- basic tests
- fold in norvig's "lispy2" additions http://norvig.com/lispy2.html
- fix quote (should take an expr, not a list?)
- fix cond/cdr behavior working right; also empty tuple
- get minimal.scm to run
- if let
- use getopt
? multi-part lambdas
? apply
? re-write runge kutta with lists, not vectors