zk1931/jzab — pull request #177 by m1ch1 (2014-11-02 00:43:55+00:00)
Title: implement a transport with 2 independent sockets for sending and receiving

implementing a tie-breaking logic is error-prone due to netty's asynchronous nature. i think the code would be much simpler if we use two sockets for each peer, one for sending and the other for receiving.