Status Bar Auto Unhide on Notification When in Fullscreen (1/2)

- Automatically unhide the status bar when in fullscreen to show new
notification tickers and rehide again after the ticker is done

PS2:
Fix whitespace

PS3:
- Hide status bar in lights out or after ticker is halted
- Use better method for status bar state signaling instead of intent
broadcast

[log]

Change-Id: Ifc53b09133fdd78278dae0524e584f7db65e8c24

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java