Author: Jerome Mouneyrac
MDL-28629 more checks during web service authentication
http://git.moodle.org/gw?p=moodle.git;a=commit;h=794e40ec3660ddde93b6d40857efe2d82090d7eb
http://github.com/moodle/moodle/commit/794e40ec3660ddde93b6d40857efe2d82090d7eb
+ 2.0 en [wsaccessuserdeleted,core_webservice]
+ 2.0 en [wsaccessuserexpired,core_webservice]
+ 2.0 en [wsaccessusernologin,core_webservice]
+ 2.0 en [wsaccessusersuspended,core_webservice]
+ 2.0 en [wsaccessuserunconfirmed,core_webservice]