Revert "Removed emulated bluetooth media controls, they don't work. Tested the regular method with Play Music, Spotify, and Pandora; works fine."

This reverts commit a2df8dfdb94e70bdb68ca8d1c7d7ea16d2bced7a.
Ugg, reverted the bluetooth control. I dunno. Added an Idle update call
when toggling inverse media controls.