Git commits in Moodle 2.3.x by Michael Hughes

commit ac3fe66f069af0ec058b90dd5d4a4f46e799cd1f
Author: Michael Hughes <michaelhughes@strath.ac.uk>
Date:   Fri, 01 Feb 2013 14:49:55 +0800
Tag:    v2.3.5

MDL-30144 Assignment 2.2: Download all as zip should only contain submission from active enroled users