Author: Tim Hunt
MDL-29571 questions: improve class=accesshide screen-reader hints.
This changes the hint that comes before the question text. There are
unit tests to verify the new behaviour.
(amended to fix comments)
http://git.moodle.org/gw?p=moodle.git;a=commit;h=74969d8866e9a918a617fd0cd3ca2bafd299cdde
http://github.com/moodle/moodle/commit/74969d8866e9a918a617fd0cd3ca2bafd299cdde
+ 2.1 en [informationtext,qtype_description]