@joelpittet, 'group arguments' apply to all groups. If you want to do it per ...

@joelpittet, 'group arguments' apply to all groups. If you want to do it per group, you can as well place it inside the YML file.

And 'groups path' is not meant to be possessive. It is just a plural. Like I said earlier, it is a path where you place all the group definitions. The other 'path' key we have would have been 'migrations path' but since that is the main key you need to return, I made it 'path' for simplicity.