Changelog
9dd38e9 Merge branch 'release/0.5.0'
440bdc7 bump: 0.5.0
13e23ca JsonFlag → JSONFlag
0ab0df3 feat: add -i option for --ice-servers
a1f1ee4 refactor: include DNS server setting to createHttpClient()
5ff0794 support --insecure and --dns-server options for "duplex" subcommand
4028969 not use array when the number of "urls" elements is 1
a3d6577 docs: options
53e96e9 Merge tag 'v0.4.0' into develop