Proper block translate wrapping for outputting template variables.
Don't run videoscan when setting up central server instances.
Fix #1098: Display video as available if it really is available
Fixing #1106, another small bug, and an unclear variable name.
Merge pull request #1107 from aronasorman/1098

Display available videos as actually available
Merge branch 'release-0.11' of github.com:learningequality/ka-lite into dubbed_video_support

Conflicts:
	kalite/main/views.py
	kalite/templates/search_page.html
Changing schema for subtitles, doing mapping from lang to lang code, fixing small bugs.