Git commits in Moodle 3.1.3 by Frédéric Massart

commit 9edd48f8940ed226b1fe5fba9002183e0b221d3d
Author: Frédéric Massart <fred@moodle.com>
Date:   Tue, 11 Oct 2016 20:03:48 +0800
Tag:    v3.1.3

MDL-56341 mustache: JS engines handles strings wrapped in quote

commit 51256b8ab5e6c5ca23397d1b0702d6214b550fb3
Author: Frédéric Massart <fred@fmcorz.net>
Date:   Thu, 06 Oct 2016 17:48:22 +0800
Tag:    v3.1.3

MDL-56282 enrol_meta: Fix error when editing existing instances

commit 490afb518299978fa0c488f6d7609c60dab4be60
Author: Frédéric Massart <fred@moodle.com>
Date:   Mon, 19 Sep 2016 21:57:37 +0800
Tag:    v3.1.3

MDL-55597 tool_templatelibrary: Re-inforce logic to skip theme templates