History for LoginMethods
??changed:- PlugIns used by LoginManager to control authentication and authorization. A LoginManager asks its LoginMethods one at a time to supply a user object from data available in a !ZPublisher REQUEST object. Each login method has a chance to alter or veto the information provided by previous login methods, and each is supplied with a reference to the LoginManager which they can use to retrieve user records from the manager's UserSources.