Removed .defaults in import to make it compatible to Django >= 1.6

[phretor]

[phretor]

Progressively solving incompatibilities with Django 1.7.5

[montylounge]

Thanks @phretor for posting commits. Please note that https://github.com/revsys/django-fack became the more stable version of this project. I will review your commits with time but I can't promise I'll merge them very quickly. I would want to setup the proper environment and run through the commits to ensure they are stable first. But thank you for posting these. Much appreciated.