* improve broken pipe (EPIPE) error handling in socket
operations
* Updates sudoers config according to executable
* switch to a network namespace on Linux
* prevent UnicodeDecodeError parsing iptables rule with
comments
* remove temp build hack
* support ':' sign in password
* replace nix-env with nix-shell
* update installation instructions
OBS-URL: https://build.opensuse.org/package/show/security/sshuttle?expand=0&rev=47
