Battery percentage indicator

This adds battery % left of battery icon. It looks like samsung battery style.
Many thanks to Dirk for his help.

PS5: Move initialization and addStateChangeCallbacks for mBatteryTextView
     up with other Controllers. Style changes to more closely match status bar
     icons.
PS6: Add battery text to animation transitions for status bar and remove -2dip marginEnd

Change-Id: I867163707210ba6f642a1b028b1a991b4548cfff
Signed-off-by: kecinzer <kecinzer@gmail.com>
Hideable battery icon

PS2: Create ContentObserver in BatteryMeterView and utilize it's onAttached/onDetached
PS3: Remove .save's

Change-Id: Ic14dd1c12220a447364a82ba258e9fdac8eb017b
Signed-off-by: kecinzer <kecinzer@gmail.com>
SystemUI: add basic gradle config to allow import

naughty naughty!

Change-Id: I3ab01ee31f0ea6bffe148ddfb9be0731ad59d957
Signed-off-by: Roman Birg <romanbirg@gmail.com>
Merge branch 'kitkat' of https://github.com/AOKP/frameworks_base into kitkat