Bug 24488: Show correct first patron details on Holds to pull

Bug 24488: Show correct first patron details on Holds to pull

This patch rewrites the complex search query to reduce the risk of
reordering the results multiple times.

This patch includes a change to schema files so may need to upgrade
schema and/or restart memcached

To test:
1) Reproduce problem following test plan in Description
2) Apply patch and refresh page
3) Notice the correct patron is now shown
4) Play with date selection, confirm correct results are still shown
5) Test cancelling holds
6) Test filtering table results
7) Test with biblios with multiple items
8) Test with making items unavailable (i.e. not for loan, checked out)

Sponsored by: IHC New Zealand

Signed-off-by: Michal Denar <black23@gmail.com>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Michal Denar <black23@gmail.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>