revised the start/stop members: removed startstop_retrieve_update, added is_inclusive, fixed startstop_update to consider varargins, product and object start/stop/inclusive parameters; added some comments to help future revisions
revised the start/stop members: removed startstop_retrieve_update, added is_inclusive, fixed startstop_update to consider varargins, product and object start/stop/inclusive parameters; added some comments to help future revisions

jgte/orb,jgte/orb,jgte/orb,jgte/orb,jgte/orb