Various changes
Well, it actually runs, if nothing else.  Still stupider than spit.
Fixed a stupid issue where the robot was learning to do poorly
We now have access to our weights!  Switch (define print) to #t in grid-main.ss, and it will print the weights being run!
Fixed the blast threshold
Merge branch 'master' into peterTony
Merge pull request #9 from texastony/peterTony

Peter's Amazing debugging work