message: Workaround for compatibility between different version of zmq on client and node side.
diff: @@ -340,7 +340,7 @@ impl PoolConnection {
  impl RemoteNode {
  fn connect(&self, ctx: &zmq::Context, key_pair: &zmq::CurveKeyPair) -> IndyResult<ZSocket> {
  let s = ctx.socket(zmq::SocketType::DEALER)?;
  - s.set_identity(&key_pair.public_key)?;
  + s.set_identity(base64::encode(&key_pair.public_key).as_bytes())?;
  s.set_curve_secretkey(&key_pair.secret_key)?;
  s.set_curve_publickey(&key_pair.public_key)?;
  s.set_curve_serverkey(zmq::z85_encode(self.public_key.as_slice())
  