Update Akeeba Strapper jQuery to 1.9.1

jQuery 1.9.1 Upgrade guide:
http://jquery.com/upgrade-guide/1.9/#toggle-function-function-removed

jQuery 1.9.1 Release notes:
http://blog.jquery.com/2013/02/04/jquery-1-9-1-released/

Check also the jQuery migrate plugin, looks promising!
http://blog.jquery.com/2013/01/31/jquery-migrate-1-1-0-released/