temporarily remove SR on capa alerts to fix problem submissions (LMS-2474)
Merge pull request #3105 from edx/adam/hotifx-js

temporarily remove SR on capa alerts to fix problem submissions (LMS-247...
Fix multiple videos on page

If there are several videos on page, make sure that
the global onYouTubeIframeAPIReady function is properly
setup so that all callbacks are trigerred when the YouTube API
loads.

BLD-972
Adding acceptance test for multiple videos.

Part of BLD-972.
Merge pull request #3124 from edx/valera/fix_multiple_videos_on_page_RELEASE

Valera/fix multiple videos on page release
Update video
Use bulk email as is for course email
Remove git version from STATIC_URL
Disable cache busting
Disable cache busting for studio as well
Add XForwardedFor middleware
Change redirect URL when disconnected
Change logo url when not logged in
Add create_account server events to tracking log