Added
- Added [Wallabag integration](https://git.platypush.tech/platypush/platypush/issues/224).
- Added [Mimic3 TTS integration](https://git.platypush.tech/platypush/platypush/issues/226).
- Added `qos` attribute to `mqtt.publish` and all the plugins derived from `mqtt`.
Changed
- Replaced PyJWT dependency with the Python-native `rsa` package. This will
make the installation much lighter, compatible with more systems and less
dependent on the platform-specific libraries required by `cryptography`.
> **NOTE**: This is a breaking change for those who use the `backend.http` API
> with JWT tokens. The new logic encrypts and encodes the payload in a
> different format, therefore previously generated tokens are no longer
> compatible.