Custom RemoteUserBackend for setting email
Begin using a Collaboration object to track repo permissions

This will ultimately allow for a more flexible way of doing permissions
as people will be able to add attributes to the various users.
Improve appearance of adding users
Make collaboration inline in admin
Remove unused import
First run at permissions
Fix owner/user issue
Use custom form class for inlineformset
Modify the config worker to support more flexible permissions
Fix inaccuracy
Fix IntegrityError and DoesNotExist 500s