Git commits in Moodle 2.3.6 by Rossiani Wijaya

commit b845942af53fb7dd27f3d083b7823f989726c40c
Author: Rossiani Wijaya <rwijaya@moodle.com>
Date:   Tue, 12 Mar 2013 14:16:15 +0800
Tag:    v2.3.6

MDL-34011 Lesson module - short answer question:  fixed student attempt statistics

commit 819cdd80413f78bdec59969abc5f14ba614492f5
Author: Rossiani Wijaya <rwijaya@moodle.com>
Date:   Thu, 28 Feb 2013 16:01:40 +0800
Tag:    v2.3.6

MDL-34774 Lesson module: fixed report stats for 'high score' and 'low score' values where there is only one attempt with 0 score