Git commits in Moodle 3.1.2 by An Pham Van

commit 6358e71651bb755716d0b2d3cb80964dd9de2774
Author: An Pham Van <An.PhamVan@harveynash.vn>
Date:   Mon, 25 Jul 2016 15:16:27 +0800
Tag:    v3.1.2

MDL-54838 workshop: Differentiate labels for each comment field.