Git commits in Moodle 3.1.12 by Eloy Lafuente (stronk7)

commit f6f7a788acf901024b8924ab359f87ea8e098c1f
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Sun, 13 May 2018 00:55:31 +0800
Tag:    v3.1.12

MDL-62416 question_calculated: fix const to work under php54


commit b6c0d8fc2a3f30bc37a3f1dbcd115df9e2a263f9
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Sat, 12 May 2018 03:16:41 +0800
Tag:    v3.1.12

MDL-62275 qtype_calculatedmulti: Fix typo