Patch from Doug Kyle to address transit-related deficiency in the reshelving-complete...

Patch from Doug Kyle to address transit-related deficiency in the reshelving-complete query.

Previously, items that transited for reshelving at their circulating library would be flipped from Reshelving to Available almost immediately in most cases.  Doug taught the "find copies to flip to Available" query about transit receive times, allowing them to stay in Reshelving status for as long as copies returned directly to the circulating library.

git-svn-id: svn://svn.open-ils.org/ILS/trunk@15416 dcc99617-32d9-48b4-a31d-7c20da2025e4