* add media_player/clear_playlist and line-in/tv support to sonos
* add support source radio
* fix bug
* print TV/Line-In as media_title
* implement universal player
* add to demo platform
* Update demo.py
Better handling for demo object
* add unit tests
* fix unit test
Sonos (SoCo) supports add_uri_to_queue capability, making it possible
to stream media available via HTTP for example. This patch extends
media_player component and sonos platform to support this feature
* Log error for services called without required attributes, in
media_player, notify and thermostat platforms.
* Add fan property and methods in thermostat demo component.
* Add tests for notify file and thermostat demo component.
* Increase coverage of tests for media_player, notify and thermostat
platforms.
* Fix some PEP issues, but not all. Tests still have old linting
errors.