send unreliable messages in p2p connections

source/qcommon/net.c

@@ -425,7 +425,8 @@ static int NET_UDP_GetPacket( const socket_t *socket, netadr_t *address, msg_t *
 static bool NET_SDR_SendPacket( const socket_t *socket, const void *data, size_t length, const netadr_t *address ) {
  struct send_message_req_s *req = (struct send_message_req_s*)malloc(sizeof(struct send_message_req_s) + length);
  req->cmd = RPC_P2P_SEND_MESSAGE;
- req->messageReliability = 8; // reliable tcp
+
+ req->messageReliability = 0|4|1; // 0 = unreliable, 4 = no nagle, 1 = no delay
  req->count = length;
  req->handle = socket->handle;
  memcpy(req->buffer, data, length);