Navigation bar custom height [2/2]

Credits to Quarx2k
status bar: native battery percentage

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/BatteryMeterView.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsModel.java
volume rocker: volume key cursor control
Add global reboot option

Add global reboot option when long press power key and confirmation dialog
when user chooses to reboot device.

Conflicts:
	core/res/res/values/strings.xml
	core/res/res/values/symbols.xml