Hacked up the Monulator code to provide a base for bringing up the main board. At present, the code will:
- Switch to using an attached 12MHz crystal.
- Initialize the serial port.
- Initialize all GPIO pins to proper defaults (all power supplies off, except the microcontroller's, of course).
- Blink the LED languidly and indefinitely.
Merge branch 'master' of github.com:jboone/daisho