changed push button detection for push buttons now connected to GND
LCD data lines changed for port to rev2
fixing push button reading to only compare buttons with the lowest 4 bits of the compare string
adding test for both pots into demo
use the BS/BR method for setting and clearing bits to avoid messing with other bits on the port
fixing IIC formatting to use spaces rather than tabs
changing formatting of USART to use spaces rather than tabs
simple static PWM example for RG LED
pot read function now does not set LEDs. This allows pot read function to be used in RG LED test
RG LED code in demo project. PWM value read from pots as part of the test sequence
sequencing push button presses and changing pot turning order so that pots end up on, meaning the RG led ends up on
project added demonstrating setting up the HSE and PLL by writing to registers
Merge branch 'master' into porting_to_rev2
Merge branch 'master' into porting_to_rev2

Conflicts:
	jgowans-sample-projects/usart/main.c
Merge pull request #5 from jgowans/porting_to_rev2

Porting to rev2