Git commits in Moodle 3.3.x by Lukas Hämmerle

commit 056a5138a4a37bf614eb780efc88a0d61f04a9a5
Author: Lukas Hämmerle <lukas.haemmerle@switch.ch>
Date:   Fri, 11 Nov 2016 17:56:13 +0800
Tag:    v3.3.0-beta

MDL-41729 auth_shibboleth: Allow password change for shibboleth users