Merge pull request #7 from lukechampine/newlang

Add rule to make delbrot
Merge pull request #8 from lukechampine/newlang

Language overhaul
change make delbrot flag and fix go_AST
saner handling of go()
major reorganization
Merge pull request #9 from lukechampine/reorg

Code reorganization
fix chaining operator
refactor assignment and add => operator