Git commits in Moodle 2.7.4 by Pierre Pichet

commit 6aa10e418279190d69b2efc3c73a7276719b6c57
Author: Pierre Pichet <pichet.pierre@uqam.ca>
Date:   Fri, 07 Nov 2014 22:54:43 +0800
Tag:    v2.7.4

MDL-48042 Questions: Reset Calculated qtype comments on datasets