Framework Track Control: Switch from broadcast to audio service"

Ordered broadcast is unreliable.
Switch to using the Audio Service's dispatchMediaKeyWithWakeLockToAudioService
as it sends the event to the correct receiver.
Navigation bar customization

Navigation bar customization: Padding fix
Fix padding calculation

Navigation bar customization: Fix left over glow
Invalidate all buttons, to avoid nearby glow interference

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/res/layout/navigation_bar.xml
	packages/SystemUI/res/values/ras_strings.xml
SystemUI: highlight quick settings and notification clear buttons

Actually make use of the drawables bestowed upon us by the Google
Navigation bar custom height

Conflicts:
	core/java/android/provider/Settings.java