fixed inside FR priority; shutdown EE implemented, except ChElevThread
Merge branch 'rwong_branch' into branch_graphics

Conflicts:
	Assignment1_Elevators/Assignment1_Elevators/IOProgram.cpp
Merge branch 'branch_graphics' of https://github.com/rmawong/EECE314 into branch_graphics

Conflicts:
	Assignment1_Elevators/Assignment1_Elevators/IOProgram.cpp