Tokenize input.
Remove nonsensical method.
Gross support for macros.
Remove newline from prompt.
Add description for RJSymbol.
Most of the basics are back to working with the new parse/eval routines.
Fix bug in if expansion.
Fix tail call optimization so it actuall works.
Fix a number of bugs related to macro expansion.
Ignore files.
Add stringification method.
Fix bugs in cons implementation.
Stop tracking local files.
Fix not implementation.
Don't print sentinel values.
Implement 'length'.
Fix static analysis warnings.
Use dispatch_once to generate EOF object.
Don't strip newline.
Fixed 'null?' implementation for new design.