Stub out new backends module
Stub out new backends module

stefankoegl/django-registration-couchdb,schmidsi/django-registration,danielsokolowski/django-registration,wuyuntao/django-registration,stefankoegl/django-couchdb-utils,stefankoegl/django-registration-couchdb,stefankoegl/django-couchdb-utils,wuyuntao/django-registration,ogirardot/django-registration,stefankoegl/django-registration-couchdb,stefankoegl/django-couchdb-utils,danielsokolowski/django-registration,ogirardot/django-registration,bruth/django-registration2,ratio/django-registration,andresdouglas/django-registration