Mark as deprecated in SimpleSAML_Session: DATA_TIMEOUT_LOGOUT, $authority,...

Mark as deprecated in SimpleSAML_Session: DATA_TIMEOUT_LOGOUT, $authority, getAuthority(), getAuthnRequest(), setAuthnRequest(), setIdP(), getIdP(), setSessionIndex(), getSessionIndex(), setNameID(), getNameID(), setSessionDuration(), remainingTime(), isAuthenticated(), getAuthnInstant(), getAttributes(), getAttribute(), setAttributes(), getSize(), expiraDataLogout(), setLogoutState(), getLogoutState().