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
Merge "On-The-Spot: Add clear all recents button to user preferences." into kitkat