Changelog
fb0661e v0.8.0
74ebdaf improve code
02c221a single mux
e08582a mux server receive data
3d8b80a rewrite mux (still can not use)
b6235c3 mux client and server (can not use)
c74b6b1 smux chan
8e9d008 use github.com/xtaci/smux
3632c35 simple mux
