Metaboard Redux 1.0

Well as I look for new projects to work on, I have the time to work on stuff that I have been planning.  One of those projects was building a Metaboard... an Arduino clone that is very interesting to me.  It is similar to the series of Attiny85 micro-controllers I have been building, except that it uses the USBAsp protocol for programming.  So here is my version of the Metaboard...