Port HALO from UKG (2/2)

Change-Id: I3290905dc1285bbe487f371a9e95595db0516efd
Revert "PIE" in preparation for slim pie
Conflicts:
	core/java/android/provider/Settings.java
	core/res/res/values/dimens.xml
	core/res/res/values/symbols.xml
	packages/SystemUI/res/layout/pie_expanded_panel.xml
	packages/SystemUI/res/values/colors.xml
	packages/SystemUI/res/values/dimens.xml
	packages/SystemUI/res/values/strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/PieControl.java
	packages/SystemUI/src/com/android/systemui/statusbar/PieControlPanel.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/Clock.java
	packages/SystemUI/src/com/android/systemui/statusbar/tablet/NotificationPanel.java
	packages/SystemUI/src/com/android/systemui/statusbar/view/PieItem.java
	packages/SystemUI/src/com/android/systemui/statusbar/view/PieMenu.java
	packages/SystemUI/src/com/android/systemui/statusbar/view/PieStatusPanel.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java

Change-Id: I62e67cbabe21134e551353fede36d560fe2c7160