Coffin: Jinja2 extensions for Django

This used to be a full-featured standalone adapter. With Django adding support for other template backends, it's approach didn't make sense anymore. Please use django_jinja instead - you won't regret it:

https://github.com/niwinz/django-jinja

This module now is a lean collection of some Django tags that are not included in django-jinja, namely:

• {% url %}
• {% spaceless %}
• {% with %}
• {% load %} (as a noop)
• {% get_media_prefix %}
• {% get_static_prefix %}
• {% static %} (in a base variant, and with django.contrib.staticfiles support)