Author: Marina Glancy
MDL-38105 gradingform_rubric: option to lock 0 level for rubrics
this also allows using negative scores
http://git.moodle.org/gw?p=moodle.git;a=commit;h=dfc261be66e2079f6e313fc553424182e8d9d798
http://github.com/moodle/moodle/commit/dfc261be66e2079f6e313fc553424182e8d9d798
+ 3.2 en [err_scoreformat,gradingform_rubric]
+ 3.2 en [lockzeropoints,gradingform_rubric]
+ 3.2 en [lockzeropoints_help,gradingform_rubric]