* added addNote as main interface into package (not
addNoteByNumber). It's been a while since I've cut a release,
so there may be other things that have happened.
* Created distutils package.
* Minor code clean-up.
* Added documentation in-line and in text (MIDIFile.txt).
* All public functions should now be accessed thought
MIDIFile directly, and not the component tracks.
Date: 15 January 2009