PIE: Panels are centered and have margins

Change-Id: I596f21c584b059465098b6245d506be276813d20
PIE: defaultcolor scheme

Change-Id: Ic98e7d49d4c6a0a0d5ea1a3d020b7df9c8b4f83e
PIE: exiting pie panels in landscape

Change-Id: I97a1e268eadd11518b5cbb28c048f187240bbae5
PIE: new, awesome repositioning system, better animations, better
looking snappoints, pie can be centered or appear where the swipe-up
happens, onconfigchanged bugfixes, panelswipe will not accidentally
trigger pie reposition

Change-Id: Ia1c3f4caee5432a6ab5d85e2e9e5b638471dc032