Git commits in Moodle 2.9.3 by Michael Aherne

commit 2c3fec1406bc68a90b9da4472adb81842fe6db05
Author: Michael Aherne <michael.aherne@strath.ac.uk>
Date:   Thu, 08 Oct 2015 21:39:27 +0800
Tag:    v2.9.3

MDL-51707 cron: Prevent finished tasks being returned