Center clock + circle battery colors + some adjustments in battery bar color (1/2)

Include:
- Clock alignment
- Clock colors
- Clock date, date style and date format
- Circle battery color
- Cricle battery text color
- Circle battery animation speed
- Reset to stock color button for clock, circle battery and battery bar

Thanks to kufikugel!

Change-Id: I1777bb9a00a8200a31738b8486780ca98b587e0b

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/BatteryBar.java