Moved handshake to NOOP to avoid NOT_PERMITTED error on identities without GETLOG permission

    def _handshake(self):

        # Connection id handshake

        # any message works, a NOOP should be slighly faster

        # might as well get something back

        h,v = operations.GetLog.build([common.LogTypes.CONFIGURATION])

        h,v = operations.Noop.build()

        self.update_header(h)

        self.network_send(h,v)

        h,v = self.network_recv()

        operations._check_status(h)

        log = operations.GetLog.parse(h,v)

        self.config = log.configuration

    def has_data_available(self):

        tmp = self._socket.recv(1, socket.MSG_PEEK)