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=72306a6ff4655c894d50d8ffb1e52d9c626d4713
http://github.com/moodle/moodle/commit/72306a6ff4655c894d50d8ffb1e52d9c626d4713
+ 2.2 en [forbiddenwsuser,core_webservice]