improve linking out of acquisitions upload page

improve linking out of acquisitions upload page

- cat/catalog/vandelay route no longer drops
  query parameters, permitting direct linking to import
  queues (e.g., /eg/staff/cat/catalog/vandelay?qtype=bib&qid=367)
- acq/legacy/:noun/:verb/:record now a valid acq route
- purchase order MARC loading now generates usable links
  back to PO, selection list, and/or import queue

Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>
Signed-off-by: Kathy Lussier <klussier@masslnc.org>