Author: Jayesh Anandani
MDL-39155 Quiz: Provide 3 image-size options on the settings page
http://git.moodle.org/gw?p=moodle.git;a=commit;h=1ecd3c304d82c5f4263ddc3963b4a60467ddda2c
http://github.com/moodle/moodle/commit/1ecd3c304d82c5f4263ddc3963b4a60467ddda2c
+ 2.6 en [showlargeimage,mod_quiz]
+ 2.6 en [shownoimage,mod_quiz]
+ 2.6 en [showsmallimage,mod_quiz]