Notification of string changes

Author: Tim Hunt
MDL-28365 Move question lang string to the right file
All the references to this sring were already referring to it in the new
place.

AMOS BEGIN
MOV [cannotread,mod_quiz],[cannotread,question]
AMOS END


http://git.moodle.org/gw?p=moodle.git;a=commit;h=a41c441c0524d9a9676dc6abea192106f410d143
http://github.com/moodle/moodle/commit/a41c441c0524d9a9676dc6abea192106f410d143

+ 2.2 en [cannotread,core_question]
- 2.2 en [cannotread,mod_quiz]