Make services async about watchmen HOT 6 CLOSED

WatchMen.prototype.start = function (cb){
 var self = this;
 self.daemon_status = 1;

 function launch (service){
   self.ping ({service:service}, function (err, state){
    if (err){ console.error (err); }

    if (self.daemon_status){
     setTimeout(launch, parseInt(state.next_attempt_secs, 10) * 1000, service);
    }
   });
 }

 this.services(function (err, services) {
   if(err) {
     console.log("Exiting: " + err.message);
     process.exit();
   }
   services.forEach(function(service){
     if (service.enabled !== false){
      launch(service);
     }
    });

    console.log('watchmen monitor started.');
    cb();
 });
};