status bar: brightness control

Conflicts:
	core/java/android/provider/Settings.java
quick settings: power menu tile
onClick reboot dialog
onLongClick reboot recovery dialog
Make use of the new quick settings tiles layout, no need for additional xml
clear all recents button

Clear all recents button cleanUp
reference https://github.com/CyanogenMod/android_frameworks_base/commit/6471aee7bec8e8d2eb179db9605d3b6a12ac48f6

Add touch feedback to the clear all recents button
moved clear all recents to bottom|right