Author: Colin Chambers
MDL-31726 Pre-fill question type combined feedback
http://git.moodle.org/gw?p=moodle.git;a=commit;h=086cced7490e18b3a821d0e973da1bb4d75183a2
http://github.com/moodle/moodle/commit/086cced7490e18b3a821d0e973da1bb4d75183a2
+ 2.5 en [correctfeedbackdefault,core_question]
+ 2.5 en [incorrectfeedbackdefault,core_question]
+ 2.5 en [partiallycorrectfeedbackdefault,core_question]