speed up the 'result' leak catcher
Display (optional) X graphs charting stats for each generation (using tk?)
Add support for simplifying routines
Support audit trails (this should just be a matter of augmenting the
	TRACK_BREED_TYPE code to save pointers to the parents then, after a
	new population has been bred, going through and culling out the dead
	branches.  It's not really worth doing until there's some sort of
	interface to stop execution and browse through a program's history)
