Merged BRANCHES/DEV/KEVINR3 to HEAD
   72208: ACE-1828 - Cannot find system files on the Search page in Share. Removed system created files from search results for LiveSearch.

git-svn-id: https://svn.alfresco.com/repos/alfresco-open-mirror/alfresco/HEAD/root@72209 7033f55c-6c29-4ad8-afba-765cb616e738
Fix for ACE-1829 - Comment link on Doc Lib page does not activate tinyMCE. Also now activates focus on Edit of a comment.

git-svn-id: https://svn.alfresco.com/repos/alfresco-open-mirror/alfresco/HEAD/root@72213 7033f55c-6c29-4ad8-afba-765cb616e738
Various fixes for PdfJs, general previewing, Aikau modules, etc.

git-svn-id: https://svn.alfresco.com/repos/alfresco-open-mirror/alfresco/HEAD/root@72229 7033f55c-6c29-4ad8-afba-765cb616e738
git-svn-id: https://svn.alfresco.com/repos/alfresco-open-mirror/alfresco/HEAD/root@72251 7033f55c-6c29-4ad8-afba-765cb616e738
git-svn-id: https://svn.alfresco.com/repos/alfresco-open-mirror/alfresco/HEAD/root@72266 7033f55c-6c29-4ad8-afba-765cb616e738
ACE-1856: Further updates to ensure that the search thumbnail links can actually be clicked on

git-svn-id: https://svn.alfresco.com/repos/alfresco-open-mirror/alfresco/HEAD/root@72272 7033f55c-6c29-4ad8-afba-765cb616e738