Fix support for single node configuration used by Shadowsocks(R)-libev and V2Ray-core. Update Dockerfile.
Change default configuration file to pref.ini and try to look for pref.yml. Update Dockerfile.
Fix when subscription download timeout before complete, the parser will still try to parse downloaded content. Change default regex library to PCRE2. Change Quantumult X "url-test" equivalent to "available". Optimize codes. Update build scripts.
Add Dockerfile for image auto update.