Git commits in Moodle 2.9.8 by Juan Leyva

commit ce75268a2f14896677abd1002b269ba00adb0b44
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Mon, 11 Jul 2016 19:06:40 +0800
Tag:    v2.9.8

MDL-49026 webservice: Remove tokens on password change