Trim leading zeros since month_data is keyed by month number without leading zero, and I have seen at least once getting it a month value with leading zero from somewhere.
pg_relcheck was replaced by pg_constraint in postgres 7.3 andlater. Code allows for both, but was only using the right one for 7.3exactly, not 7.3 and above.
Accept -package_id for getting package parameters, to support adding photos from pages not inside the photo-album package, e.g. from a migration script
