CoreMIDI backed

serge

MIDI hotplug support for MacOSX via native CoreMIDI backend is almost ready.
Main advantages:

no need to restart Pd if new MIDI device has been plugged (the problem can't be solved while using PortMidi backed)
support virtual source and destination devices: "to PureData" and "from PureData" for connection with other software
supports SysEx messages up to 65536 bytes
supports simultaneous intermixed SysEx output to several devices (unlike PortMidi backend)
fixed bug when Midi device name contains curly braces