xtaci/kcptun v20181224

xmas edition with minor updates

on GitHub

1. avoid unnecessary data copying in repeated segments
2. correct counting mistakes in RepeatSegs
3. pin updater goroutine to thread for better locality

xtaci/kcp-go@cf8866d
xtaci/smux@6cf098d
baf532e

$ go version
go version go1.11.4 darwin/amd64

SHA1SUM

8cd35620dacdee3d2920e80e28619da0f243c18e  kcptun-linux-amd64-20181224.tar.gz
407e85f869cce017e71a4c119278aef25369860c  kcptun-linux-386-20181224.tar.gz
d3f04434017503518c44389780c16422b73fdfa1  kcptun-darwin-amd64-20181224.tar.gz
2bf967b1740c5a89532f4300751f472c3ab1c185  kcptun-darwin-386-20181224.tar.gz
fc801c0c761f4aae02dd2e0ade8ad2a742dc51a9  kcptun-windows-amd64-20181224.tar.gz
4d8167552ef0739270db813225adf0a1e9664f43  kcptun-windows-386-20181224.tar.gz
63fab1b9bd7d16cbce274a13c89ef21b0661dcde  kcptun-freebsd-amd64-20181224.tar.gz
96a01a5f601409a99494a8d0eb2c62ae66f866ad  kcptun-freebsd-386-20181224.tar.gz
a226a85492c6634fdd36082189034de8401491e0  kcptun-linux-arm-20181224.tar.gz
0c8f588f4cbcff5d751aca3c325f3f86b2d492e0  kcptun-linux-mipsle-20181224.tar.gz
dcaddb5fb8464464e344768c723b278d3120f41c  kcptun-linux-mips-20181224.tar.gz