- version: 0.03
  date:    Sun Jun 27 16:42:20 EDT 2004
  changes:
    - made it actually subclassable

- version: 0.02
  date:    Wed Jun  2 00:51:14 EDT 2004
  changes:
    - fixed title and documentation
    - added examples

- version: 0.01
  date:    Tue Jun  1 19:48:46 EDT 2004
  changes:
    - initial public release