MDL-42097 fix handling of passwords when creating new users
MDL-42097 auth: Webservice auth uses tokens only not passwords
MDL-42174 More behat tests for filepicker
filemanager corrections
MDL-42174 behat: deprecate upload file to filepicker step in favour of filemanager
MDL-42174 behat: change word filepicker to filemanager in step definitions