Fixed issue if mac_line wasn't found

  for the final V3.5 release

  The same workflow definition is present in the package
  intranet-workflow already.

  The file ~/packages/intranet-core/sql/postgresql/postgresql83-patch.sql
  includes a few casts to have ]po[ work correctly on PostgreSQL 8.3
  or higher.

  to deal with the case of unset sort_order field

  limited amount of columns