- I've got LABELS expanding properly now. Oops...
- CPS is returning UNDEF when I pass it the form I want it to
  convert.
- CPC-LAMBDA is not expanding correctly. I need to look back at the
  original source.
- I think the bug is in CPC-FORM. I think it's returning UNDEF to CPC
  when CPC is called on the body of lambda expression passed to
  CPC-LAMBDA.
- Fixed the bug in CPC-FORM. I changed how LABELS works, which broke
  how the function was implemented.
- Cleaned up a funky error message. (Just removed the word "at".)
- Form CPC is (so far) working!! I discovered that NIL is defined as
  true in this implementation of Scheme. I 'm not sure if I want to
  keep this... I've hacked together the code to work around this
  little "feature". Still have more testing to do...
- NIL is now a false value in IF. This broke the MAP function, which I
  fixed. This change is in both metacircular.pl and scheme.pl.
- CPC-BEGIN is not working quite yet, but I think I've got the basic
  idea down. I think I'll need something like CPC-SET! as
  well...
- CPS-transformation is mostly working. There are still unresolved
  issues with functions such as SET!, READ, etc.
- I need to clean up the implementation of strings. There's a bug in
  some cases when a "." appears in the string... I think.
- Added APROPOS to scheme.pl.
- BUG: This only scans the global enviroment. Should I have it scan
  the enviroment in which it is called?
- TODO: Add this to metacircular.pl.
- Added APROPOS to metacircular.pl.
- BUG: See bug from commit 7b78353e7e6ed0a749c389046cbefddd09771281.
- doom.org is a little file to help my cousin and I with our
  presentation at the State Science fair. We took first place!