[keycloak-dev] almost done with my UserFederation work

General changes: * method signatures have changed a little on UserFederationProvider * UserFederationProviderModel exposes priority and display name. Display name is what will be shown in the federation provider list in the admin console. It defaults to the id of the provider. * UserFederationProviderFactory now has a getOptions() method. This lists attributes available for configuration on generic html page. (Same as auth provider did). LDAP changes: * LDAPFederationProvider has new config option called EditMode - READ_ONLY mode. Exception will be thrown if UserModel.setFirst, Last, Email, or Username is called. Also, if update of password is performed - WRITEABLE mode. Calls LDAP server to update those 4 attributes and password - UNSYNCED mode. Doesn't callback to LDAP server to update. Password can be overridden locally. * LDAPFederationProvider has new config option syncRegistrations true/false. If set to true, if the provider has priority, any addUser() call will add the user to LDAP too. UI work: * There is an LDAP specific screen * There is a generic user federation provider configuration screen * Searches now query user providers and should show up on user list page. * View user page will show a link back to the User Federation Provider if the user has been loaded via federation. Left to be done: * Behavior on when a provider is deleted. -- Bill Burke JBoss, a division of Red Hat http://bill.burkecentral.com