v4.3.0

Features

• add support set http-proxy-redir-url in nginx proxy. (Jianhui Zhao)
• add support set log level (Jianhui Zhao)
• default listen tcp4 for http proxy (Jianhui Zhao)
• bump version 4.3.0 (Jianhui Zhao)

Documentation

• fix proxy via nginx (Jianhui Zhao)

Chores

• add more log (Jianhui Zhao)
• use golang.org/x/term (Jianhui Zhao)