HOVER: Option to only show up in Fullscreen-Mode [1/2]

Change-Id: I913fce9e54fc0c79f0b3406a4173bb4b55fd6e25

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/notification/Hover.java
HOVER: Add QS Tile && no more ugly status bar button [1/2]

Change-Id: I73b41f80762cb71fa86630314891e9670b43ea87

Conflicts:
	core/java/com/android/internal/util/liquid/QSConstants.java
	packages/SystemUI/res/values/liquid_strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java

Conflicts:
	core/java/com/android/internal/util/slim/QSConstants.java
	packages/SystemUI/res/values/slim_strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java