Added ability to add sprintf variables to JText string

[writing it up now...]
Merge remote-tracking branch 'remotes/upstream/master' into patch-9
Merge remote-tracking branch 'remotes/upstream/master' into patch-9
Merge remote-tracking branch 'remotes/upstream/master' into patch-9
Added ability to use custom non-language string as first part (can be used for concatenating other strings)
Merge remote-tracking branch 'remotes/upstream/master' into patch-9
Merge remote-tracking branch 'remotes/upstream/master' into patch-9
Merge remote-tracking branch 'remotes/upstream/master' into patch-9
Merge remote-tracking branch 'remotes/upstream/master' into patch-9
Merge remote-tracking branch 'remotes/upstream/master' into patch-9
clearfix fix

removes empty clear fix div and clearfixes preceding parent div instead.
Set mobile to true for CriOS
Merge remote-tracking branch 'remotes/upstream/master' into patch-9
Removes h tags from list items

This module displays differently from related modules, like mod_articles_mostread or mod_articles_latest as it sets header tags on the listed items.
Fixes notice in createTagsFromMetadata().
Add support for singular folder names to legacy mvc classes.
Added offset variable to gmail authentication plugin
Fix typos.
Update popup-imagemanager.css

update popup-imagemanager.css for the following tracker:
http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=30947

PS: is there are some less files there must be updatet to?
Added TagManager0002Test.php. Thanks Puneet Kala.