* Enhance yamaha component
This enhances the yamaha component to create 1 player per zone,
instead of only one play, which provides direct control of the various
zones for the player.
It also exposes play_media for NET_RADIO sources, which allows direct
setting of that.
This requires code changes in rxv 0.2.0, so the requirement dependency
is raised.
* Support current playback metadata for NET_RADIO
When on NET RADIO, support the currently playing information.
Sean Dague
7da47852d4