Author: Paul Holden
MDL-80984 gradepenalty: define type language strings, add to standard.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=08a02cce550c617f56abfa95279f2389e21c1ae2
http://github.com/moodle/moodle/commit/08a02cce550c617f56abfa95279f2389e21c1ae2
+ 5.0 en [type_gradepenalty,core_plugin]
+ 5.0 en [type_gradepenalty_plural,core_plugin]