Git commits in Moodle 2.9.0 by Botond Hegedus

commit f8045246050b7748399a5e79eb9b85991808fb93
Author: Botond Hegedus <botondhegedus.webdeveloper@gmail.com>
Date:   Sun, 15 Feb 2015 20:33:37 +0800
Tag:    v2.9.0-beta

MDL-49198 core_webservice: Fix error when using existing service name