Edited main functionality to include preliminary version of PWM.  Included some additional comments to help clarify things.

NOTE: Not sure if this is finished or not, but I do not see anything else that I can do right now.
Completed PWM and made it modular in another header file.
Uploaded skeleton code for button press (SW1)
Updated the PWM_Update function to account for motors on at 100% in middle of pot
Updated PWM functions for proper functionality
Merge branch 'master' into Nico

Conflicts:
	Lab3.c
Cleaned and fixed code from bad branch merger