2nd whack on the display board. Not sure where my head was with the first try, the nixie foot print was wrong and the anode drivers were just all wrong.

I still have a small fix on the cpu card itself, but I will hold that fix off for a bit. It was nothing an X-acto knife and a jumper didn't fix. 

I will be submitting the board changes to github as well as changes to the code to ease configuration.