python-django-formtools-2.1-bp150.2.3

- Update to version 2.1
  * Added testing for Django 1.11 (no code changes were required).
  * Added support for Django 2.0.
  * Dropped testing for Python 3.3 (now end-of-life) on Django 1.8.
- Fix unit tests
- Implement singlespec version

- Initial package