Author: Eric Merrill
MDL-63456 question: Improve Aiken error handling and multichoice errors
http://git.moodle.org/gw?p=moodle.git;a=commit;h=2d5d5d79027ad430c8cc8ad7b30fd9059e4125f9
http://github.com/moodle/moodle/commit/2d5d5d79027ad430c8cc8ad7b30fd9059e4125f9
+ 3.5 en [questionmissinganswers,qformat_aiken]
+ 3.5 en [questionnotcomplete,qformat_aiken]
+ 3.5 en [questionnotstarted,qformat_aiken]