CLIENT LIST
CLIENT SETNAME name
CLIENT GETNAME
CLIENT KILL [ip:port] [ID client-id] [ADDR ip:port]
The CLIENT LIST command returns
One client connection per line (separated by LF)
Each line is composed of a succession of property=value
fields separated by a space character.
id: an unique 64-bit client ID
addr: address/port of the clien
age: total duration of the connection in seconds
idle: idle time of the connection in seconds
name: the name of the client
Suggested by @UriHendler, closes#139
49e1fcce7a