b) single-thread Tranzport implementation
c) implement BasicUI to share functionality across multiple
controllers
d) various minor fixes here and there
git-svn-id: svn://localhost/trunk/ardour2@468 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