Git commits in Moodle 3.3.1 by Juan Leyva

commit 0fca28e1976990d0c71d2968ada09cfa6f1864b3
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Thu, 08 Jun 2017 18:14:45 +0800
Tag:    v3.3.1

MDL-59132 mod_feedback: Fix anonymous responses numbering

commit cc5235bb774f6644b5c2acf942420d54c826650b
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Thu, 08 Jun 2017 17:03:07 +0800
Tag:    v3.3.1

MDL-40015 core_course: Fix description of duplicate_course WS

commit 1099b7ce1d1fd8222ddddd68bc55718b9ad426b6
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Thu, 08 Jun 2017 16:39:44 +0800
Tag:    v3.3.1

MDL-59112 theme_clean: Always return expected moodle_url