Bug 22631: Make links on barcode on hold summary page consistent (bug 21070)

Bug 22631: Make links on barcode on hold summary page consistent (bug 21070)

Bug 21070 changed the link on the holds summary so the barcode
would link to the item on moredetail for an item level hold.

If a hold is already waiting, the link still goes to the detail
page of the record. This patch changes it so the barcode always
links to the item.

To test:
- Place some item level holds on a record
- Verify the barcodes on the hold summary page link to
  moredetail.pl
- Return one of the items so that the hold is waiting
- Verify the barcode links to the record detail page now
- Apply patch
- Verify barcodes for pending and waiting holds now both
  link to moredetail.pl

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Bin Wen <bin.wen@inlibro.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>