Don't require admin for getting topic tree in coach reports.
Merge branch 'IDOC_coach_reports' of git://github.com/bcipolli/ka-lite into IDOC_coach_reports
Added "main.custom_context_processors.custom" back in to fix videos.
added video capability to data generation. Added video fields to student view, api calls, and other views.
Merge remote-tracking branch 'jamalex/IDOC_coach_reports' into IDOC_coach_reports