Forward port button/keyboard backlight options

Change-Id: Ica02fad15392201b719144c4b911407d5b370cee

Conflicts:

	res/values/cm_strings.xml
Forward port 'Swap volume buttons' (3/3)

Change-Id: I44a2b37b95848fff24c53c4c3561a3c000c487a1

Conflicts:

	res/values/cm_strings.xml
add Voice Wakeup switch

 * Requires CYNGN package to do the actual work.

Change-Id: I1c129adf1104dd95d3afb76224af4c9ba2b5db96

Conflicts:

	proguard.flags