Author: Andrew Nicols
MDL-66722 core_grades: Add simple direct grading to gradingpanel
Part of MDL-66074
http://git.moodle.org/gw?p=moodle.git;a=commit;h=9adedccd2b95609622bce641d8728d3d2e465ee7
http://github.com/moodle/moodle/commit/9adedccd2b95609622bce641d8728d3d2e465ee7
+ 3.8 en [grade_help,core_grades]