xtaci/kcptun v20190809

-dscp works with -tcp option now

on GitHub

1. -dscp option works with -tcp option now
   #704

$ go version
go version go1.12.7 darwin/amd64

$date
2019年 8月 9日 星期五 11时44分20秒 CST

$ shasum *.tar.gz
f455aec9ee4aa6025d79f752f5f19e3e11b08ba0  kcptun-linux-amd64-20190809.tar.gz
a36934fd9a9315a52208f2e909e0de8a1fde88a8  kcptun-darwin-amd64-20190809.tar.gz
047d320e58c56d0af91bb40c5a0a8db8c37a973b  kcptun-windows-amd64-20190809.tar.gz
20a2c8c5339df994fe38b1fcbfc93bd986089d1e  kcptun-freebsd-amd64-20190809.tar.gz
0ab8f53ad142f5836e772f996d66030356fa9928  kcptun-linux-386-20190809.tar.gz
d5855764854fef997c0fa0911ec38d02b0a7d048  kcptun-windows-386-20190809.tar.gz
904c377065a0bc0af682d6ab7f7adfda801a0716  kcptun-linux-arm5-20190809.tar.gz
910806ec0ed0bf025540021e48bb945a23a2ac60  kcptun-linux-arm6-20190809.tar.gz
94a1355552269b2ebae4a46ca5b559a6fc13516f  kcptun-linux-arm7-20190809.tar.gz
9b7b8f50f16310e4ead3a85c9fa3fee63a902dc2  kcptun-linux-arm64-20190809.tar.gz
9caa93152bd052c7cf667cce610d78e198a0b7be  kcptun-linux-mipsle-20190809.tar.gz
9ef274b53842c45935d63461f4db3c92b41dae5e  kcptun-linux-mips-20190809.tar.gz