skip password length enforcement test
Prevent reflected XSS by sanitizing messages passed as GET params.
Fix syntax error in JavaScript for single-facility form display logic.
Add title tag & better image for partially completed exercises to knowledge map.
Make playlist sidebar scrollable.
Include default points of "0" for ExerciseLogModel, to avoid errors.
Only allow, and use by default, JSON in tastypie.
Related video links on exercise view working again.
Tweaks to frontpage styling and fix for search autocomplete dropdown.
Don't try writing exercise logs etc for non-logged in users.
Only show related video links for videos that exist.
Clear old messages when switching between entries in a playlist.
Merge pull request #2141 from aronasorman/playlists

Fix failing tests due to playlists mega-PR
Merge pull request #2139 from learningequality/release-0.12.0

Release 0.12.0 to Nalanda RCT 2
Display error message on quiz page when not logged in.
Tweaks to quizzes and tests.
Merge branch 'nalanda-rct2' of github.com:learningequality/ka-lite into backbone
Simplify sidebar entry template now that we have titles for all entries.
Merge branch 'playlists' into nalanda-rct2
Prevent "pid ref'ed before assignment" error in cherrypy.