Author: Marina Glancy
MDL-49257 grades: strings adjustments
http://git.moodle.org/gw?p=moodle.git;a=commit;h=feda17c38ef69573e1831f3368fe56542ae6d035
http://github.com/moodle/moodle/commit/feda17c38ef69573e1831f3368fe56542ae6d035
+ 3.0 en [gradebookcalculationsfixbutton,core_grades]
+ 3.0 en [gradebookcalculationswarning,core_grades]