[ticket/11516] Upgrading the .live jquery function because it is deprecated.

I changed the .live function of jQuery for .on function because a user
reported that he had an error because of that, it showed that .live function
was deprecated, so I changed for .on that it's same but it work with new
jQuery versions.

PHPBB3-11516
Merge remote-tracking branch 'nickvergessen/ticket/encryptedmind/11516' into develop

* nickvergessen/ticket/encryptedmind/11516:
  [ticket/11516] Upgrading the .live jquery function because it is deprecated.