Bug 13225: Z39.50 result Card View doesn't work for UNIMARC

Bug 13225: Z39.50 result Card View doesn't work for UNIMARC

This patch fix UNIMARC Card View on Z39.50 result page. The valid XSL was
there: UNIMARC_compact.xml, but were not selected (a regression). This patch
use themelanguage to access XSL file, anticipating a intranet new theme in
future.

TO TEST: Before applying this patch, do a Z39.50 search, and try to display a
biblio record card view: meaningless. Retry after applying this patch.

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Tested in a UNIMARC installation, works as described.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>