Settings: Battery bar (2/2)

For educational purposes
Based off of: http://review.cyanogenmod.org/#/c/31913/
Change-Id: I714d22b740d1aaa25aee04180cc5e7dd55f363ec

Conflicts:

	res/layout/dialog_color_picker.xml
	res/values/cm_strings.xml
	src/com/android/settings/cyanogenmod/StatusBar.java