Bug 12253: Fix MARCUrls in basket

Bug 12253: Fix MARCUrls in basket

At the OPAC and the intranet, the urls don't be displayed anymore.
The variables used in the templates are not the good ones (MARCurlS vs
MARCURLS).

Test plan:
1/ On the intranet side, add some urls to some records
2/ Add these records to the basket
3/ Add records without urls defined
4/ Go on the basket view, click "more details"
5/ You should see the urls displayed
6/ Repeat steps 4-5 at the OPAC

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
NOTE: 856$u displays now in intranet and OPAC. :)

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
(cherry picked from commit 6a923f9cc666d3186d70299d0e18530c2bc26e97)
Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>