PWM Changes

Swapped the Light and the PWM pin - NEED TO FIX THIS INSIDE THE BOX

PWM is now on pin 5 (OCR1A) which uses Timer3 on the chip instead of
Timer0. This allows me to increase the prescaler and set it to FastPWM
instead of phase-correct PWM to give me a frequency of 7812.5Hz instead
of a measly 900ish

Also removed the analogWrite, and am now bashing the OCR3A register
(Pin 5 Output) directly for PWM