Bug 6916 - item's acq date now takes you to its invoice

Bug 6916 - item's acq date now takes you to its invoice

When viewing an item's details, selecting the accession date for it now
takes you to the invoice for that item.

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
This works as advertised.
1) Order and receive an item in acquisition
2) Search for it in staff and go to the 'items' tab
3) Click on the 'receive date' link

Fixed conflict in moredetail.pl.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
QA. This patch does only work when AcqCreateItem==placing an order. This is caused by an existing bug. See Bugzilla for more details.

Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>