Force clear cache on 'clear all'

Add long click to 'clear all' button in recents panel to force
clear caches, dentries and inodes

Change-Id: Iaa0ff526707be5b21bf746767f6241f4f0b6c39e
Koush broke my cache!!!

Change-Id: Ia5796146de1b876772ea1ca487f43d3e933862da
Merge pull request #19 from benjamingoodwin/cm-10.1

Clear Cache on LP Clear All Recents