Git commits in Moodle 2.9.3 by David Mudrák

commit 2b459a6e97ee4e655f684e55a8451ec18ecd762c
Author: David Mudrák <david@moodle.com>
Date:   Tue, 03 Nov 2015 05:42:27 +0800
Tag:    v2.9.3

MDL-52018 lang: Fix behat test to use the new string


commit a0c74d2ad9eac29c98ae1cb62858ca20d833874e
Author: David Mudrák <david@moodle.com>
Date:   Wed, 02 Sep 2015 04:57:59 +0800
Tag:    v2.9.3

MDL-48165 workshop: Validate the rubric editing form


commit 95778c3e512bf44212dbb21233f70da93d427e12
Author: David Mudrák <david@moodle.com>
Date:   Wed, 02 Sep 2015 04:57:04 +0800
Tag:    v2.9.3

MDL-48165 workshop: Add support for assessment forms validation