AdminUI: In case of first login attempt LoginWindow will activate a tab for a first auth method from server config security.authenticationMethods array
since form definitian now evaluated only once (HMR) both EntityGridPanel & ubdetailgrid now accept customActionas as a Ext.Action config (not a class instance)
ability to persist session for UBConnection ( allowSessionPersistent connect config parameter) - for
usage inside non-SPA browser clients. Cleared after connection.logout() or in case server log out user.