Garcia-pilot updates:

	* robots/primotion/buttonManager.hh,
	robots/primotion/ledManager.hh: Comments.

	* robots/primotion/dashboard.hh, robots/primotion/dashboard.cc:
	Turn off fault detection for now, it doesn't work with moving in
	curves at the moment.  Reenable sensor value polling, but only
	while the robot is stationary.

	* robots/primotion/garcia-pilot.cc: Change the handleCallbacks and
	select timeouts to 5ms.

	* robots/primotion/wheelManager.hh,
	robots/primotion/wheelManager.cc: Lower the ranger thresholds when
	movements are short in length.  This should help us maneuver into
	tighter areas, like the robot pens.