CM and Macintosh MIDI Communications

[Tobias Kunze]

> the *midi-preferences*  should be:
>
> (( :OMS :APPLE :MTP :MIDIQT) (0 1))

actually, it does only matter if you have more than one midi manager driver, such as the OMS and Apple Midi Manager Driver, AND if both have ports enabled, in
which case cm connects to the first driver it finds according to the list.  if 
you have only one driver connected to a serial port, cm uses it (if it's in 
the midi-preferences* list, that is)

These things are most likely to change in the new version.  I hope to be able
to simplify things...  :|