- Completely separated notification types and backends
- Rendered subject and text are saved in database queue
- Simpler to create notification, no more .do('add')
- New get_recipients method
- Able to set a different subject and/or text per different backend
- Respect FAIL_SILENT in _get_backends(self)
- Completely removed the Django messages backend (it didn't make sense)
- Updated docs and usage examples