fix possible NPE

mTopFullscreenOpaqueWindowState is on certain conditions null
and will throw an NPE....check for it to prevend it

Change-Id: Ibfb9ad375a9bdfc4e759f55934e759b69c448b49
PowerWidget: Fix SysUI FC on Sleep button
BootMessage: show more info in boot dialog
Tell the users what package we are running dexOpt on currently

Change-Id: I412bebc69d7329a3dc8f8eb1f2c24a3e5efe4389

Conflicts:
	services/java/com/android/server/pm/PackageManagerService.java