HALO bugfixes

- couple of problems with concurrent threads
- green batch only for nap
- italics gone
- mdpi and & hdpi icons
- statusbar-icon gaps
- flipping batch when content changes
- batch fadeout without flip
- code style

Change-Id: Idfb145eb8e220bf224dd3d0e235e3647dcc82ed9

Conflicts:

	packages/SystemUI/res/layout/halo_speech.xml
	packages/SystemUI/src/com/android/systemui/statusbar/halo/Halo.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
fix lights out

Change-Id: I3682f7e9978c3a275c73e4a8ea04839af470e0c0

Conflicts:

	packages/SystemUI/res/layout/navigation_bar.xml
Some changes