Add battery bar. [1/2]

PS2:
Add charging animation.

PS2:
Adjust delay between frames of the charging animation.

Change-Id: I10731a08b0e252ccc1ad1b314d4d38c1cceb02dd

Conflicts:

	packages/SystemUI/res/layout/status_bar.xml
	packages/SystemUI/res/layout/status_bar_center_clock.xml
	packages/SystemUI/res/values/dimens.xml
	packages/SystemUI/src/com/android/systemui/statusbar/policy/BatteryBar.java
Add center clock (1/2)

Patch Set 2:
  Add super_status_bar_center_clock layout for sw600dp devices

Change-Id: Ibda358eac82e8f567d7e130c0f7d63b73d398cf5

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

Conflicts:

	core/java/android/provider/Settings.java
	packages/SystemUI/res/layout/status_bar_center_clock.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java