Git commits in Moodle 2.9.6 by Pau Ferrer Ocaña

commit 88546dad6b8af60839bcf33e1ed4a7e7cc5ddd83
Author: Pau Ferrer Ocaña <crazyserver@gmail.com>
Date:   Tue, 12 Apr 2016 21:00:59 +0800
Tag:    v2.9.6

MDL-52263 libraries: Add test cases to external_format_text options


commit f32bd23f8f144faa81f05d497497b108194ae7ed
Author: Pau Ferrer Ocaña <crazyserver@gmail.com>
Date:   Tue, 12 Apr 2016 20:56:19 +0800
Tag:    v2.9.6

MDL-52263 libraries: Add options to external_format_text


commit de14b56501efd7f35d91be2207d03873b935de5d
Author: Pau Ferrer Ocaña <crazyserver@gmail.com>
Date:   Mon, 14 Mar 2016 19:59:14 +0800
Tag:    v2.9.6

MDL-53461 assign: Fix intro images to be shown in the mobile app