Completely untested other than it compiles, runs, and records somewhat (need to merge again).
git-svn-id: svn://localhost/ardour2/branches/midi@999 d708f5d6-7413-0410-9779-e7cbd77b26cf
associated stuff are now separated (with common things in base classes).
Extremely dirty and in progress, but builds, runs, and audio/midi tracks/busses
all look (and really are) distinct in the GUI.
git-svn-id: svn://localhost/ardour2/branches/midi@691 d708f5d6-7413-0410-9779-e7cbd77b26cf
