TODO
====

 * implement all Emacs Lisp types/objects

 * relational operators: < > <= >= = not

 * special forms: lambda, cond, and, or, let, let*, letf, letf*

 * successfully interpret ~/config/emacs one sexp at a time

 * primitives: list/cons functions, string functions,
   	       apply, eval,
               require, provide

 * macros

 * dynamic scoping (replace the current symbol table entirely)
 
 * look into CommonJS

 * merge with Ymacs? (probably not going to happen, would have to
   steal what we can from them)

 * too many things to list at this point ... small steps