Rework signal handling for bundles so that all changes should now be noticed by port matrices.
git-svn-id: svn://localhost/ardour2/branches/3.0@4501 d708f5d6-7413-0410-9779-e7cbd77b26cf
for ins and outs. The matrix will now be arranged so that more ports are labelled
horizontally than vertically, to aid readability.
git-svn-id: svn://localhost/ardour2/branches/3.0@4467 d708f5d6-7413-0410-9779-e7cbd77b26cf
signal show notionally "flow" from left to bottom or from top to right.
Some layout cleanups.
git-svn-id: svn://localhost/ardour2/branches/3.0@4416 d708f5d6-7413-0410-9779-e7cbd77b26cf