fixed bug on caching and pathway workaround
Unknown property filling error log

When search engines or users open feed page of a tag, error log is filled with

```PHP Notice:  Undefined property: stdClass::$title in /home/joomla3.2/public_html/components/com_tags/views/tag/view.feed.php on line 60```

I guess author wanted to get title of the tag, so I changed the code accordingly
Update view.feed.php
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
[imp][33941] Changed icon info to info-2 in com_admin sysinfo.
Closes #3883
Codestyle
[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