Framework: Quick Access Ribbon (Part 1 of 2)

This patchset removes power widgets and replaces it with
a smaller version of the quick settings panel.

Change-Id: I347736ae61590c279baed8403d1e82a4241576d5

Conflicts:
	packages/SystemUI/res/layout/status_bar_expanded.xml
	packages/SystemUI/res/values/attrs.xml
	packages/SystemUI/src/com/android/systemui/quicksettings/QuickSettingsTile.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/powerwidget/PowerButton.java
	packages/SystemUI/src/com/android/systemui/statusbar/powerwidget/PowerWidget.java