Git commits in Moodle 2.9.6 by Jan C. Dageförde

commit dbade23e87ec8df21f635e55cacb37943e5e1b06
Author: Jan C. Dageförde <jan.dagefoerde@ercis.uni-muenster.de>
Date:   Wed, 09 Mar 2016 23:45:42 +0800
Tag:    v2.9.6

MDL-53407 themes: Add CSS class `editing` only if appropriate