Git commits in Moodle 3.2.6 by Ankit Agarwal

commit 1da8d303ef757d2a7bbe2ac5d7dbe6705515db1f
Author: Ankit Agarwal <ankit@moodle.com>
Date:   Tue, 19 Sep 2017 13:57:24 +0800
Tag:    v3.2.6

MDL-59780 mathjax: Make sure mathjax url doesn't become empty

commit fec32f3cd7276ce042193aaef4764e5ac17cbbde
Author: Ankit Agarwal <ankit@moodle.com>
Date:   Tue, 05 Sep 2017 14:37:49 +0800
Tag:    v3.2.6

MDL-35849 login: Add role alert to error messages