Fix initial migration for articles model. Now using a generic user model
Fix boxes model initial migration. Now using generic user model.
Fix channels models migrations. Now using generic user model
Fix containers initial migration. Now using generic user model
Fix core models migrations. Now using generic user model
Fix flatpages models migrations. Now using generic user model
Fix images models migrations. Now using generic user model
Fix sources migrations. Now using generic user model
Fix boxes initial migration
Fix containers models initial migration. Now using generic user model