Bug 19108 - Stored XSS in oai_sets.pl

Bug 19108 - Stored XSS in oai_sets.pl

To Test
1. Hit the page /cgi-bin/koha/admin/oai_sets.pl
2. Click on New set
3. Add a text in the field setSpec, setName that contains js
4. Save the page.
5. Notice js is execute
6. Apply patch and reload, the js is escaped

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
(cherry picked from commit 10d3a8c212f8a45e40cd2644f94d555566a10018)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>