transparent statusbar

Currently just uses the same logic/values as the nav bar. We may want to separate those out

  Patch Set 9: Fix whitespace before merge

Change-Id: I6188ebd98684c8775b0447b4e6a1f09ec1a78887
Signed-off-by: Roman Birg <romanbirg@gmail.com>
Signed-off-by: PipelinerArd <kristoferard@gmail.com>

Conflicts:
	packages/SystemUI/res/layout/status_bar.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarView.java