* Added code to select the first cut by default in the 'Edit Cart'
in rdlibrary(1) if no validity constraints in said cut are found.
* Fixed regressions in the 'Edit Cart' dialog in rdlibrary(1) that
caused focus on the Cut entry to be lost after modifying cut
attributes.
Signed-off-by: Fred Gleason <fredg@paravelsystems.com>