Make _config/server.jst construct the Server object and pass options into it, rather...

Make _config/server.jst construct the Server object and pass options into it, rather than just returning the options to be used, make cli.js and _config/server.jst pass the previous server into the Server constructor to be able to determine what ports are already being listened to, make refresh_config() just a periodic call from outside that tries to align Server.listen with Server.options.listen