Git commits in Moodle 2.7.4 by Gregory Faller

commit 402cc8811f8d493711e05907d61d125781b1b5ed
Author: Gregory Faller <greg.faller@flinders.edu.au>
Date:   Sat, 06 Dec 2014 05:57:30 +0800
Tag:    v2.7.4

MDL-46172 mod/assign: Stop suspended users getting assign group emails