start over with AOSP SystemUI

Change-Id: Ib3b0a54554edc01d55d16d1af5b91f65f160b5f5

Conflicts:
	core/res/res/drawable/background_holo_dark.xml
	core/res/res/drawable/background_holo_light.xml
	core/tests/coretests/apks/version_nosys/AndroidManifest.xml
	packages/SystemUI/res/layout-land/active_display_content.xml
	packages/SystemUI/res/layout-sw600dp/active_display_content.xml
	packages/SystemUI/res/layout/active_display_content.xml
	packages/SystemUI/src/com/android/systemui/SearchPanelView.java
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/activedisplay/ActiveDisplayView.java