The best of the forks

#121 prompted me to create this overdue PR. See explanation there.
> why not register a group custom post type and use it instead of the one provided by BuddyPress

It's been a long time since I worked on that, but I'm guessing I chose that route because I didn't see any reason to implement any BuddyPress-specific features, since the point was the make it available to users who weren't running BP. You make a good point about the potential for someone migrating to BP later on, although I'm not sure how if that'd be common enough to warrant the extra time.

Also, just as FYI, my entire branch was still alpha, and will probably needs some work before merging into stable BPCW.