Author: Andrew Davis
MDL-48942 mod_survey: synced security checks in view.php and graph.php
http://git.moodle.org/gw?p=moodle.git;a=commit;h=32f0ad84c65be1fd59dd2d295fbd45939854a467
http://github.com/moodle/moodle/commit/32f0ad84c65be1fd59dd2d295fbd45939854a467
+ 2.7 en [surveycompletednograph,mod_survey]