* robots/primotion/garcia-pilot.cc: Turn off the fall sensors,
	since they have a tendency to go off for no good reason.

	* robots/primotion/pilotButtonCallback.cc: A short-click on the
	user-button now shuts the garcia down.

	* robots/primotion/pilotClient.cc,
	robots/primotion/wheelManager.hh,
	robots/primotion/wheelManager.cc: Set the wheel speed.