merge kcp,add -ps -ds, fix ping bug,server support -replace

v0.80

fix p2p ping bug

v1.30

lite_v1.30

update kcp,merged from skwind3000/kcp

release 1.20 dtunnel_lite

add -kcp
add -src
fix reconnect bugs
remove -pipe 's max limit
xor effects handshake
-action server side default "", client side default socks5

fix session close bug without smart mode,fix client reconnect fail bug

lite_v1.11

fix socks5 connect fail bug

release 1.10 dtunnel_lite

lite_v1.10

update howtouse

1.0 version

lite_v1.0

release 1.0

v0.70

to -> too

fix c/s mode bug, reduce data size,and other small bugs

v0.60

fix client encrypt bug

reduce -encrypt exchange data size

lite_v0.90

-encrypt mode not compatible with old-version. update version to 0.90

lower memory cost, reduce transfer data size

lite_v0.8

fix memory leak bug for multi-pipes reconnect