Sumovore Atmel Brainboard code upgrade

The Atmel Brainboard is a very popular add-on to our Sumovore Sumo robot. But with newer releases of the WinAVR GCC programming suite, there is a difference in the way the source code is handled that will make it not compile and load properly.

Bob Cook has been nice enough to
tweak our source
to make it more compatible, and compile-time error free! Thanks Bob!