Git commits in Moodle 2.4.8 by David Mudrák

commit 22bf788f6b7d51bcdfba0ec317e5e5bb112041e1
Author: David Mudrák <david@moodle.com>
Date:   Tue, 27 Aug 2013 17:40:18 +0800
Tag:    v2.4.8

MDL-40191 MDLSITE-2455 Do not throw coding exception when the activity is not found