Django 1.10 Support

[stephenfin]

Overview

Django 1.10 is almost complete. We should support it, in addition to the existing versions of Django (currently 1.6 - 1.8, and soon 1.9).

Dependencies

Django 1.9 support (#25) must be added first.

Additional Work Items

Like any refactoring, we can take this opportunity to clean up some less pretty aspects of the code base.

Alternatives

None.

Useful resources

• Django 1.10 Preliminary Release Notes

[daxtens]

I have some patches in progress for this.

It seems we simply need to do the following:

• Bump django-rest-framework to 3.4. This requires disabling it for Django 1.7.
• remove 'load cycle from future' in a template.
• convert:

-        return qs.select_related('user__username')
+        return qs.prefetch_related('user')

I'll get the patches out at some point.

[stephenfin]

I also have this done (it's waiting on the management command patches to merge). Whoever gets them up first :)