- `make test` runs tox against Python 2.7/3.3/3.4/3.5 and Django
1.8/1.9.
- Building universal wheels with PEP-0496 Environment Markers.
- Build wheel from tox environment to ensure consistency.
- Consistent layout for setup and requirements files, now using PEP-0409
Environment Markers.
- Dropping support for Django 1.7 (didn't work anyway).
- Moving repository to https://github.com/django-ddp/django-ddp (new
Github organisation).
- Update changelog.
