Settings: Battery bar (2/2)

Patch Set 1:    * initial release
Patch Set 2:    * minor code cleanup

Patch Set 5:    * disable navbar options on devices without a navbar
                * clean up whitespace

Change-Id: I6303194046f91a40f045d6cac1f1377195280589
Signed-off-by: Paul Beeler <sparksco@gmail.com>

Conflicts:
	res/values/arrays.xml
	res/values/strings.xml
	res/xml/status_bar.xml
	src/com/android/settings/saber/StatusBar.java