update license info to include all past contributors
removed usage note from header

removed Toby Peterson from author creds, (he removed himself from the
original script ~2007)

bump version to 0.03dev for clarity that these are NOT stable releases
add comments, clean up debugging messages

The code is now more thoroughly commented, especially the potentially
confusing sections. Debugging messages now call though a common sub
to reduce 3 lines at call site to 1 and improve readability.

Also trying to standardize on Irssi:print vs Irssi::print. I'm not sure
which is more desirable at this point.

Fixed some issues with 'and' not being '&&' hah.
missing semicolons and bad subroutine parameter

all better now!
send private messages with $server->command()

fixes #5