 
 require('./').run serverModule,
   forceKillTimeout: forceKillTimeout
+  host:             host
   port:             port
   restartCooldown:  restartCooldown
   workers:          workers

  rocksteady server.js [options]

  Options:
    --port             Specify port to listen on.
    --workers          Number of workers to start.
    --restart-cooldown Seconds to wait before respawning workers that die.


while opt = args.shift()
  switch opt
    when '--host', '-h'
      host = args.shift()
    when '--port', '-p'
      port = parseInt args.shift(), 10
    when '--workers', '-n'
