On-The-Spot: Add clear all recents button to user preferences.

PS3: Add proper drawable thanks to / by Dani Rosenkamp @DaNi--
     Fix wrong change id (from abandoned commit)
PS4: More logic drawable

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Change-Id: I632730bee6b409072689e07fb1084ceaca5b1d49

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/res/values-ca/pa_strings.xml
	packages/SystemUI/res/values-es/pa_strings.xml
	packages/SystemUI/res/values/ras_strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/res/values/simpleaosp_strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
Long press recents to switch to last app

-Fixed confirmation helper
Change-Id: I8c52a7b40d4229d523bccc1c9246673b82f5b48b
Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java

Conflicts:
	packages/SystemUI/res/values/simpleaosp_strings.xml
Merge branch 'kk' of https://github.com/SimpleAOSP/android_frameworks_base into kk