Bug 17029: Fix XSS in catalogue/*detail.pl

Bug 17029: Fix XSS in catalogue/*detail.pl

Hit
  /cgi-bin/koha/catalogue/detail.pl?biblionumber=1<script type="text/javascript">alert("XSS")</script>
  /cgi-bin/koha/catalogue/ISBDdetail.pl?biblionumber=1<script type="text/javascript">alert("XSS")</script>
  /cgi-bin/koha/catalogue/MARCdetail.pl?biblionumber=1<script type="text/javascript">alert("XSS")</script>
  /cgi-bin/koha/catalogue/moredetail.pl?biblionumber=1<script type="text/javascript">alert("XSS")</script>
  /cgi-bin/koha/catalogue/labeledMARCdetail.pl?biblionumber=1<script type="text/javascript">alert("XSS")</script>

=> Without this patch you will see the alert
=> With this patch, no more alert

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>