NetworkTraffic tile: update tile for new network traffic options

-single press switches on download stats
-swipe left and right to switch states
-also rename to fit in better

Conflicts:
	core/java/com/android/internal/util/mahdi/QSConstants.java
	packages/SystemUI/res/values/mahdi_strings.xml
	packages/SystemUI/src/com/android/systemui/quicksettings/NetworkSpeedTile.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java