Add short version of charging / discharging labels. Extended getBatteryInfo method to take in additional flag for short version labels.
Change-Id: I499ce59493f1345c3084d48829ded5117d470e44
(cherry picked from commit e686bf4514d9c1116a4eaa8af285f44613e23b36)
Remove the battery saver notification and instead create a detail
panel within QS that allows it to be turned on and off.
Change-Id: I54654d26183586fa171fda04877a840701f8ef33