quieten the output a little.
use double-underscores for private functions.

http://stackoverflow.com/questions/2289293/is-there-a-convention-for-naming-private-functions-in-bash
add my name to the read me.
update the copyright notice.
update the copyright dates.
remove deb file because it is now out of date.
clean up long lines.
lets allow the owner to modify the script.
install the dependencies

This is untested because I'm on a Mac.
Update the README with current install instructions.