Mentor driven changes to support testing before competition.
Reviewed with students, but these specific diffs were generated
by mentors:
	modified:   Arm Extension.c
	modified:   Arm Tilt.c
	modified:   Main Sheila.c
	modified:   Ramp Buttons.c
Merges from mentor_branch and fixes to mentor work:
	modified:   Arm Tilt.c
	modified:   Ramp Buttons.c