Added Django 1.7 App Config

* Renames the app to ‘Python Social Auth’ in the django admin
Merge branch 'django-1.7-app-config' of github.com:micahhausler/python-social-auth into micahhausler-django-1.7-app-config
PEP8 and module rename
Merge branch 'micahhausler-django-1.7-app-config'