Git commits in Moodle 2.6.0 by Michael Aherne

commit 85e7a92e5448b1e72698c25f6347e133831e0f77
Author: Michael Aherne <michael.aherne@strath.ac.uk>
Date:   Thu, 24 Oct 2013 18:24:26 +0800
Tag:    v2.6.0-rc1

MDL-42517 testing Changed events test to use assertDebuggingCalled()

commit f817c41cbf9dfeafc65a3c6a4e7148625737180d
Author: Michael Aherne <michael.aherne@strath.ac.uk>
Date:   Thu, 19 Sep 2013 22:50:44 +0800
Tag:    v2.6.0-beta

MDL-41900 events Log handler failures

commit 91dbb244428424e21ba455c5fea5785ff249f1df
Author: Michael Aherne <michael.aherne@strath.ac.uk>
Date:   Mon, 02 Sep 2013 17:22:40 +0800
Tag:    v2.6.0-beta

MDL-41254 backup Raise time and memory limit in precheck.

commit 4dd791328e20daf51c6ea0e5e9f8a5ac438e0402
Author: Michael Aherne <michael.aherne@strath.ac.uk>
Date:   Fri, 21 Jun 2013 18:40:36 +0800
Tag:    v2.6.0-beta

MDL-40275 core Improve documentation for block_base::has_config()