fix LUFA include path
dialbox.py to read from SGI dialbox through serial

http://www.ysbl.york.ac.uk/~emsley/coot/mbox-2004-2005/att-0547/eventio.py (archived)
new version of the converter utilizing internal CPU

The previous version used completely rewired innards of the dial
box.  I got myself another one and decided to use the internal
processor to do the encoder reading.  The Teensy now only performs
the protocol translation between the native serial protocol and
MIDI CC messages