CAT-111 Holding Maintenance Item Update Bug

CAT-111 Holding Maintenance Item Update Bug

Bugfix for CAT-69.  Add .length to comparison in copies_to_check
for loop in g.gather_copies.

Update copies in g.gather_copies.

Add FM_ACP_UNFLESHED_BATCH_RETRIEVE.authoritative API and call it
in g_stash_and_close();.

Signed-off-by: Kyle Huckins <khuckins@catalystdevworks.com>
 Changes to be committed:
	modified:   Open-ILS/src/perlmods/lib/OpenILS/Application/Search/Biblio.pm
	modified:   Open-ILS/xul/staff_client/chrome/content/main/constants.js
	modified:   Open-ILS/xul/staff_client/server/cat/update_items.js