Git commits in Moodle 2.4.4 by Joseph Rézeau

commit eff38644cf5e60752615d4fcb679230a64565e38
Author: Joseph Rézeau <moodle@rezeau.org>
Date:   Fri, 03 May 2013 17:00:43 +0800
Tag:    v2.4.4

MDL-39488 Lesson Module: Fix for "Match question throws PHP error if one or more options have not been selected "