Commented out the debugging statements meant to understand why 186 files are not seen as already transformed. The puzzle is still not solved.
Merge branch 'master' of github.com:paepcke/json_to_relation
In manageEdxDb.py: ensured that MySQL is accessed as (MySQL user) root whether or not the script is called as root or not.
Merge branch 'master' of github.com:paepcke/json_to_relation: had not pulled 'Finished adding video_id to ActivityGrade: mostly indexing.'