Author: David Mudrak
MDL-27789 The new question plugins reported as standard ones
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d1c77ac372138d83e79c047b39311d4f96428b05
http://github.com/moodle/moodle/commit/d1c77ac372138d83e79c047b39311d4f96428b05
+ 2.1 en [type_qbehaviour,core_plugin]
+ 2.1 en [type_qbehaviour_plural,core_plugin]
+ 2.1 en [pluginname,qbehaviour_missing]