mPreloadedRecentApps is handled internally by the preloading functions... checking it twice buys us nothing.

Change-Id: I3372c6ab2de82d395d39f40b4a5f193708899c66
Make hardware longpress back not fire normal back, and not repeat when held

Change-Id: Ia75720e669ed0b3e4249136b719ae67270dcf4e9
On hardware key devices, ACTION_APP hardware buttons block the input threat... for stuff like Camera, that's a LOONNNGGG time to block.

Change-Id: Ibd498b3aa82eaccf200b02f0be823d2a50bcc7d5