FW: Toggles vibrate on click (1/2)

PS2: Make also BaseToggle type toggles to vibrate on single click.
PS3: Forget about observer

JB-MR2 Bring-up

PS2: respect global vibrate setting

Change-Id: I11d060d64365256c2f72695eb557c2a10c9c32ce

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/toggles/BaseToggle.java