Git commits in Moodle 2.3.7 by Joseph Rézeau

commit 152a040acdf71add53ad37a5af38e6eeda4ab68b
Author: Joseph Rézeau <moodle@rezeau.org>
Date:   Fri, 03 May 2013 17:00:43 +0800
Tag:    v2.3.7

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