found the bug in ObjectDetection that made the robot freak out during
the Beta Demonstration.  I was missing brackets after a specific while
loop, so some code was being iterated unvolontarily. Also, there was a
nav.setSpeeds() statement in a while loop for approaching the robot to a
styrofaom block. The latter caused jerking.
	-the brackets were added
	-the setSpeeds() statement only occurs once until the robot reaches the
block