = "\nWHERE ";
+			$conditions .= implode("\n", $this->ar_where);
+
+			if (count($where) > 0 && count($like) > 0)
+			{
+				$conditions .= " AND ";
+			}
+			$conditions .= implode("\n", $like);
+		}
+
+		$limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
+
+		return "DELETE FROM ".$table.$conditions.$limit;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Limit string
+	 *
+	 * Generates a platform-specific LIMIT clause
+	 *
+	 * @access	public
+	 * @param	string	the sql query string
+	 * @param	integer	the number of rows to limit the query to
+	 * @param	integer	the offset value
+	 * @return	string
+	 */
+	function _limit($sql, $limit, $offset)
+	{
+		if (strpos($this->hostname, 'cubrid') !== FALSE || strpos($this->hostname, 'sqlite') !== FALSE)
+		{
+			if ($offset == 0)
+			{
+				$offset = '';
+			}
+			else
+			{
+				$offset .= ", ";
+			}
+
+			return $sql."LIMIT ".$offset.$limit;
+		}
+		else
+		{
+			$sql .= "LIMIT ".$limit;
+
+			if ($offset > 0)
+			{
+				$sql .= " OFFSET ".$offset;
+			}
+			
+			return $sql;
+		}
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Close DB Connection
+	 *
+	 * @access	public
+	 * @param	resource
+	 * @return	void
+	 */
+	function _close($conn_id)
+	{
+		$this->conn_id = null;
+	}
+
+
+}
+
+
+
+/* End of file pdo_driver.php */
+/* Location: ./system/database/drivers/pdo/pdo_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/pdo_forge.php b/system/database/drivers/pdo/pdo_forge.php
new file mode 100644
index 000000000..bf3066529
--- /dev/null
+++ b/system/database/drivers/pdo/pdo_forge.php
@@ -0,0 +1,278 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 2.1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * PDO Forge Class
+ *
+ * @category	Database
+ * @author		EllisLab Dev Team
+ * @link		http://codeigniter.com/database/
+ */
+class CI_DB_pdo_forge extends CI_DB_forge {
+
+	/**
+	 * Create database
+	 *
+	 * @access	private
+	 * @param	string	the database name
+	 * @return	bool
+	 */
+	function _create_database()
+	{
+		// PDO has no "create database" command since it's
+		// designed to connect to an existing database
+		if ($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)
+	{
+		// PDO has no "drop database" command since it's
+		// designed to connect to an existing database
+		if ($this->db->db_debug)
+		{
+			return $this->db->display_error('db_unsuported_feature');
+		}
+		return FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Create Table
+	 *
+	 * @access	private
+	 * @param	string	the table name
+	 * @param	array	the fields
+	 * @param	mixed	primary key(s)
+	 * @param	mixed	key(s)
+	 * @param	boolean	should 'IF NOT EXISTS' be added to the SQL
+	 * @return	bool
+	 */
+	function _create_table($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)." (";
+		$current_field_count = 0;
+
+		foreach ($fields as $field=>$attributes)
+		{
+			// Numeric field names aren't allowed in databases, so if the key is
+			// numeric, we know it was assigned by PHP and the developer manually
+			// entered the field information, so we'll simply add it to the list
+			if (is_numeric($field))
+			{
+				$sql .= "\n\t$attributes";
+			}
+			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';
+				}
+
+				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))
+			{
+				$sql .= ',';
+			}
+		}
+
+		if (count($primary_keys) > 0)
+		{
+			$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);
+				}
+				else
+				{
+					$key = array($this->db->_protect_identifiers($key));
+				}
+
+				$sql .= ",\n\tFOREIGN KEY (" . implode(', ', $key) . ")";
+			}
+		}
+
+		$sql .= "\n)";
+
+		return $sql;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Drop Table
+	 *
+	 * @access	private
+	 * @return	bool
+	 */
+	function _drop_table($table)
+	{
+		// Not a supported PDO feature
+		if ($this->db->db_debug)
+		{
+			return $this->db->display_error('db_unsuported_feature');
+		}
+		return FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Alter table query
+	 *
+	 * Generates a platform-specific query so that a table can be altered
+	 * Called by add_column(), drop_column(), and column_alter(),
+	 *
+	 * @access	private
+	 * @param	string	the ALTER type (ADD, DROP, CHANGE)
+	 * @param	string	the column name
+	 * @param	string	the table name
+	 * @param	string	the column definition
+	 * @param	string	the default value
+	 * @param	boolean	should 'NOT NULL' be added
+	 * @param	string	the field after which we should add the new field
+	 * @return	object
+	 */
+	function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
+	{
+		$sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table)." $alter_type ".$this->db->_protect_identifiers($column_name);
+
+		// DROP has everything it needs now.
+		if ($alter_type == 'DROP')
+		{
+			return $sql;
+		}
+
+		$sql .= " $column_definition";
+
+		if ($default_value != '')
+		{
+			$sql .= " DEFAULT \"$default_value\"";
+		}
+
+		if ($null === NULL)
+		{
+			$sql .= ' NULL';
+		}
+		else
+		{
+			$sql .= ' NOT NULL';
+		}
+
+		if ($after_field != '')
+		{
+			$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
+		}
+
+		return $sql;
+
+	}
+
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Rename a table
+	 *
+	 * Generates a platform-specific query so that a table can be renamed
+	 *
+	 * @access	private
+	 * @param	string	the old table name
+	 * @param	string	the new table name
+	 * @return	string
+	 */
+	function _rename_table($table_name, $new_table_name)
+	{
+		$sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table_name)." RENAME TO ".$this->db->_protect_identifiers($new_table_name);
+		return $sql;
+	}
+
+
+}
+
+/* End of file pdo_forge.php */
+/* Location: ./system/database/drivers/pdo/pdo_forge.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/pdo_result.php b/system/database/drivers/pdo/pdo_result.php
new file mode 100644
index 000000000..559c2edb3
--- /dev/null
+++ b/system/database/drivers/pdo/pdo_result.php
@@ -0,0 +1,183 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 2.1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * PDO Result Class
+ *
+ * This class extends the parent result class: CI_DB_result
+ *
+ * @category	Database
+ * @author		EllisLab Dev Team
+ * @link		http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_result extends CI_DB_result {
+
+	/**
+	 * Number of rows in the result set
+	 *
+	 * @access	public
+	 * @return	integer
+	 */
+	function num_rows()
+	{
+		return $this->result_id->rowCount();
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Number of fields in the result set
+	 *
+	 * @access	public
+	 * @return	integer
+	 */
+	function num_fields()
+	{
+		return $this->result_id->columnCount();
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Fetch Field Names
+	 *
+	 * Generates an array of column names
+	 *
+	 * @access	public
+	 * @return	array
+	 */
+	function list_fields()
+	{
+		if ($this->db->db_debug)
+		{
+			return $this->db->display_error('db_unsuported_feature');
+		}
+		return FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Field data
+	 *
+	 * Generates an array of objects containing field meta-data
+	 *
+	 * @access	public
+	 * @return	array
+	 */
+	function field_data()
+	{
+		$data = array();
+	
+		try
+		{
+			for($i = 0; $i < $this->num_fields(); $i++)
+			{
+				$data[] = $this->result_id->getColumnMeta($i);
+			}
+			
+			return $data;
+		}
+		catch (Exception $e)
+		{
+			if ($this->db->db_debug)
+			{
+				return $this->db->display_error('db_unsuported_feature');
+			}
+			return FALSE;
+		}
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Free the result
+	 *
+	 * @return	null
+	 */
+	function free_result()
+	{
+		if (is_object($this->result_id))
+		{
+			$this->result_id = FALSE;
+		}
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Data Seek
+	 *
+	 * Moves the internal pointer to the desired offset.  We call
+	 * this internally before fetching results to make sure the
+	 * result set starts at zero
+	 *
+	 * @access	private
+	 * @return	array
+	 */
+	function _data_seek($n = 0)
+	{
+		return FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Result - associative array
+	 *
+	 * Returns the result set as an array
+	 *
+	 * @access	private
+	 * @return	array
+	 */
+	function _fetch_assoc()
+	{
+		return $this->result_id->fetch(PDO::FETCH_ASSOC);
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Result - object
+	 *
+	 * Returns the result set as an object
+	 *
+	 * @access	private
+	 * @return	object
+	 */
+	function _fetch_object()
+	{	
+		return $this->result_id->fetchObject();
+	}
+
+}
+
+
+/* End of file pdo_result.php */
+/* Location: ./system/database/drivers/pdo/pdo_result.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/pdo_utility.php b/system/database/drivers/pdo/pdo_utility.php
new file mode 100644
index 000000000..90b46af3e
--- /dev/null
+++ b/system/database/drivers/pdo/pdo_utility.php
@@ -0,0 +1,115 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 2.1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * PDO Utility Class
+ *
+ * @category	Database
+ * @author		EllisLab Dev Team
+ * @link		http://codeigniter.com/database/
+ */
+class CI_DB_pdo_utility extends CI_DB_utility {
+
+	/**
+	 * List databases
+	 *
+	 * @access	private
+	 * @return	bool
+	 */
+	function _list_databases()
+	{
+		// Not sure if PDO lets you list all databases...
+		if ($this->db->db_debug)
+		{
+			return $this->db->display_error('db_unsuported_feature');
+		}
+		return FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Optimize table query
+	 *
+	 * Generates a platform-specific query so that a table can be optimized
+	 *
+	 * @access	private
+	 * @param	string	the table name
+	 * @return	object
+	 */
+	function _optimize_table($table)
+	{
+		// Not a supported PDO feature
+		if ($this->db->db_debug)
+		{
+			return $this->db->display_error('db_unsuported_feature');
+		}
+		return FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Repair table query
+	 *
+	 * Generates a platform-specific query so that a table can be repaired
+	 *
+	 * @access	private
+	 * @param	string	the table name
+	 * @return	object
+	 */
+	function _repair_table($table)
+	{
+		// Not a supported PDO feature
+		if ($this->db->db_debug)
+		{
+			return $this->db->display_error('db_unsuported_feature');
+		}
+		return FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * PDO Export
+	 *
+	 * @access	private
+	 * @param	array	Preferences
+	 * @return	mixed
+	 */
+	function _backup($params = array())
+	{
+		// Currently unsupported
+		return $this->db->display_error('db_unsuported_feature');
+	}
+
+}
+
+/* End of file pdo_utility.php */
+/* Location: ./system/database/drivers/pdo/pdo_utility.php */
\ No newline at end of file
diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php
index 5367f9759..50f096b5d 100644
--- a/system/database/drivers/postgre/postgre_driver.php
+++ b/system/database/drivers/postgre/postgre_driver.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -25,7 +37,7 @@
  * @package		CodeIgniter
  * @subpackage	Drivers
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_postgre_driver extends CI_DB {
diff --git a/system/database/drivers/postgre/postgre_forge.php b/system/database/drivers/postgre/postgre_forge.php
index 91a1c6861..166cc4e6a 100644
--- a/system/database/drivers/postgre/postgre_forge.php
+++ b/system/database/drivers/postgre/postgre_forge.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * Postgre Forge Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_postgre_forge extends CI_DB_forge {
diff --git a/system/database/drivers/postgre/postgre_result.php b/system/database/drivers/postgre/postgre_result.php
index e9a1d1607..808e8bf72 100644
--- a/system/database/drivers/postgre/postgre_result.php
+++ b/system/database/drivers/postgre/postgre_result.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * This class extends the parent result class: CI_DB_result
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_postgre_result extends CI_DB_result {
diff --git a/system/database/drivers/postgre/postgre_utility.php b/system/database/drivers/postgre/postgre_utility.php
index 741c52ea8..f81f85782 100644
--- a/system/database/drivers/postgre/postgre_utility.php
+++ b/system/database/drivers/postgre/postgre_utility.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * Postgre Utility Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_postgre_utility extends CI_DB_utility {
diff --git a/system/database/drivers/sqlite/sqlite_driver.php b/system/database/drivers/sqlite/sqlite_driver.php
index 0cc898b38..a6257cb1f 100644
--- a/system/database/drivers/sqlite/sqlite_driver.php
+++ b/system/database/drivers/sqlite/sqlite_driver.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -27,7 +39,7 @@
  * @package		CodeIgniter
  * @subpackage	Drivers
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_sqlite_driver extends CI_DB {
diff --git a/system/database/drivers/sqlite/sqlite_forge.php b/system/database/drivers/sqlite/sqlite_forge.php
index 56904082e..96a5e0edb 100644
--- a/system/database/drivers/sqlite/sqlite_forge.php
+++ b/system/database/drivers/sqlite/sqlite_forge.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * SQLite Forge Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_sqlite_forge extends CI_DB_forge {
diff --git a/system/database/drivers/sqlite/sqlite_result.php b/system/database/drivers/sqlite/sqlite_result.php
index 7bd30db7c..2bbd1dbc0 100644
--- a/system/database/drivers/sqlite/sqlite_result.php
+++ b/system/database/drivers/sqlite/sqlite_result.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * This class extends the parent result class: CI_DB_result
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_sqlite_result extends CI_DB_result {
diff --git a/system/database/drivers/sqlite/sqlite_utility.php b/system/database/drivers/sqlite/sqlite_utility.php
index 508023e2f..c9914f28d 100644
--- a/system/database/drivers/sqlite/sqlite_utility.php
+++ b/system/database/drivers/sqlite/sqlite_utility.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * SQLite Utility Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_sqlite_utility extends CI_DB_utility {
diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 400fd31c6..0f9f57836 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -25,7 +37,7 @@
  * @package		CodeIgniter
  * @subpackage	Drivers
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_sqlsrv_driver extends CI_DB {
diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index cc88ec5ca..4fa0596cd 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * SQLSRV Forge Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_sqlsrv_forge extends CI_DB_forge {
diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php
index bf0abd1c6..38aaec723 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_result.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_result.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * This class extends the parent result class: CI_DB_result
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_sqlsrv_result extends CI_DB_result {
diff --git a/system/database/drivers/sqlsrv/sqlsrv_utility.php b/system/database/drivers/sqlsrv/sqlsrv_utility.php
index 13a1850c4..f58b5bd04 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_utility.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_utility.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -19,7 +31,7 @@
  * SQLSRV Utility Class
  *
  * @category	Database
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
 class CI_DB_sqlsrv_utility extends CI_DB_utility {
diff --git a/system/helpers/array_helper.php b/system/helpers/array_helper.php
index 075a31fdf..6b8695c11 100644
--- a/system/helpers/array_helper.php
+++ b/system/helpers/array_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/array_helper.html
  */
 
diff --git a/system/helpers/captcha_helper.php b/system/helpers/captcha_helper.php
index 19ec0c778..0fed81996 100644
--- a/system/helpers/captcha_helper.php
+++ b/system/helpers/captcha_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/xml_helper.html
  */
 
@@ -243,4 +255,4 @@ if ( ! function_exists('create_captcha'))
 // ------------------------------------------------------------------------
 
 /* End of file captcha_helper.php */
-/* Location: ./system/heleprs/captcha_helper.php */
\ No newline at end of file
+/* Location: ./system/helpers/captcha_helper.php */
\ No newline at end of file
diff --git a/system/helpers/cookie_helper.php b/system/helpers/cookie_helper.php
index 7cee02827..a4c1e4966 100644
--- a/system/helpers/cookie_helper.php
+++ b/system/helpers/cookie_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/cookie_helper.html
  */
 
diff --git a/system/helpers/date_helper.php b/system/helpers/date_helper.php
index f1febfa1a..07e3c1458 100644
--- a/system/helpers/date_helper.php
+++ b/system/helpers/date_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/date_helper.html
  */
 
@@ -54,10 +66,8 @@ if ( ! function_exists('now'))
 
 			return $system_time;
 		}
-		else
-		{
-			return time();
-		}
+
+		return time();
 	}
 }
 
@@ -85,12 +95,18 @@ if ( ! function_exists('mdate'))
 	function mdate($datestr = '', $time = '')
 	{
 		if ($datestr == '')
-			return '';
+		{
+			return '';			
+		}
 
-		if ($time == '')
-			$time = now();
+		$time = ($time == '') ? now() : $time;
+
+		$datestr = str_replace(
+			'%\\', 
+			'', 
+			preg_replace("/([a-z]+?){1}/i", "\\\\\\1", $datestr)
+		);
 
-		$datestr = str_replace('%\\', '', preg_replace("/([a-z]+?){1}/i", "\\\\\\1", $datestr));
 		return date($datestr, $time);
 	}
 }
@@ -163,14 +179,7 @@ if ( ! function_exists('timespan'))
 			$time = time();
 		}
 
-		if ($time <= $seconds)
-		{
-			$seconds = 1;
-		}
-		else
-		{
-			$seconds = $time - $seconds;
-		}
+		$seconds = ($time <= $seconds) ? 1 : $time - $seconds;
 
 		$str = '';
 		$years = floor($seconds / 31536000);
@@ -304,9 +313,18 @@ 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));
+		}
+		
+		return mktime(
+			gmdate("H", $time), 
+			gmdate("i", $time), 
+			gmdate("s", $time), 
+			gmdate("m", $time), 
+			gmdate("d", $time), 
+			gmdate("Y", $time)
+		);
 	}
 }
 
@@ -367,14 +385,14 @@ if ( ! function_exists('mysql_to_unix'))
 		$time = str_replace(' ', '', $time);
 
 		// YYYYMMDDHHMMSS
-		return  mktime(
-						substr($time, 8, 2),
-						substr($time, 10, 2),
-						substr($time, 12, 2),
-						substr($time, 4, 2),
-						substr($time, 6, 2),
-						substr($time, 0, 4)
-						);
+		return mktime(
+			substr($time, 8, 2),
+			substr($time, 10, 2),
+			substr($time, 12, 2),
+			substr($time, 4, 2),
+			substr($time, 6, 2),
+			substr($time, 0, 4)
+		);
 	}
 }
 
@@ -476,13 +494,19 @@ if ( ! function_exists('human_to_unix'))
 			$ampm = strtolower($split['2']);
 
 			if (substr($ampm, 0, 1) == 'p' AND $hour < 12)
-				$hour = $hour + 12;
+			{
+				$hour = $hour + 12;				
+			}
 
 			if (substr($ampm, 0, 1) == 'a' AND $hour == 12)
+			{
 				$hour =  '00';
-
+			}
+			
 			if (strlen($hour) == 1)
-				$hour = '0'.$hour;
+			{
+				$hour = '0'.$hour;				
+			}
 		}
 
 		return mktime($hour, $min, $sec, $month, $day, $year);
@@ -502,16 +526,16 @@ if ( ! function_exists('human_to_unix'))
  */
 if ( ! function_exists('nice_date'))
 {
-	function nice_date($bad_date='', $format=false) 
+	function nice_date($bad_date = '', $format = FALSE) 
 	{
 		if (empty($bad_date))
 		{
 			return 'Unknown';
 		}
+
 		// Date like: YYYYMM
-		if (preg_match('/^\d{6}$/',$bad_date)) 
+		if (preg_match('/^\d{6}$/', $bad_date)) 
 		{
-			//echo $bad_date." ";
 			if (in_array(substr($bad_date, 0, 2),array('19', '20'))) 
 			{
 				$year  = substr($bad_date, 0, 4);
@@ -522,8 +546,8 @@ if ( ! function_exists('nice_date'))
 				$month  = substr($bad_date, 0, 2);
 				$year   = substr($bad_date, 2, 4);
 			}
+			
 			return date($format, strtotime($year . '-' . $month . '-01'));
-		    
 		}
 		
 		// Date Like: YYYYMMDD
@@ -532,6 +556,7 @@ if ( ! function_exists('nice_date'))
 			$month = substr($bad_date, 0, 2);
 			$day   = substr($bad_date, 2, 2);
 			$year  = substr($bad_date, 4, 4);
+			
 			return date($format, strtotime($month . '/01/' . $year));
 		}
 		
@@ -575,8 +600,7 @@ if ( ! function_exists('timezone_menu'))
 		$CI =& get_instance();
 		$CI->lang->load('date');
 
-		if ($default == 'GMT')
-			$default = 'UTC';
+		$default = ($default == 'GMT') ? 'UTC' : $default;
 
 		$menu = '<select name="'.$name.'"';
 
@@ -619,60 +643,58 @@ if ( ! function_exists('timezones'))
 		// some items appear to be in the wrong order
 
 		$zones = array(
-						'UM12'		=> -12,
-						'UM11'		=> -11,
-						'UM10'		=> -10,
-						'UM95'		=> -9.5,
-						'UM9'		=> -9,
-						'UM8'		=> -8,
-						'UM7'		=> -7,
-						'UM6'		=> -6,
-						'UM5'		=> -5,
-						'UM45'		=> -4.5,
-						'UM4'		=> -4,
-						'UM35'		=> -3.5,
-						'UM3'		=> -3,
-						'UM2'		=> -2,
-						'UM1'		=> -1,
-						'UTC'		=> 0,
-						'UP1'		=> +1,
-						'UP2'		=> +2,
-						'UP3'		=> +3,
-						'UP35'		=> +3.5,
-						'UP4'		=> +4,
-						'UP45'		=> +4.5,
-						'UP5'		=> +5,
-						'UP55'		=> +5.5,
-						'UP575'		=> +5.75,
-						'UP6'		=> +6,
-						'UP65'		=> +6.5,
-						'UP7'		=> +7,
-						'UP8'		=> +8,
-						'UP875'		=> +8.75,
-						'UP9'		=> +9,
-						'UP95'		=> +9.5,
-						'UP10'		=> +10,
-						'UP105'		=> +10.5,
-						'UP11'		=> +11,
-						'UP115'		=> +11.5,
-						'UP12'		=> +12,
-						'UP1275'	=> +12.75,
-						'UP13'		=> +13,
-						'UP14'		=> +14
-					);
+			'UM12'		=> -12,
+			'UM11'		=> -11,
+			'UM10'		=> -10,
+			'UM95'		=> -9.5,
+			'UM9'		=> -9,
+			'UM8'		=> -8,
+			'UM7'		=> -7,
+			'UM6'		=> -6,
+			'UM5'		=> -5,
+			'UM45'		=> -4.5,
+			'UM4'		=> -4,
+			'UM35'		=> -3.5,
+			'UM3'		=> -3,
+			'UM2'		=> -2,
+			'UM1'		=> -1,
+			'UTC'		=> 0,
+			'UP1'		=> +1,
+			'UP2'		=> +2,
+			'UP3'		=> +3,
+			'UP35'		=> +3.5,
+			'UP4'		=> +4,
+			'UP45'		=> +4.5,
+			'UP5'		=> +5,
+			'UP55'		=> +5.5,
+			'UP575'		=> +5.75,
+			'UP6'		=> +6,
+			'UP65'		=> +6.5,
+			'UP7'		=> +7,
+			'UP8'		=> +8,
+			'UP875'		=> +8.75,
+			'UP9'		=> +9,
+			'UP95'		=> +9.5,
+			'UP10'		=> +10,
+			'UP105'		=> +10.5,
+			'UP11'		=> +11,
+			'UP115'		=> +11.5,
+			'UP12'		=> +12,
+			'UP1275'	=> +12.75,
+			'UP13'		=> +13,
+			'UP14'		=> +14
+		);
 
 		if ($tz == '')
 		{
 			return $zones;
 		}
-
-		if ($tz == 'GMT')
-			$tz = 'UTC';
-
+		
+		$tz = ($tz == 'GMT') ? 'UTC' : $tz;
+		
 		return ( ! isset($zones[$tz])) ? 0 : $zones[$tz];
 	}
 }
 
-
 /* End of file date_helper.php */
 /* Location: ./system/helpers/date_helper.php */
\ No newline at end of file
diff --git a/system/helpers/directory_helper.php b/system/helpers/directory_helper.php
index 38347fa62..cb37446f8 100644
--- a/system/helpers/directory_helper.php
+++ b/system/helpers/directory_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/directory_helper.html
  */
 
diff --git a/system/helpers/download_helper.php b/system/helpers/download_helper.php
index 1145688ae..5f5d1aaf7 100644
--- a/system/helpers/download_helper.php
+++ b/system/helpers/download_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/download_helper.html
  */
 
diff --git a/system/helpers/email_helper.php b/system/helpers/email_helper.php
index 651aef439..22099e58a 100644
--- a/system/helpers/email_helper.php
+++ b/system/helpers/email_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/email_helper.html
  */
 
diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php
index 3931667fd..5b5085381 100644
--- a/system/helpers/file_helper.php
+++ b/system/helpers/file_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/file_helpers.html
  */
 
diff --git a/system/helpers/form_helper.php b/system/helpers/form_helper.php
index d9305c00b..0f02bcf75 100644
--- a/system/helpers/form_helper.php
+++ b/system/helpers/form_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/form_helper.html
  */
 
@@ -642,11 +654,8 @@ if ( ! function_exists('form_prep'))
 		{
 			return $str;
 		}
-
-		$str = htmlspecialchars($str);
-
-		// In case htmlspecialchars misses these.
-		$str = str_replace(array("'", '"'), array("&#39;", "&quot;"), $str);
+		
+		$str = html_escape($str);
 
 		if ($field_name != '')
 		{
diff --git a/system/helpers/html_helper.php b/system/helpers/html_helper.php
index b64b60650..b6bb402a8 100644
--- a/system/helpers/html_helper.php
+++ b/system/helpers/html_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/html_helper.html
  */
 
@@ -365,7 +377,7 @@ if ( ! function_exists('link_tag'))
 
 			$link .= '/>';
 		}
-
+		$link .= "\n";
 
 		return $link;
 	}
diff --git a/system/helpers/inflector_helper.php b/system/helpers/inflector_helper.php
index 7b99bc5b4..513a9c54f 100644
--- a/system/helpers/inflector_helper.php
+++ b/system/helpers/inflector_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/directory_helper.html
  */
 
diff --git a/system/helpers/language_helper.php b/system/helpers/language_helper.php
index ac0d69da1..b5217c903 100644
--- a/system/helpers/language_helper.php
+++ b/system/helpers/language_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/language_helper.html
  */
 
diff --git a/system/helpers/number_helper.php b/system/helpers/number_helper.php
index 611777559..71cdabb60 100644
--- a/system/helpers/number_helper.php
+++ b/system/helpers/number_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/number_helper.html
  */
 
diff --git a/system/helpers/path_helper.php b/system/helpers/path_helper.php
index ffcf46842..bca9dcb25 100644
--- a/system/helpers/path_helper.php
+++ b/system/helpers/path_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/xml_helper.html
  */
 
diff --git a/system/helpers/security_helper.php b/system/helpers/security_helper.php
index 678dac821..ad4e29a87 100644
--- a/system/helpers/security_helper.php
+++ b/system/helpers/security_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/security_helper.html
  */
 
diff --git a/system/helpers/smiley_helper.php b/system/helpers/smiley_helper.php
index 6d8889354..991495ee8 100644
--- a/system/helpers/smiley_helper.php
+++ b/system/helpers/smiley_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/smiley_helper.html
  */
 
diff --git a/system/helpers/string_helper.php b/system/helpers/string_helper.php
index 9fa69f46c..6691681e0 100644
--- a/system/helpers/string_helper.php
+++ b/system/helpers/string_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/string_helper.html
  */
 
@@ -215,12 +227,9 @@ if ( ! function_exists('random_string'))
 						case 'nozero'	:	$pool = '123456789';
 							break;
 					}
-
-					$str = '';
-					for ($i=0; $i < $len; $i++)
-					{
-						$str .= substr($pool, mt_rand(0, strlen($pool) -1), 1);
-					}
+					
+					$str = substr(str_shuffle(str_repeat($pool, ceil($len/strlen($pool)))),0,$len);
+					
 					return $str;
 				break;
 			case 'unique'	:
diff --git a/system/helpers/text_helper.php b/system/helpers/text_helper.php
index 33d7fa2fd..38b46e248 100644
--- a/system/helpers/text_helper.php
+++ b/system/helpers/text_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/text_helper.html
  */
 
diff --git a/system/helpers/typography_helper.php b/system/helpers/typography_helper.php
index 19b4eec03..b1cedcd9d 100644
--- a/system/helpers/typography_helper.php
+++ b/system/helpers/typography_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/typography_helper.html
  */
 
@@ -39,9 +51,7 @@ 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);
 	}
 }
@@ -78,11 +88,12 @@ if ( ! function_exists('auto_typography'))
  *
  * @access	public
  * @param	string
+ * @param   string
  * @return	string
  */
 if ( ! function_exists('entity_decode'))
 {
-	function entity_decode($str, $charset='UTF-8')
+	function entity_decode($str, $charset = NULL)
 	{
 		global $SEC;
 		return $SEC->entity_decode($str, $charset);
diff --git a/system/helpers/url_helper.php b/system/helpers/url_helper.php
index c524dddd1..5d907d00e 100755
--- a/system/helpers/url_helper.php
+++ b/system/helpers/url_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/url_helper.html
  */
 
@@ -532,13 +544,19 @@ if ( ! function_exists('url_title'))
  */
 if ( ! function_exists('redirect'))
 {
-	function redirect($uri = '', $method = 'location', $http_response_code = 302)
+	function redirect($uri = '', $method = 'auto', $http_response_code = 302)
 	{
 		if ( ! preg_match('#^https?://#i', $uri))
 		{
 			$uri = site_url($uri);
 		}
 
+		// IIS environment likely? Use 'refresh' for better compatibility
+		if (DIRECTORY_SEPARATOR != '/' && $method == 'auto')
+		{
+			$method = 'refresh';
+		}
+
 		switch($method)
 		{
 			case 'refresh'	: header("Refresh:0;url=".$uri);
diff --git a/system/helpers/xml_helper.php b/system/helpers/xml_helper.php
index cdd81ad70..0cf8f13dc 100644
--- a/system/helpers/xml_helper.php
+++ b/system/helpers/xml_helper.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Helpers
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/helpers/xml_helper.html
  */
 
diff --git a/system/language/english/calendar_lang.php b/system/language/english/calendar_lang.php
index 3e6312361..313eee1de 100644
--- a/system/language/english/calendar_lang.php
+++ b/system/language/english/calendar_lang.php
@@ -1,4 +1,29 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
 
 $lang['cal_su']			= "Su";
 $lang['cal_mo']			= "Mo";
diff --git a/system/language/english/date_lang.php b/system/language/english/date_lang.php
index c0ace16ef..515feec83 100644
--- a/system/language/english/date_lang.php
+++ b/system/language/english/date_lang.php
@@ -1,4 +1,29 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
 
 $lang['date_year'] = "Year";
 $lang['date_years'] = "Years";
diff --git a/system/language/english/db_lang.php b/system/language/english/db_lang.php
index 79b82c73a..f42e469e9 100644
--- a/system/language/english/db_lang.php
+++ b/system/language/english/db_lang.php
@@ -1,4 +1,29 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
 
 $lang['db_invalid_connection_str'] = 'Unable to determine the database settings based on the connection string you submitted.';
 $lang['db_unable_to_connect'] = 'Unable to connect to your database server using the provided settings.';
diff --git a/system/language/english/email_lang.php b/system/language/english/email_lang.php
index e3bd113cb..f2dba27a4 100644
--- a/system/language/english/email_lang.php
+++ b/system/language/english/email_lang.php
@@ -1,4 +1,29 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
 
 $lang['email_must_be_array'] = "The email validation method must be passed an array.";
 $lang['email_invalid_address'] = "Invalid email address: %s";
diff --git a/system/language/english/form_validation_lang.php b/system/language/english/form_validation_lang.php
index d1cf0399d..1960dfec1 100644
--- a/system/language/english/form_validation_lang.php
+++ b/system/language/english/form_validation_lang.php
@@ -1,4 +1,29 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
 
 $lang['required']			= "The %s field is required.";
 $lang['isset']				= "The %s field must have a value.";
diff --git a/system/language/english/ftp_lang.php b/system/language/english/ftp_lang.php
index 1e5168cf8..e934a19d9 100644
--- a/system/language/english/ftp_lang.php
+++ b/system/language/english/ftp_lang.php
@@ -1,4 +1,29 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
 
 $lang['ftp_no_connection']			= "Unable to locate a valid connection ID. Please make sure you are connected before peforming any file routines.";
 $lang['ftp_unable_to_connect']		= "Unable to connect to your FTP server using the supplied hostname.";
diff --git a/system/language/english/imglib_lang.php b/system/language/english/imglib_lang.php
index 66505da07..b431d39ed 100644
--- a/system/language/english/imglib_lang.php
+++ b/system/language/english/imglib_lang.php
@@ -1,4 +1,29 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
 
 $lang['imglib_source_image_required'] = "You must specify a source image in your preferences.";
 $lang['imglib_gd_required'] = "The GD image library is required for this feature.";
diff --git a/system/language/english/migration_lang.php b/system/language/english/migration_lang.php
index 4763ca243..d87ac8dee 100644
--- a/system/language/english/migration_lang.php
+++ b/system/language/english/migration_lang.php
@@ -1,11 +1,36 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 3.0
+ * @filesource
+ */
 
 $lang['migration_none_found']			= "No migrations were found.";
 $lang['migration_not_found']			= "This migration could not be found.";
 $lang['migration_multiple_version']		= "This are multiple migrations with the same version number: %d.";
 $lang['migration_class_doesnt_exist']	= "The migration class \"%s\" could not be found.";
 $lang['migration_missing_up_method']	= "The migration class \"%s\" is missing an 'up' method.";
-$lang['migration_missing_down_method']	= "The migration class \"%s\" is missing an 'up' method.";
+$lang['migration_missing_down_method']	= "The migration class \"%s\" is missing a 'down' method.";
 $lang['migration_invalid_filename']		= "Migration \"%s\" has an invalid filename.";
 
 
diff --git a/system/language/english/number_lang.php b/system/language/english/number_lang.php
index 908580914..a4e6c8996 100644
--- a/system/language/english/number_lang.php
+++ b/system/language/english/number_lang.php
@@ -1,4 +1,29 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
 
 $lang['terabyte_abbr'] = "TB";
 $lang['gigabyte_abbr'] = "GB";
diff --git a/system/language/english/profiler_lang.php b/system/language/english/profiler_lang.php
index 1111158c8..790abfaf3 100644
--- a/system/language/english/profiler_lang.php
+++ b/system/language/english/profiler_lang.php
@@ -1,4 +1,29 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
 
 $lang['profiler_database']		= 'DATABASE';
 $lang['profiler_controller_info'] = 'CLASS/METHOD';
diff --git a/system/language/english/unit_test_lang.php b/system/language/english/unit_test_lang.php
index 070bcd1f2..185d83d0d 100644
--- a/system/language/english/unit_test_lang.php
+++ b/system/language/english/unit_test_lang.php
@@ -1,4 +1,29 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
 
 $lang['ut_test_name']		= 'Test Name';
 $lang['ut_test_datatype']	= 'Test Datatype';
diff --git a/system/language/english/upload_lang.php b/system/language/english/upload_lang.php
index 4de9e9e74..2821055b7 100644
--- a/system/language/english/upload_lang.php
+++ b/system/language/english/upload_lang.php
@@ -1,4 +1,29 @@
 <?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package		CodeIgniter
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
 
 $lang['upload_userfile_not_set'] = "Unable to find a post variable called userfile.";
 $lang['upload_file_exceeds_limit'] = "The uploaded file exceeds the maximum allowed size in your PHP configuration file.";
diff --git a/system/libraries/Cache/Cache.php b/system/libraries/Cache/Cache.php
index 61e7aa761..269bf9b2d 100644
--- a/system/libraries/Cache/Cache.php
+++ b/system/libraries/Cache/Cache.php
@@ -1,13 +1,25 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * 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
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
  *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0
  * @filesource	
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Core
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		
  */
 class CI_Cache extends CI_Driver_Library {
diff --git a/system/libraries/Cache/drivers/Cache_apc.php b/system/libraries/Cache/drivers/Cache_apc.php
index de75719c4..f15cf8501 100644
--- a/system/libraries/Cache/drivers/Cache_apc.php
+++ b/system/libraries/Cache/drivers/Cache_apc.php
@@ -1,13 +1,25 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0
  * @filesource	
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Core
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		
  */
 
@@ -132,7 +144,7 @@ class CI_Cache_apc extends CI_Driver {
 	 */
 	public function is_supported()
 	{
-		if ( ! extension_loaded('apc') OR ! function_exists('apc_store'))
+		if ( ! extension_loaded('apc') OR ini_get('apc.enabled') != "1")
 		{
 			log_message('error', 'The APC PHP extension must be loaded to use APC Cache.');
 			return FALSE;
@@ -148,4 +160,4 @@ class CI_Cache_apc extends CI_Driver {
 // End Class
 
 /* End of file Cache_apc.php */
-/* Location: ./system/libraries/Cache/drivers/Cache_apc.php */
\ No newline at end of file
+/* Location: ./system/libraries/Cache/drivers/Cache_apc.php */
diff --git a/system/libraries/Cache/drivers/Cache_dummy.php b/system/libraries/Cache/drivers/Cache_dummy.php
index f96a68e27..965bb2bef 100644
--- a/system/libraries/Cache/drivers/Cache_dummy.php
+++ b/system/libraries/Cache/drivers/Cache_dummy.php
@@ -1,13 +1,25 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * 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
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
  *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Core
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link
  */
 
diff --git a/system/libraries/Cache/drivers/Cache_file.php b/system/libraries/Cache/drivers/Cache_file.php
index 6c37e7005..be392d3d2 100644
--- a/system/libraries/Cache/drivers/Cache_file.php
+++ b/system/libraries/Cache/drivers/Cache_file.php
@@ -1,13 +1,25 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * 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
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
  *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0
  * @filesource	
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Core
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		
  */
 
@@ -107,7 +119,14 @@ class CI_Cache_file extends CI_Driver {
 	 */
 	public function delete($id)
 	{
-		return unlink($this->_cache_path.$id);
+		if (file_exists($this->_cache_path.$id))
+		{
+			return unlink($this->_cache_path.$id);
+		}
+		else
+		{
+			return FALSE;
+		}
 	}
 
 	// ------------------------------------------------------------------------
@@ -192,4 +211,4 @@ class CI_Cache_file extends CI_Driver {
 // End Class
 
 /* End of file Cache_file.php */
-/* Location: ./system/libraries/Cache/drivers/Cache_file.php */
\ No newline at end of file
+/* Location: ./system/libraries/Cache/drivers/Cache_file.php */
diff --git a/system/libraries/Cache/drivers/Cache_memcached.php b/system/libraries/Cache/drivers/Cache_memcached.php
index 04aa81a5a..78cab25d4 100644
--- a/system/libraries/Cache/drivers/Cache_memcached.php
+++ b/system/libraries/Cache/drivers/Cache_memcached.php
@@ -1,13 +1,25 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * 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
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
  *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 2.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Core
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link
  */
 
@@ -64,7 +76,16 @@ class CI_Cache_memcached extends CI_Driver {
 	 */
 	public function save($id, $data, $ttl = 60)
 	{
-		return $this->_memcached->set($id, array($data, time(), $ttl), $ttl);
+		if (get_class($this->_memcached) == 'Memcached')
+		{
+			return $this->_memcached->set($id, array($data, time(), $ttl), $ttl);
+		}
+		else if (get_class($this->_memcached) == 'Memcache')
+		{
+			return $this->_memcached->set($id, array($data, time(), $ttl), 0, $ttl);
+		}
+		
+		return FALSE;
 	}
 
 	// ------------------------------------------------------------------------
diff --git a/system/libraries/Calendar.php b/system/libraries/Calendar.php
index df0fd6eeb..f5ef4d576 100644
--- a/system/libraries/Calendar.php
+++ b/system/libraries/Calendar.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/calendar.html
  */
 class CI_Calendar {
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php
index ab5a70c98..a0e1bb91e 100644
--- a/system/libraries/Cart.php
+++ b/system/libraries/Cart.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Shopping Cart
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/cart.html
  */
 class CI_Cart {
diff --git a/system/libraries/Driver.php b/system/libraries/Driver.php
index 9881c1eec..8df137e74 100644
--- a/system/libraries/Driver.php
+++ b/system/libraries/Driver.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 28a3d17b4..631b62e86 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/email.html
  */
 class CI_Email {
@@ -36,6 +48,7 @@ class CI_Email {
 	var	$smtp_pass		= "";		// SMTP Password
 	var	$smtp_port		= "25";		// SMTP Port
 	var	$smtp_timeout	= 5;		// SMTP Timeout in seconds
+	var	$smtp_crypto	= "";		// SMTP Encryption. Can be null, tls or ssl.
 	var	$wordwrap		= TRUE;		// TRUE/FALSE  Turns word-wrap on/off
 	var	$wrapchars		= "76";		// Number of characters to wrap at.
 	var	$mailtype		= "text";	// text/html  Defines email formatting
@@ -138,6 +151,7 @@ class CI_Email {
 	 * Initialize the Email Data
 	 *
 	 * @access	public
+	 * @param	bool
 	 * @return	void
 	 */
 	public function clear($clear_attachments = FALSE)
@@ -379,7 +393,19 @@ class CI_Email {
 	 */
 	public function message($body)
 	{
-		$this->_body = stripslashes(rtrim(str_replace("\r", "", $body)));
+		$this->_body = rtrim(str_replace("\r", "", $body));
+
+		/* strip slashes only if magic quotes is ON
+		   if we do it with magic quotes OFF, it strips real, user-inputted chars.
+
+		   NOTE: In PHP 5.4 get_magic_quotes_gpc() will always return 0 and
+			 it will probably not exist in future versions at all.
+		*/
+		if ( ! is_php('5.4') && get_magic_quotes_gpc())
+		{
+			$this->_body = stripslashes($this->_body);
+		}
+
 		return $this;
 	}
 
@@ -392,11 +418,11 @@ class CI_Email {
 	 * @param	string
 	 * @return	void
 	 */
-	public function attach($filename, $disposition = 'attachment')
+	public function attach($filename, $disposition = '', $newname = NULL)
 	{
-		$this->_attach_name[] = $filename;
+		$this->_attach_name[] = array($filename, $newname);
 		$this->_attach_type[] = $this->_mime_types(pathinfo($filename, PATHINFO_EXTENSION));
-		$this->_attach_disp[] = $disposition; // Can also be 'inline'  Not sure if it matters
+		$this->_attach_disp[] = empty($disposition) ? 'attachment' : $disposition; // Can also be 'inline'  Not sure if it matters
 		return $this;
 	}
 
@@ -1125,8 +1151,9 @@ class CI_Email {
 
 		for ($i=0; $i < count($this->_attach_name); $i++)
 		{
-			$filename = $this->_attach_name[$i];
-			$basename = basename($filename);
+			$filename = $this->_attach_name[$i][0];
+			$basename = ( is_null($this->_attach_name[$i][1]) ? basename($filename) : $this->_attach_name[$i][1] );
+				
 			$ctype = $this->_attach_type[$i];
 
 			if ( ! file_exists($filename))
@@ -1666,7 +1693,9 @@ class CI_Email {
 	 */
 	protected function _smtp_connect()
 	{
-		$this->_smtp_connect = fsockopen($this->smtp_host,
+		$ssl = ($this->smtp_crypto == 'ssl') ? 'ssl://' : NULL;
+
+		$this->_smtp_connect = fsockopen($ssl.$this->smtp_host,
 										$this->smtp_port,
 										$errno,
 										$errstr,
@@ -1679,6 +1708,21 @@ class CI_Email {
 		}
 
 		$this->_set_error_message($this->_get_smtp_data());
+
+		if ($this->smtp_crypto == 'tls')
+		{
+			$this->_send_command('hello');
+			$this->_send_command('starttls');
+
+			$crypto = stream_socket_enable_crypto($this->_smtp_connect, TRUE, STREAM_CRYPTO_METHOD_TLS_CLIENT);
+
+			if ($crypto !== TRUE)
+			{
+				$this->_set_error_message('lang:email_smtp_error', $this->_get_smtp_data());
+				return FALSE;
+			}
+		}
+
 		return $this->_send_command('hello');
 	}
 
@@ -1705,6 +1749,12 @@ class CI_Email {
 
 						$resp = 250;
 			break;
+			case 'starttls'	:
+
+						$this->_send_data('STARTTLS');
+
+						$resp = 220;
+			break;
 			case 'from' :
 
 						$this->_send_data('MAIL FROM:<'.$data.'>');
@@ -2059,4 +2109,4 @@ class CI_Email {
 // END CI_Email class
 
 /* End of file Email.php */
-/* Location: ./system/libraries/Email.php */
+/* Location: ./system/libraries/Email.php */
\ No newline at end of file
diff --git a/system/libraries/Encrypt.php b/system/libraries/Encrypt.php
index b30a8cf0b..c2cb808dd 100644
--- a/system/libraries/Encrypt.php
+++ b/system/libraries/Encrypt.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/encryption.html
  */
 class CI_Encrypt {
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index a34809e05..5663da981 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Validation
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/form_validation.html
  */
 class CI_Form_validation {
@@ -1079,7 +1091,7 @@ class CI_Form_validation {
 	 *
 	 * @access	public
 	 * @param	string
-	 * @return	string
+	 * @return	bool
 	 */
 	public function valid_ip($ip)
 	{
diff --git a/system/libraries/Ftp.php b/system/libraries/Ftp.php
index d7a8b3b02..70d7fc897 100644
--- a/system/libraries/Ftp.php
+++ b/system/libraries/Ftp.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/ftp.html
  */
 class CI_FTP {
diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index a8a0387d8..beb463b32 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Image_lib
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/image_lib.html
  */
 class CI_Image_lib {
diff --git a/system/libraries/Javascript.php b/system/libraries/Javascript.php
index 34e0d7001..15887cb95 100644
--- a/system/libraries/Javascript.php
+++ b/system/libraries/Javascript.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Javascript
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/javascript.html
  */
 class CI_Javascript {
diff --git a/system/libraries/Log.php b/system/libraries/Log.php
index bf10d4727..6ea905f73 100644
--- a/system/libraries/Log.php
+++ b/system/libraries/Log.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Logging
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/general/errors.html
  */
 class CI_Log {
diff --git a/system/libraries/Migration.php b/system/libraries/Migration.php
index 3734e18f5..94961b568 100644
--- a/system/libraries/Migration.php
+++ b/system/libraries/Migration.php
@@ -1,15 +1,27 @@
-<?php defined('BASEPATH') OR exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ *
+ * Licensed under the Open Software License version 3.0
+ *
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
- * @since		Version 1.0
+ * @since		Version 3.0
  * @filesource
  */
 
@@ -32,6 +44,8 @@ class CI_Migration {
 	protected $_migration_enabled = FALSE;
 	protected $_migration_path = NULL;
 	protected $_migration_version = 0;
+	protected $_migration_table = 'migrations';
+	protected $_migration_auto_latest = FALSE;
 
 	protected $_error_string = '';
 
@@ -57,7 +71,7 @@ class CI_Migration {
 		}
 
 		// If not set, set it
-		$this->_migration_path == '' AND $this->_migration_path = APPPATH . 'migrations/';
+		$this->_migration_path == '' AND $this->_migration_path = APPPATH.'migrations/';
 
 		// Add trailing slash if not set
 		$this->_migration_path = rtrim($this->_migration_path, '/').'/';
@@ -68,16 +82,31 @@ class CI_Migration {
 		// They'll probably be using dbforge
 		$this->load->dbforge();
 
+		// Make sure the migration table name was set.
+		if (empty($this->_migration_table))
+		{
+			show_error('Migrations configuration file (migration.php) must have "migration_table" set.');
+		}
+
 		// If the migrations table is missing, make it
-		if ( ! $this->db->table_exists('migrations'))
+		if ( ! $this->db->table_exists($this->_migration_table))
 		{
 			$this->dbforge->add_field(array(
 				'version' => array('type' => 'INT', 'constraint' => 3),
 			));
 
-			$this->dbforge->create_table('migrations', TRUE);
+			$this->dbforge->create_table($this->_migration_table, TRUE);
 
-			$this->db->insert('migrations', array('version' => 0));
+			$this->db->insert($this->_migration_table, array('version' => 0));
+		}
+
+		// Do we auto migrate to the latest migration?
+		if ($this->_migration_auto_latest == TRUE)
+		{
+			if ( ! $this->latest() )
+			{
+				show_error($this->error_string());
+			}
 		}
 	}
 
@@ -111,7 +140,7 @@ class CI_Migration {
 			// Moving Down
 			$step = -1;
 		}
-		
+
 		$method = $step === 1 ? 'up' : 'down';
 		$migrations = array();
 
@@ -119,7 +148,7 @@ class CI_Migration {
 		// But first let's make sure that everything is the way it should be
 		for ($i = $start; $i != $stop; $i += $step)
 		{
-			$f = glob(sprintf($this->_migration_path . '%03d_*.php', $i));
+			$f = glob(sprintf($this->_migration_path.'%03d_*.php', $i));
 
 			// Only one migration per step is permitted
 			if (count($f) > 1)
@@ -160,7 +189,7 @@ class CI_Migration {
 				}
 
 				include $f[0];
-				$class = 'Migration_' . ucfirst($match[1]);
+				$class = 'Migration_'.ucfirst($match[1]);
 
 				if ( ! class_exists($class))
 				{
@@ -183,7 +212,7 @@ class CI_Migration {
 			}
 		}
 
-		log_message('debug', 'Current migration: ' . $current_version);
+		log_message('debug', 'Current migration: '.$current_version);
 
 		$version = $i + ($step == 1 ? -1 : 0);
 
@@ -193,13 +222,13 @@ class CI_Migration {
 			return TRUE;
 		}
 
-		log_message('debug', 'Migrating from ' . $method . ' to version ' . $version);
+		log_message('debug', 'Migrating from '.$method.' to version '.$version);
 
 		// Loop through the migrations
 		foreach ($migrations AS $migration)
 		{
 			// Run the migration class
-			$class = 'Migration_' . ucfirst(strtolower($migration));
+			$class = 'Migration_'.ucfirst(strtolower($migration));
 			call_user_func(array(new $class, $method));
 
 			$current_version += $step;
@@ -223,12 +252,12 @@ class CI_Migration {
 	{
 		if ( ! $migrations = $this->find_migrations())
 		{
-			$this->_error_string = $this->line->lang('migration_none_found');
+			$this->_error_string = $this->lang->line('migration_none_found');
 			return false;
 		}
 
 		$last_migration = basename(end($migrations));
-		
+
 		// Calculate the last migration step from existing migration
 		// filenames and procceed to the standard version migration
 		return $this->version((int) substr($last_migration, 0, 3));
@@ -271,9 +300,9 @@ class CI_Migration {
 	protected function find_migrations()
 	{
 		// Load all *_*.php files in the migrations path
-		$files = glob($this->_migration_path . '*_*.php');
+		$files = glob($this->_migration_path.'*_*.php');
 		$file_count = count($files);
-		
+
 		for ($i = 0; $i < $file_count; $i++)
 		{
 			// Mark wrongly formatted files as false for later filtering
@@ -283,7 +312,7 @@ class CI_Migration {
 				$files[$i] = FALSE;
 			}
 		}
-		
+
 		sort($files);
 
 		return $files;
@@ -299,7 +328,7 @@ class CI_Migration {
 	 */
 	protected function _get_version()
 	{
-		$row = $this->db->get('migrations')->row();
+		$row = $this->db->get($this->_migration_table)->row();
 		return $row ? $row->version : 0;
 	}
 
@@ -314,7 +343,7 @@ class CI_Migration {
 	 */
 	protected function _update_version($migrations)
 	{
-		return $this->db->update('migrations', array(
+		return $this->db->update($this->_migration_table, array(
 			'version' => $migrations
 		));
 	}
diff --git a/system/libraries/Pagination.php b/system/libraries/Pagination.php
index cc62e660b..f470debeb 100644
--- a/system/libraries/Pagination.php
+++ b/system/libraries/Pagination.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Pagination
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/pagination.html
  */
 class CI_Pagination {
@@ -34,6 +46,7 @@ class CI_Pagination {
 	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 $use_page_numbers	= FALSE; // Use page number for segment instead of offset
 	var $first_link			= '&lsaquo; First';
 	var $next_link			= '&gt;';
 	var $prev_link			= '&lt;';
@@ -128,12 +141,15 @@ class CI_Pagination {
 			return '';
 		}
 
+		// Set the base page index for starting page number
+		$base_page = ($this->use_page_numbers) ? 1 : 0;
+
 		// Determine the current page number.
 		$CI =& get_instance();
 
 		if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE)
 		{
-			if ($CI->input->get($this->query_string_segment) != 0)
+			if ($CI->input->get($this->query_string_segment) != $base_page)
 			{
 				$this->cur_page = $CI->input->get($this->query_string_segment);
 
@@ -143,7 +159,7 @@ class CI_Pagination {
 		}
 		else
 		{
-			if ($CI->uri->segment($this->uri_segment) != 0)
+			if ($CI->uri->segment($this->uri_segment) != $base_page)
 			{
 				$this->cur_page = $CI->uri->segment($this->uri_segment);
 
@@ -151,6 +167,12 @@ class CI_Pagination {
 				$this->cur_page = (int) $this->cur_page;
 			}
 		}
+		
+		// Set current page to 1 if using page numbers instead of offset
+		if ($this->use_page_numbers AND $this->cur_page == 0)
+		{
+			$this->cur_page = $base_page;
+		}
 
 		$this->num_links = (int)$this->num_links;
 
@@ -161,18 +183,32 @@ class CI_Pagination {
 
 		if ( ! is_numeric($this->cur_page))
 		{
-			$this->cur_page = 0;
+			$this->cur_page = $base_page;
 		}
 
 		// Is the page number beyond the result range?
 		// If so we show the last page
-		if ($this->cur_page > $this->total_rows)
+		if ($this->use_page_numbers)
 		{
-			$this->cur_page = ($num_pages - 1) * $this->per_page;
+			if ($this->cur_page > $num_pages)
+			{
+				$this->cur_page = $num_pages;
+			}
+		}
+		else
+		{
+			if ($this->cur_page > $this->total_rows)
+			{
+				$this->cur_page = ($num_pages - 1) * $this->per_page;
+			}
 		}
 
 		$uri_page_number = $this->cur_page;
-		$this->cur_page = floor(($this->cur_page/$this->per_page) + 1);
+		
+		if ( ! $this->use_page_numbers)
+		{
+			$this->cur_page = floor(($this->cur_page/$this->per_page) + 1);
+		}
 
 		// Calculate the start and end numbers. These determine
 		// which number to start and end the digit links with
@@ -203,9 +239,9 @@ class CI_Pagination {
 		// Render the "previous" link
 		if  ($this->prev_link !== FALSE AND $this->cur_page != 1)
 		{
-			$i = $uri_page_number - $this->per_page;
+			$i = ($this->use_page_numbers) ? $uri_page_number - 1 : $uri_page_number - $this->per_page;
 
-			if ($i == 0 && $this->first_url != '')
+			if (($i == 0 OR ($this->use_page_numbers && $i == 1)) AND $this->first_url != '')
 			{
 				$output .= $this->prev_tag_open.'<a '.$this->anchor_class.'href="'.$this->first_url.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
 			}
@@ -223,9 +259,9 @@ class CI_Pagination {
 			// Write the digit links
 			for ($loop = $start -1; $loop <= $end; $loop++)
 			{
-				$i = ($loop * $this->per_page) - $this->per_page;
+				$i = ($this->use_page_numbers) ? $loop : ($loop * $this->per_page) - $this->per_page;
 
-				if ($i >= 0)
+				if ($i >= $base_page)
 				{
 					if ($this->cur_page == $loop)
 					{
@@ -233,7 +269,7 @@ class CI_Pagination {
 					}
 					else
 					{
-						$n = ($i == 0) ? '' : $i;
+						$n = ($i == $base_page) ? '' : $i;
 
 						if ($n == '' && $this->first_url != '')
 						{
@@ -253,17 +289,20 @@ class CI_Pagination {
 		// Render the "next" link
 		if ($this->next_link !== FALSE AND $this->cur_page < $num_pages)
 		{
-			$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;
+			$i = ($this->use_page_numbers) ? $this->cur_page + 1 : $this->cur_page * $this->per_page;
+
+			$output .= $this->next_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$this->prefix.$i.$this->suffix.'">'.$this->next_link.'</a>'.$this->next_tag_close;
 		}
 
 		// Render the "Last" link
 		if ($this->last_link !== FALSE AND ($this->cur_page + $this->num_links) < $num_pages)
 		{
-			$i = (($num_pages * $this->per_page) - $this->per_page);
+			$i = ($this->use_page_numbers) ? $num_pages : ($num_pages * $this->per_page) - $this->per_page;
+
 			$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
+		// Kill double slashes. Note: Sometimes we can end up with a double slash
 		// in the penultimate link so we'll kill all double slashes.
 		$output = preg_replace("#([^:])//+#", "\\1/", $output);
 
diff --git a/system/libraries/Parser.php b/system/libraries/Parser.php
index d223da020..0e6ab63d8 100644
--- a/system/libraries/Parser.php
+++ b/system/libraries/Parser.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Parser
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/parser.html
  */
 class CI_Parser {
diff --git a/system/libraries/Profiler.php b/system/libraries/Profiler.php
index 330acce73..8a2568d8e 100644
--- a/system/libraries/Profiler.php
+++ b/system/libraries/Profiler.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -27,7 +39,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Libraries
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/general/profiling.html
  */
 class CI_Profiler {
@@ -506,7 +518,7 @@ class CI_Profiler {
 
 		foreach ($this->CI->session->all_userdata() as $key => $val)
 		{
-			if (is_array($val))
+			if (is_array($val) || is_object($val))
 			{
 				$val = print_r($val, TRUE);
 			}
diff --git a/system/libraries/Session.php b/system/libraries/Session.php
index 2c8a80163..08d2ba4ba 100644
--- a/system/libraries/Session.php
+++ b/system/libraries/Session.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Sessions
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/sessions.html
  */
 class CI_Session {
@@ -317,7 +329,8 @@ class CI_Session {
 							'session_id'	=> md5(uniqid($sessid, TRUE)),
 							'ip_address'	=> $this->CI->input->ip_address(),
 							'user_agent'	=> substr($this->CI->input->user_agent(), 0, 120),
-							'last_activity'	=> $this->now
+							'last_activity'	=> $this->now,
+							'user_data'		=> ''
 							);
 
 
@@ -687,13 +700,7 @@ class CI_Session {
 	{
 		if (is_array($data))
 		{
-			foreach ($data as $key => $val)
-			{
-				if (is_string($val))
-				{
-					$data[$key] = str_replace('\\', '{{slash}}', $val);
-				}
-			}
+			array_walk_recursive($data, array(&$this, '_escape_slashes'));
 		}
 		else
 		{
@@ -702,9 +709,23 @@ class CI_Session {
 				$data = str_replace('\\', '{{slash}}', $data);
 			}
 		}
-
 		return serialize($data);
 	}
+	
+	/**
+	 * Escape slashes
+	 *
+	 * This function converts any slashes found into a temporary marker
+	 *
+	 * @access	private
+	 */
+	function _escape_slashes(&$val, $key)
+	{
+		if (is_string($val))
+		{
+			$val = str_replace('\\', '{{slash}}', $val);
+		}
+	}
 
 	// --------------------------------------------------------------------
 
@@ -724,19 +745,27 @@ class CI_Session {
 
 		if (is_array($data))
 		{
-			foreach ($data as $key => $val)
-			{
-				if (is_string($val))
-				{
-					$data[$key] = str_replace('{{slash}}', '\\', $val);
-				}
-			}
-
+			array_walk_recursive($data, array(&$this, '_unescape_slashes'));
 			return $data;
 		}
 
 		return (is_string($data)) ? str_replace('{{slash}}', '\\', $data) : $data;
 	}
+	
+	/**
+	 * Unescape slashes
+	 *
+	 * This function converts any slash markers back into actual slashes
+	 *
+	 * @access	private
+	 */
+	function _unescape_slashes(&$val, $key)
+	{
+		if (is_string($val))
+		{
+	 		$val= str_replace('{{slash}}', '\\', $val);
+		}
+	}
 
 	// --------------------------------------------------------------------
 
diff --git a/system/libraries/Sha1.php b/system/libraries/Sha1.php
index 1a657572b..477b92bcb 100644
--- a/system/libraries/Sha1.php
+++ b/system/libraries/Sha1.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -39,8 +51,8 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Encryption
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/general/encryption.html
+ * @author		EllisLab Dev Team
+ * @link		http://codeigniter.com/user_guide/libraries/encryption.html
  */
 class CI_SHA1 {
 
@@ -248,4 +260,4 @@ class CI_SHA1 {
 // END CI_SHA
 
 /* End of file Sha1.php */
-/* Location: ./system/libraries/Sha1.php */
\ No newline at end of file
+/* Location: ./system/libraries/Sha1.php */
diff --git a/system/libraries/Table.php b/system/libraries/Table.php
index def696776..8d0e11a43 100644
--- a/system/libraries/Table.php
+++ b/system/libraries/Table.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.3.1
  * @filesource
@@ -23,8 +35,8 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	HTML Tables
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/libraries/uri.html
+ * @author		EllisLab Dev Team
+ * @link		http://codeigniter.com/user_guide/libraries/table.html
  */
 class CI_Table {
 
@@ -528,4 +540,4 @@ class CI_Table {
 
 
 /* End of file Table.php */
-/* Location: ./system/libraries/Table.php */
\ No newline at end of file
+/* Location: ./system/libraries/Table.php */
diff --git a/system/libraries/Trackback.php b/system/libraries/Trackback.php
index b0a767822..e903ea7d0 100644
--- a/system/libraries/Trackback.php
+++ b/system/libraries/Trackback.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -23,7 +35,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Trackbacks
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/trackback.html
  */
 class CI_Trackback {
diff --git a/system/libraries/Typography.php b/system/libraries/Typography.php
index 734cec104..af6ca2bf2 100644
--- a/system/libraries/Typography.php
+++ b/system/libraries/Typography.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,8 +33,8 @@
  *
  * @access		private
  * @category	Helpers
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/helpers/
+ * @author		EllisLab Dev Team
+ * @link		http://codeigniter.com/user_guide/libraries/typography.html
  */
 class CI_Typography {
 
@@ -407,4 +419,4 @@ class CI_Typography {
 // END Typography Class
 
 /* End of file Typography.php */
-/* Location: ./system/libraries/Typography.php */
\ No newline at end of file
+/* Location: ./system/libraries/Typography.php */
diff --git a/system/libraries/Unit_test.php b/system/libraries/Unit_test.php
index 5bd7e801a..7afe40b09 100644
--- a/system/libraries/Unit_test.php
+++ b/system/libraries/Unit_test.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.3.1
  * @filesource
@@ -23,8 +35,8 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	UnitTesting
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/libraries/uri.html
+ * @author		EllisLab Dev Team
+ * @link		http://codeigniter.com/user_guide/libraries/unit_testing.html
  */
 class CI_Unit_test {
 
@@ -380,4 +392,4 @@ function is_false($test)
 
 
 /* End of file Unit_test.php */
-/* Location: ./system/libraries/Unit_test.php */
\ No newline at end of file
+/* Location: ./system/libraries/Unit_test.php */
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index 8f324de79..66e91c5b6 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -21,7 +33,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Uploads
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/file_uploading.html
  */
 class CI_Upload {
@@ -198,7 +210,8 @@ class CI_Upload {
 		// Set the uploaded data as class variables
 		$this->file_temp = $_FILES[$field]['tmp_name'];
 		$this->file_size = $_FILES[$field]['size'];
-		$this->file_type = preg_replace("/^(.+?);.*$/", "\\1", $_FILES[$field]['type']);
+		$this->_file_mime_type($_FILES[$field]);
+		$this->file_type = preg_replace("/^(.+?);.*$/", "\\1", $this->file_type);
 		$this->file_type = strtolower(trim(stripslashes($this->file_type), '"'));
 		$this->file_name = $this->_prep_filename($_FILES[$field]['name']);
 		$this->file_ext	 = $this->get_extension($this->file_name);
@@ -1008,6 +1021,67 @@ class CI_Upload {
 
 	// --------------------------------------------------------------------
 
+	/**
+	 * File MIME type
+	 *
+	 * Detects the (actual) MIME type of the uploaded file, if possible.
+	 * The input array is expected to be $_FILES[$field]
+	 *
+	 * @param	array
+	 * @return	void
+	 */
+	protected function _file_mime_type($file)
+	{
+		// Use if the Fileinfo extension, if available (only versions above 5.3 support the FILEINFO_MIME_TYPE flag)
+		if ( (float) substr(phpversion(), 0, 3) >= 5.3 && function_exists('finfo_file'))
+		{
+			$finfo = new finfo(FILEINFO_MIME_TYPE);
+			if ($finfo !== FALSE) // This is possible, if there is no magic MIME database file found on the system
+			{
+				$file_type = $finfo->file($file['tmp_name']);
+
+				/* According to the comments section of the PHP manual page,
+				 * it is possible that this function returns an empty string
+				 * for some files (e.g. if they don't exist in the magic MIME database)
+				 */
+				if (strlen($file_type) > 1)
+				{
+					$this->file_type = $file_type;
+					return;
+				}
+			}
+		}
+
+		// Fall back to the deprecated mime_content_type(), if available
+		if (function_exists('mime_content_type'))
+		{
+			$this->file_type = @mime_content_type($file['tmp_name']);
+			return;
+		}
+
+		/* This is an ugly hack, but UNIX-type systems provide a native way to detect the file type,
+		 * which is still more secure than depending on the value of $_FILES[$field]['type'].
+		 *
+		 * Notes:
+		 *	- a 'W' in the substr() expression bellow, would mean that we're using Windows
+		 *	- many system admins would disable the exec() function due to security concerns, hence the function_exists() check
+		 */
+		if (DIRECTORY_SEPARATOR !== '\\' && function_exists('exec'))
+		{
+			$output = array();
+			@exec('file --brief --mime-type ' . escapeshellarg($file['tmp_path']), $output, $return_code);
+			if ($return_code === 0 && strlen($output[0]) > 0) // A return status code != 0 would mean failed execution
+			{
+				$this->file_type = rtrim($output[0]);
+				return;
+			}
+		}
+
+		$this->file_type = $file['type'];
+	}
+
+	// --------------------------------------------------------------------
+
 }
 // END Upload Class
 
diff --git a/system/libraries/User_agent.php b/system/libraries/User_agent.php
index 0b77a7d42..a007acec8 100644
--- a/system/libraries/User_agent.php
+++ b/system/libraries/User_agent.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -18,12 +30,12 @@
 /**
  * User Agent Class
  *
- * Identifies the platform, browser, robot, or mobile devise of the browsing agent
+ * Identifies the platform, browser, robot, or mobile device of the browsing agent
  *
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	User Agent
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/user_agent.html
  */
 class CI_User_agent {
@@ -546,4 +558,4 @@ class CI_User_agent {
 
 
 /* End of file User_agent.php */
-/* Location: ./system/libraries/User_agent.php */
\ No newline at end of file
+/* Location: ./system/libraries/User_agent.php */
diff --git a/system/libraries/Xmlrpc.php b/system/libraries/Xmlrpc.php
index 5da6ea6ae..7b1e3fa6e 100644
--- a/system/libraries/Xmlrpc.php
+++ b/system/libraries/Xmlrpc.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -27,7 +39,7 @@ if ( ! function_exists('xml_parser_create'))
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	XML-RPC
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/xmlrpc.html
  */
 class CI_Xmlrpc {
@@ -347,7 +359,7 @@ class CI_Xmlrpc {
  * XML-RPC Client class
  *
  * @category	XML-RPC
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/xmlrpc.html
  */
 class XML_RPC_Client extends CI_Xmlrpc
@@ -425,7 +437,7 @@ class XML_RPC_Client extends CI_Xmlrpc
  * XML-RPC Response class
  *
  * @category	XML-RPC
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/xmlrpc.html
  */
 class XML_RPC_Response
@@ -604,7 +616,7 @@ class XML_RPC_Response
  * XML-RPC Message class
  *
  * @category	XML-RPC
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/xmlrpc.html
  */
 class XML_RPC_Message extends CI_Xmlrpc
@@ -1203,7 +1215,7 @@ class XML_RPC_Message extends CI_Xmlrpc
  * XML-RPC Values class
  *
  * @category	XML-RPC
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/xmlrpc.html
  */
 class XML_RPC_Values extends CI_Xmlrpc
@@ -1404,14 +1416,14 @@ class XML_RPC_Values extends CI_Xmlrpc
 	{
 		if ($utc == 1)
 		{
-			$t = strftime("%Y%m%dT%H:%M:%S", $time);
+			$t = strftime("%Y%m%dT%H:%i:%s", $time);
 		}
 		else
 		{
 			if (function_exists('gmstrftime'))
-				$t = gmstrftime("%Y%m%dT%H:%M:%S", $time);
+				$t = gmstrftime("%Y%m%dT%H:%i:%s", $time);
 			else
-				$t = strftime("%Y%m%dT%H:%M:%S", $time - date('Z'));
+				$t = strftime("%Y%m%dT%H:%i:%s", $time - date('Z'));
 		}
 		return $t;
 	}
diff --git a/system/libraries/Xmlrpcs.php b/system/libraries/Xmlrpcs.php
index 9cd332147..587b75040 100644
--- a/system/libraries/Xmlrpcs.php
+++ b/system/libraries/Xmlrpcs.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -31,7 +43,7 @@ if ( ! class_exists('CI_Xmlrpc'))
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	XML-RPC
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/xmlrpc.html
  */
 class CI_Xmlrpcs extends CI_Xmlrpc
diff --git a/system/libraries/Zip.php b/system/libraries/Zip.php
index 666327d5c..9101eecb4 100644
--- a/system/libraries/Zip.php
+++ b/system/libraries/Zip.php
@@ -4,10 +4,22 @@
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
  * @package		CodeIgniter
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
@@ -27,7 +39,7 @@
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Encryption
- * @author		ExpressionEngine Dev Team
+ * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/libraries/zip.html
  */
 class CI_Zip  {
diff --git a/system/libraries/javascript/Jquery.php b/system/libraries/javascript/Jquery.php
index baab83d25..4b8f76a10 100644
--- a/system/libraries/javascript/Jquery.php
+++ b/system/libraries/javascript/Jquery.php
@@ -1,27 +1,40 @@
 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
-
 /**
  * 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
+ *
+ * NOTICE OF LICENSE
+ * 
+ * Licensed under the Open Software License version 3.0
+ * 
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst.  It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to obtain it
+ * through the world wide web, please send an email to
+ * licensing@ellislab.com so we can send you a copy immediately.
  *
  * @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
+ * @author		EllisLab Dev Team
+ * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link		http://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
+ * @author		EllisLab Dev Team
+ * @link		http://codeigniter.com/user_guide/libraries/javascript.html
  */
  
 class CI_Jquery extends CI_Javascript {