Merge branch 'feature/user-guide-work' into develop

Conflicts:
	user_guide_src/source/installation/upgrade_210.rst
	user_guide_src/source/installation/upgrade_211.rst
	user_guide_src/source/installation/upgrade_212.rst

10 files changed, 409 insertions, 8 deletions

diff --git a/user_guide_src/source/DCO.rst b/user_guide_src/source/DCO.rst
new file mode 100644
index 000000000..c8f9b49c6
--- /dev/null
+++ b/user_guide_src/source/DCO.rst
@@ -0,0 +1,27 @@
+#####################################
+Developer's Certificate of Origin 1.1
+#####################################
+
+By making a contribution to this project, I certify that:
+
+(1)	The contribution was created in whole or in part by me and I
+	have the right to submit it under the open source license
+	indicated in the file; or
+
+(2)	The contribution is based upon previous work that, to the best
+	of my knowledge, is covered under an appropriate open source
+	license and I have the right under that license to submit that
+	work with modifications, whether created in whole or in part
+	by me, under the same open source license (unless I am
+	permitted to submit under a different license), as indicated
+	in the file; or
+
+(3)	The contribution was provided directly to me by some other
+	person who certified (1), (2) or (3) and I have not modified
+	it.
+
+(4)	I understand and agree that this project and the contribution
+	are public and that a record of the contribution (including all
+	personal information I submit with it, including my sign-off) is
+	maintained indefinitely and may be redistributed consistent with
+	this project or the open source license(s) involved.
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 37063f752..f69ce5c15 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -138,6 +138,7 @@ Release Date: Not Released
    -  Added unbuffered_row() method for getting a row without prefetching whole result (consume less memory).
 
 -  Libraries
+
    -  CI_Session now respects php.ini's session.gc_probability and session.gc_divisor
    -  Added max_filename_increment config setting for Upload library.
    -  CI_Loader::_ci_autoloader() is now a protected method.
@@ -178,7 +179,7 @@ Release Date: Not Released
 	 -  Added support for setting custom attributes.
 	 -  Deprecated usage of the "anchor_class" setting (use the new "attributes" setting instead).
 	 -  Added $config['reuse_query_string'] to allow automatic repopulation of query string arguments, combined with normal URI segments.
-   -  Added the ability to use a proxy with the :doc:`XML-RPC Library <libraries/xmlrpc.rst>`.
+   -  Added the ability to use a proxy with the :doc:`XML-RPC Library <libraries/xmlrpc>`.
 
 -  Core
 
diff --git a/user_guide_src/source/contributing/index.rst b/user_guide_src/source/contributing/index.rst
new file mode 100644
index 000000000..2ede0e6e5
--- /dev/null
+++ b/user_guide_src/source/contributing/index.rst
@@ -0,0 +1,105 @@
+###########################
+Contributing to CodeIgniter
+###########################
+
+CodeIgniter is a community driven project and accepts contributions of code
+and documentation from the community. These contributions are made in the form
+of Issues or `Pull Requests <http://help.github.com/send-pull-requests/>`_ on
+the `EllisLab CodeIgniter repository
+<https://github.com/EllisLab/CodeIgniter>`_ on GitHub.
+
+Issues are a quick way to point out a bug. If you find a bug or documentation
+error in CodeIgniter then please check a few things first:
+
+- There is not already an open Issue
+- The issue has already been fixed (check the develop branch, or look for
+  closed Issues)
+- Is it something really obvious that you fix it yourself?
+
+Reporting issues is helpful but an even better approach is to send a Pull
+Request, which is done by "Forking" the main repository and committing to your
+own copy. This will require you to use the version control system called Git.
+
+**********
+Guidelines
+**********
+
+Before we look into how, here are the guidelines. If your Pull Requests fail
+to pass these guidelines it will be declined and you will need to re-submit
+when you’ve made the changes. This might sound a bit tough, but it is required
+for us to maintain quality of the code-base.
+
+PHP Style
+=========
+
+All code must meet the `Style Guide
+<http://codeigniter.com/user_guide/general/styleguide.html>`_, which is
+essentially the `Allman indent style
+<http://en.wikipedia.org/wiki/Indent_style#Allman_style>`_, underscores and
+readable operators. This makes certain that all code is the same format as the
+existing code and means it will be as readable as possible.
+
+Documentation
+=============
+
+If you change anything that requires a change to documentation then you will
+need to add it. New classes, methods, parameters, changing default values, etc
+are all things that will require a change to documentation. The change-log
+must also be updated for every change. Also PHPDoc blocks must be maintained.
+
+Compatibility
+=============
+
+CodeIgniter is compatible with PHP 5.2.4 so all code supplied must stick to
+this requirement. If PHP 5.3 or 5.4 functions or features are used then there
+must be a fallback for PHP 5.2.4.
+
+Branching
+=========
+
+CodeIgniter uses the `Git-Flow
+<http://nvie.com/posts/a-successful-git-branching-model/>`_ branching model
+which requires all pull requests to be sent to the "develop" branch. This is
+where the next planned version will be developed. The "master" branch will
+always contain the latest stable version and is kept clean so a "hotfix" (e.g:
+an emergency security patch) can be applied to master to create a new version,
+without worrying about other features holding it up. For this reason all
+commits need to be made to "develop" and any sent to "master" will be closed
+automatically. If you have multiple changes to submit, please place all
+changes into their own branch on your fork.
+
+One thing at a time: A pull request should only contain one change. That does
+not mean only one commit, but one change - however many commits it took. The
+reason for this is that if you change X and Y but send a pull request for both
+at the same time, we might really want X but disagree with Y, meaning we
+cannot merge the request. Using the Git-Flow branching model you can create
+new branches for both of these features and send two requests.
+
+Signing
+=======
+You must sign your work, certifying that you either wrote the work or
+otherwise have the right to pass it on to an open source project. git makes
+this trivial as you merely have to use `--signoff` on your commits to your
+CodeIgniter fork.
+
+.. code-block:: bash
+
+	git commit --signoff
+
+or simply
+
+.. code-block:: bash
+
+	git commit -s
+
+This will sign your commits with the information setup in your git config, e.g.
+
+	Signed-off-by: John Q Public <john.public@example.com>
+
+If you are using Tower there is a "Sign-Off" checkbox in the commit window. You 
+could even alias git commit to use the -s flag so you don’t have to think about 
+it.
+
+By signing your work in this manner, you certify to a "Developer's Certificate 
+or Origin". The current version of this certificate is in the :doc:`/DCO` file
+in the root of this documentation.
diff --git a/user_guide_src/source/index.rst b/user_guide_src/source/index.rst
index c89b41c74..e42425bab 100644
--- a/user_guide_src/source/index.rst
+++ b/user_guide_src/source/index.rst
@@ -91,6 +91,17 @@ Helper Reference
 	
 	helpers/index
 
+***************************
+Contributing to CodeIgniter
+***************************
+
+.. toctree::
+	:glob:
+	:titlesonly:
+	
+	contributing/index
+	DCO
+
 .. toctree::
 	:glob:
 	:titlesonly:
@@ -99,6 +110,7 @@ Helper Reference
 	*
 	overview/index
 	general/requirements
+	general/welcome
 	installation/index
 	general/index
 	libraries/index
diff --git a/user_guide_src/source/installation/upgrade_210.rst b/user_guide_src/source/installation/upgrade_210.rst
index 647537d1f..5874bfc86 100644
--- a/user_guide_src/source/installation/upgrade_210.rst
+++ b/user_guide_src/source/installation/upgrade_210.rst
@@ -8,9 +8,7 @@ replacing the index.php file with a static one.
 Step 1: Update your CodeIgniter files
 =====================================
 
-Replace all files and directories in your "system" folder and replace
-your index.php file. If any modifications were made to your index.php
-they will need to be made fresh in this new one.
+Replace all files and directories in your "system" folder.
 
 .. note:: If you have any custom developed files in these folders please
 	make copies of them first.
@@ -19,4 +17,10 @@ Step 2: Replace config/user_agents.php
 ======================================
 
 This config file has been updated to contain more user agent types,
-please copy it to _application/config/user_agents.php*.
\ No newline at end of file
+please copy it to _application/config/user_agents.php*.
+
+Step 3: Update your user guide
+==============================
+
+Please also replace your local copy of the user guide with the new
+version.
\ No newline at end of file
diff --git a/user_guide_src/source/installation/upgrade_211.rst b/user_guide_src/source/installation/upgrade_211.rst
index 80248a758..59faca8e6 100644
--- a/user_guide_src/source/installation/upgrade_211.rst
+++ b/user_guide_src/source/installation/upgrade_211.rst
@@ -30,4 +30,4 @@ session table will need to change
 
 ::
 
-	ALTER TABLE ci_sessions CHANGE ip_address ip_address varchar(45) default '0' NOT NULL
+	ALTER TABLE ci_sessions CHANGE ip_address ip_address varchar(45) default '0' NOT NULL
\ No newline at end of file
diff --git a/user_guide_src/source/installation/upgrade_212.rst b/user_guide_src/source/installation/upgrade_212.rst
index cdbf977d7..205ad8622 100644
--- a/user_guide_src/source/installation/upgrade_212.rst
+++ b/user_guide_src/source/installation/upgrade_212.rst
@@ -13,4 +13,10 @@ your index.php file. If any modifications were made to your index.php
 they will need to be made fresh in this new one.
 
 .. note:: If you have any custom developed files in these folders please
-	make copies of them first.
\ No newline at end of file
+	make copies of them first.
+
+Step 2: Update your user guide
+==============================
+
+Please also replace your local copy of the user guide with the new
+version.
\ No newline at end of file
diff --git a/user_guide_src/source/installation/upgrading.rst b/user_guide_src/source/installation/upgrading.rst
index 3609e4213..545f344ee 100644
--- a/user_guide_src/source/installation/upgrading.rst
+++ b/user_guide_src/source/installation/upgrading.rst
@@ -8,6 +8,7 @@ upgrading from.
 -  :doc:`Upgrading from 2.1.2 to 3.0.0 <upgrade_300>`
 -  :doc:`Upgrading from 2.1.1 to 2.1.2 <upgrade_212>`
 -  :doc:`Upgrading from 2.1.0 to 2.1.1 <upgrade_211>`
+-  :doc:`Upgrading from 2.0.3 to 2.1.0 <upgrade_210>`
 -  :doc:`Upgrading from 2.0.2 to 2.0.3 <upgrade_203>`
 -  :doc:`Upgrading from 2.0.1 to 2.0.2 <upgrade_202>`
 -  :doc:`Upgrading from 2.0 to 2.0.1 <upgrade_201>`
diff --git a/user_guide_src/source/libraries/config.rst b/user_guide_src/source/libraries/config.rst
index 694896353..08d9c2905 100644
--- a/user_guide_src/source/libraries/config.rst
+++ b/user_guide_src/source/libraries/config.rst
@@ -175,7 +175,7 @@ This function retrieves the URL to your site, plus an optional path such
 as to a stylesheet or image.
 
 The two functions above are normally accessed via the corresponding
-functions in the :doc:`URL Helper <helpers/url_helper>`.
+functions in the :doc:`URL Helper </helpers/url_helper>`.
 
 $this->config->system_url();
 *****************************
diff --git a/user_guide_src/source/license_afl.rst b/user_guide_src/source/license_afl.rst
new file mode 100644
index 000000000..ca39be9b6
--- /dev/null
+++ b/user_guide_src/source/license_afl.rst
@@ -0,0 +1,245 @@
+###################################
+Academic Free License ("AFL") v 3.0
+###################################
+
+This Academic Free License (the "License") applies to any original work of
+authorship (the "Original Work") whose owner (the "Licensor") has placed the
+following licensing notice adjacent to the copyright notice for the Original
+Work:
+
+*Licensed under the Academic Free License version 3.0*
+
+
+*****************************
+1) Grant of Copyright License
+*****************************
+
+Licensor grants You a worldwide, royalty-free, non-exclusive, sublicensable
+license, for the duration of the copyright, to do the following:
+
+	*a)* to reproduce the Original Work in copies, either alone or as part of
+	a collective work;
+
+	*b)* to translate, adapt, alter, transform, modify, or arrange the
+	Original Work, thereby creating derivative works ("Derivative Works")
+	based upon the Original Work;
+
+	*c)* to distribute or communicate copies of the Original Work and
+	Derivative Works to the public, *under any license of your choice that
+	does not contradict the terms and conditions, including Licensor's
+	reserved rights and remedies, in this Academic Free License*;
+
+	*d)* to perform the Original Work publicly; and
+
+	*e)* to display the Original Work publicly.
+
+
+**************************
+2) Grant of Patent License
+**************************
+
+Licensor grants You a worldwide, royalty-free, non-exclusive, sublicensable
+license, under patent claims owned or controlled by the Licensor that are
+embodied in the Original Work as furnished by the Licensor, for the duration
+of the patents, to make, use, sell, offer for sale, have made, and import the
+Original Work and Derivative Works.
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+making modifications to it and all available documentation describing how to
+modify the Original Work. Licensor agrees to provide a machine-readable copy
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+********************************
+4) Exclusions From License Grant
+********************************
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+Neither the names of Licensor, nor the names of any contributors to the
+Original Work, nor any of their trademarks or service marks, may be used to
+endorse or promote products derived from this Original Work without express
+prior permission of the Licensor. Except as expressly stated herein, nothing
+in this License grants any license to Licensor's trademarks, copyrights,
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+interpreted to prohibit Licensor from licensing under terms different from
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+of the Original Work or Derivative Works in any way such that the Original
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+works are distributed or communicated to those persons or made available as an
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+the Original Work or a Derivative Work as a distribution under section 1(c).
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+all copyright, patent, or trademark notices from the Source Code of the
+Original Work, as well as any notices of licensing and any descriptive text
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+
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+
+*****************************
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+If, at any time, You expressly assented to this License, that assent indicates
+your clear and irrevocable acceptance of this License and all of its terms and
+conditions. If You distribute or communicate copies of the Original Work or a
+Derivative Work, You must make a reasonable effort under the circumstances to
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+Work, and doing so without honoring these terms and conditions is prohibited
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+dealing"). This License shall terminate immediately and You may no longer
+exercise any of the rights granted to You by this License upon your failure to
+honor the conditions in Section 1(c).
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+
+*********************************
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+*********************************
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+licensee alleging that the Original Work infringes a patent. This termination
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+*****************************************
+11) Jurisdiction, Venue and Governing Law
+*****************************************
+
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+its primary business, and under the laws of that jurisdiction excluding its
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+
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+12) Attorneys' Fees
+*******************
+
+In any action to enforce the terms of this License or seeking damages relating
+thereto, the prevailing party shall be entitled to recover its costs and
+expenses, including, without limitation, reasonable attorneys' fees and costs
+incurred in connection with such action, including any appeal of such action.
+This section shall survive the termination of this License.
+
+
+*****************
+13) Miscellaneous
+*****************
+
+If any provision of this License is held to be unenforceable, such provision
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+
+
+***************************************
+14) Definition of "You" in This License
+***************************************
+
+"You" throughout this License, whether in upper or lower case, means an
+individual or a legal entity exercising rights under, and complying with all
+of the terms of, this License. For legal entities, "You" includes any entity
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+outstanding shares, or (iii) beneficial ownership of such entity.
+
+
+****************
+15) Right to Use
+****************
+
+You may use the Original Work in all ways not otherwise restricted or
+conditioned by this License or by law, and Licensor promises not to interfere
+with or be responsible for such uses by You.
+
+
+********************************
+16) Modification of This License
+********************************
+
+This License is Copyright © 2005 Lawrence Rosen. Permission is granted to
+copy, distribute, or communicate this License without modification. Nothing in
+this License permits You to modify this License as applied to the Original
+Work or to Derivative Works. However, You may modify the text of this License
+and copy, distribute or communicate your modified version (the "Modified
+License") and apply it to other original works of authorship subject to the
+following conditions: (i) You may not indicate in any way that your Modified
+License is the "Academic Free License" or "AFL" and you may not use those
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+specified in the first paragraph above with the notice "Licensed under <insert
+your license name here>" or with a notice of your own that is not confusingly
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\ No newline at end of file