This set of patches adds initial support for the Sony Motion Controller via
cleaned-up initial patches from Pavel Machek, streamlines LED initialization
and state updates, adds a comment to explain why the Sixaxis has so many axes
and why they spill over into the multi-touch space and makes some general
cosmetic corrections.

Pavel, could you test the motion controller patches?  I didn't alter the basic
logic from your patch so everything should work, but I'd like to make sure.