v1.9.2

• Remove TLS
• Disable the default tcp keepalive mechanism
• Feature socks udp associate
• Modify keepAliveLoop to async for enabling timeout on no-response ping
• Reuse buffer
• bugfix : fix the udpConns map does not release new conns when its length is over 100
• Improve udp tunnel stability
• Fix handleUDP() exit on connection refused
• Added the ability to use a unix domain socket for listen/connect
• Update README.md