tentative working Django 1.7.1 (bug 935538)

* wip don't merge
* removed funfactory and test_utils

- [x] tests seem a bit slower, mocking might be failing
- [x] need to check on the django-tastypie pinning
- [x] need to run baked
also, I think you should use ``os.environ.setdefault()`` in combination with the first call to that function up above. That way someone can do ``DJANGO_SETTINGS_MODULE=my_experiental_settings ./manage.py test``