Author: Andrew Robert Nicols
MDL-31215 Add the ability to change activity titles using AJAX calls
http://git.moodle.org/gw?p=moodle.git;a=commit;h=6a14c4ffdd01d6b2069e8c27bb2b7df26dcdbd6a
http://github.com/moodle/moodle/commit/6a14c4ffdd01d6b2069e8c27bb2b7df26dcdbd6a
+ 2.3 en [edittitle,core]