clearfix fix

removes empty clear fix div and clearfixes preceding parent div instead.
Set mobile to true for CriOS
Add inline code coverage to Travis
[#30729] Template Editor does not Display well in FireFox. Thanks
Aleksander Linkov.
[#30691] TinyMCE shows buttons with onclick attribute without space and
duplicate class. Thanks Dennis Hermatski.
[#30125] Search module does not take into account the 'search only'
selected. Thanks Brian Teeman.
[#30797] *Wrapper module url field should be required. Thanks Jean-Marie
Simonet.
[#30017] Problems with calendar pop up in Chrome. Thanks Achal Aggarwal.
[#30800] Blog item is not rendering intro image. Thanks David Hurley.
[#30787] Select Tags filter cannot be translated correctly. Thanks Elin
Waring.
[#30431] Removed unused css file: editor_content.css. Thanks Nick Savov.
[#30869] Incorrect table names used in the #__content_types table.
Thanks Elin Waring.
 # Reverting [#30125] Search module does not take into account the
'search only' selected. Breaks Search.
Fix failing system test for markup change in Template Manager.
[#30125] Search module does not take into account the 'search only'
selected. Thanks Luke Collymore.
[#30769] Still There are Reference to Joomla! 3.0 Version in 3.1. Thanks
Jean-Marie Simonet.
[#28288] Unnesessary initialiazing of tooltips in category blog. Thanks
Dennis Hermatski.
[#30394] *Javascript translations are not available if caching is
enabled. Thanks Dennis Hermatski.
Finish system tests for back end Tags Manager. Thanks Puneet Kala.
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.