Bug 15735: Audio Alerts editor broken by use of of single quotes in editor

Bug 15735: Audio Alerts editor broken by use of of single quotes in editor

Single quotes audio selector break ability to edit an alert

Test Plan:
1) Enable audio alerts
2) Add new a alert with a select containing single quotes such as: input[name*='test']
3) Note you cannot edit the alert
4) Apply this patch
5) Reload the page
6) You should now be able to edit the alert

Signed-off-by: Hector Castro <hector.hecaxmmx@gmail.com>
Bug 15734 applied on top. Works as advertised

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>
(cherry picked from commit f30091414755728317cf34421f7709a939745881)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>