openid_provider: Configure using Ansible rather than a shell script
openid_provider: Import basic templates for django-registration

Fetched from https://github.com/macdhuibh/django-registration-templates
commit 73b3d1905198c60eeebcc2fe2d764e98ba88e708.

These provide basic templates for the django-registration module. Thanks
to Anders Hofstee for providing them!
openid_provider: Add django-registration
openid_provider: Use django-registration-redux instead of django-registration

This is a fork of django-registration which is more up to date and seems
to not be broken with Django 1.7.
openid_provider: Add a view for /

Previously / produced an error page, now we actually have an index page!
openid_provider: Create an OpenID for each new user on registration