Merge pull request #401 from Ritesh-patel/master

fix for global albums and some filters applied
fixed sql query optimisation  and performance issue
fix add-on tab js issue
fix activity privacy issue
Video preload set to true, Album gallery template issue fixed
fixed media uploader error for IE9 for activity and member's album section
opera/(IE<10) plupload issue solved for media gallery page
Merge pull request #404 from pushpakpop/master

Video preload set to true, Album gallery template issue fixed
Merge pull request #405 from Ritesh-patel/master

Video encoding and edit video thumbnails
Regenerate video thumbnail bulk action added