Author: Jerome Mouneyrac
MDL-28126 webservices : should not able to create token if user is deleted,unconfirmed,suspended or guest.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=711c2728f526c048b5fb80ed282fbc5fba60f777
http://github.com/moodle/moodle/commit/711c2728f526c048b5fb80ed282fbc5fba60f777
+ 2.1 en [forbiddenwsuser,core_webservice]