renamed when the track they were associated with was renamed. Also added a safeguard to check whether the renaming destination location exists already. git-svn-id: svn://localhost/ardour2/trunk@741 d708f5d6-7413-0410-9779-e7cbd77b26cf
renamed when the track they were associated with was renamed. Also added a safeguard to check whether the renaming destination location exists already. git-svn-id: svn://localhost/ardour2/trunk@741 d708f5d6-7413-0410-9779-e7cbd77b26cf