Platypush

Added

- Added [Jellyfin integration](https://git.platypush.tech/platypush/platypush/-/issues/208).

Fixed

- Merged several PRs from `dependabot`.

- Fixed management of the `CN` field in the `calendar.ical` plugin.

Added

- Refactored the `dbus` integration. The plugin and backend have been merged into a
single plugin component, and the ability to subscribe to custom signals has been
added.

Fixed

- Proper support for empty payloads on the integrations that trigger a `SensorDataChangeEvent`.
- Fixed possible infinite recursion on the Pushbullet integration in case of errors where the
error and close handlers keep calling each other in a loop.

Added

- Added `rss` integration (replaces the cumbersome and deprecated `backend.http.poll`).

Fixed

- Fixed timezone handling in calendar integrations.
- Fixed handling of ignored directories in the `file.monitor` backend.

Added

- Added support for audio tracks in Plex integration.

Changed

- Web server uWSGI wrapper changed from `uwsgi` to `gunicorn`.

Fixed

- Fixed client ID assignment logic in MQTT backends to prevent client ID clashes and reconnections
(closes 205).
- Updated LTR559 integration to be compatible with the new API.
- Updated Chromecast integration to be compatible with `pychromecast >= 10`.
- Better handling of media errors.

Added

- Added support for converting webpages to markdown in `http.webpage.simplify`
even if no `outfile` is specified.

Fixed

- Improved robustness of the ICal calendar parser in case some fields (e.g. `*status`)
are not defined.

Added

- Added `mastodon` plugin.
- Added `chat.irc` plugin.
- Added `mailgun` plugin.

Fixed

- Fixed `switchbot.status` method in case of virtual devices.
- Fixed `platypush[alexa]` optional package installation.