Analogue-sequencer

Folks,

This beta version adds:
 * active track part copy - copies only playlists on unmuted tracks
 * quick mute access - in edit mode, hold FUNC and press PLAY/EDIT.
    while FUNC is held, step keys act as track mutes

Works OK here, let me know of any bugs. 
I'll need to update the manual sometime...

Cheers,
Colin f