Add lambdas/lets; simplify defines
Fix let
Add compound inequalities
Add boolean literals
Add '=' operator
Fix '(define (x) y)'
Add set command
Add 'do' loop
Fix strip_outer_parentheses
Fix 'let' for multiple binds
Fix let/let* mix-up
Compile arguments of function calls
Merge pull request #4 from usehashbang/lambdas

Lambdas, lets