Author: Andrew Davis
gradebook MDL-22931 display more meaningful strings when configuring grade category
http://git.moodle.org/gw?p=moodle.git;a=commit;h=4afe9581abe69c97f0b2673373819d4351a47a2f
http://github.com/moodle/moodle/commit/4afe9581abe69c97f0b2673373819d4351a47a2f
+ 1.9 en [categorytotalname,core_grades]