git-svn-id: svn://localhost/trunk/ardour2@479 d708f5d6-7413-0410-9779-e7cbd77b26cf
Moved items from gtk2_ardour/utils to pbd3/convert. Various cleanups. git-svn-id: svn://localhost/trunk/ardour2@475 d708f5d6-7413-0410-9779-e7cbd77b26cf