Advanced low battery indicator options (2/2)

http://i.imgur.com/EUwRPh7.png

http://i.imgur.com/LX4SrC0.png

Change-Id: Ib3d4c8361f5563729965fe140f379bd7393b4a0a

Conflicts:
	res/values/custom_arrays.xml
	res/values/custom_strings.xml
	src/com/android/settings/fuelgauge/PowerUsageSummary.java