'Delete application' development shortcut

Just another shortcut that enables the 'delete application' action
 in recent tasks list and in the notification area

Change-Id: Ia80882b9ec06f4dd14de1e087d29103d80fdd362

Conflicts:
	packages/SystemUI/res/menu/recent_popup_menu.xml
	packages/SystemUI/src/com/android/systemui/recent/RecentsPanelView.java