Update libraries to latest stable released version (except gnomecanvasmm, which is strangely packaged...).
Fixes building (at least here).
git-svn-id: svn://localhost/ardour2/trunk@2790 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