fixed bug on caching and pathway workaround
Fix Search Filter activation in com_users

In Search Tools, filter activation not working as expected.

Search Filter for activated users is not displaying super users as activation value is '0' in database.
This PR fixes it by adding 0 as a value for activated users.

Search Filter is not working for Unactivated users (activation key is not anymore 32 characters length).
This PR fixes it by controlling if activation is > 1. (which means that an activation key has been generated)
[#33919] Don't overwrite the path in the 'uri.request' JUri instance
Fix issues with XCache cache handler

Fix issues with XCache cache handler when it is enabled in the Joomla! Global Configuration but not available on the hosting environment.

http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=20476
[bug][32742] Don't wrap the update message with an alert box;
Fix #3689
[bug][33927] Modal.js bug in firefox;
Fix #3861
[bug][33731] Changed width of Media tooltip;
Fix #3884
[bug][33914] Fix ACL of redirect component; Fix #3888
[imp] Enable tests for php 5 on travis
Closes #3898
[bug][33344] Wrong filename detection of Content-Disposition URL headers. Fixes #3182
[imp][33446] Moving the readmore button to layouts;
Closes #3702
Codestyle
[bug][33103] Import the user plugins for onUserLoginFailure.
Fixes #2761
[imp][32762] improve jquery selector
Closes #3902
[bug][33942] Consistent use of clearfix in com_installer.
Fixes #3887
Codestyle; Closes #3903
Wrong Line Endings
[CODE STYLE] Correct Spelling mistake
Merge pull request #3905 from gunjanpatel/typo-codeStyle

[CODE STYLE] Correct Spelling mistake
[bug][33947] W3C error validation from com_categorie on backend.
Fixes #3901