git-svn-id: svn://localhost/trunk/ardour2@444 d708f5d6-7413-0410-9779-e7cbd77b26cf
b) move tranzport and generic midi into separate dirs under "surfaces" git-svn-id: svn://localhost/trunk/ardour2@442 d708f5d6-7413-0410-9779-e7cbd77b26cf