Fix Room hosting - Use the correct RPC handler for when the 'host-room' command is used. - Avoid making clients hang up by returning OK when the rpc endpoint call is unknown.
Remove 'connect' argument Only support useful subcommands to avoid confusing users. Keep the Connect code there for future use.
Make slightly less verbose Remove not needed printing to stdout and replace 'print's with putStrLn to avoid surrounding output with quotation marks.