The best of the forks

#121 prompted me to create this overdue PR. See explanation there.
@stas This code was from a commit by @iandunn who would probably be better placed to answer your query. I did not thoroughly test the standalone version. My own view is that it would be highly unlikely for anyone to use BP Courseware without BP, let alone then convert to using BP. I agree with your suggestion - a `group` CPT would help conversion to a BP context should that occur.