Author: Mathew May
MDL-76134 gradebook: Hook into tertiary dropdown item
http://git.moodle.org/gw?p=moodle.git;a=commit;h=712f219c7cccf4a3a96217da119ef23331b95edf
http://github.com/moodle/moodle/commit/712f219c7cccf4a3a96217da119ef23331b95edf
+ 4.2 en [filterbothactive,core_grades]
+ 4.2 en [filterbyname,core_grades]
+ 4.2 en [filterfirstactive,core_grades]
+ 4.2 en [filterlastactive,core_grades]
+ 4.2 en [apply,core]