Git commits in Moodle 2.8.4 by Jan Eberhardt

commit ec943fe1070ab5cf0b03cd67fd8cf83ec25d2400
Author: Jan Eberhardt <eberhardt@math.tu-berlin.de>
Date:   Fri, 30 Jan 2015 00:45:34 +0800
Tag:    v2.8.4

MDL-31578 auth_shibboleth: Custom fields added to shibboleth settings