Django-guest-user

Changes

- Added Mixins for use with class based views (CBV)
- Allow decorator usage without parentheses
- Added simple configuration checks (run by `manage.py check`) to ensure the authentication backend is correctly configured.
- Proper [documentation on readthedocs](https://django-guest-user.readthedocs.io/)

Changes

- Added contrib module for integrating [django-allauth](https://www.intenct.nl/projects/django-allauth/)

Changes

- Specify different redirect URLs for anonymous, guest and registered users in decorators
- Send a signal `guest_created` when a new guest is created
- Added more tests

Fixed

- Fixed wrong user-agent matching
- Fixed `GUEST_USER_ENABLED` setting actually being used

Changes
- Added username uniqueness checks!
- Added automated tests with `pytest`

Changes:

- Added a MAX_AGE setting to make the guest user lifespan shorter than the default sessions.
- Added removal command and admin utilities.

Initial release with features ported over from [`django-lazysignup`](https://github.com/danfairs/django-lazysignup).