Author: Andrew Davis
MDL-26257 grade: fixed the grader report edit mode ajax and fixed a spot in the grader report that should be using get_students_per_page()
http://git.moodle.org/gw?p=moodle.git;a=commit;h=a740a0ad9862d1551bc7cc7f918ce8af3b5dd152
http://github.com/moodle/moodle/commit/a740a0ad9862d1551bc7cc7f918ce8af3b5dd152
+ 2.3 en [studentsperpagereduced,core_grades]