Bug 16484 - Virtualshelves: Using no XSLTResultsDisplay breaks content display in...

Bug 16484 - Virtualshelves: Using no XSLTResultsDisplay breaks content display in intranet

To test:
1 - Create a list in staff client
2 - Set XSLTResultsDisplay to blank
3 - View list, titles don't display
4 - Apply patch
5 - View list, titles display
6 - Set XSLTResultsDisplay to default
7 - View list, titles display as before patch

Signed-off-by: Marc Veron <veron@veron.ch>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 6c0e8feb79513598c3837b1a8f6a35dba18a786f)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>