code: function startSauceConnect (done) {
  	console.log([moment().format('HH:mm:ss:SSS')] + ' kne: Starting Sauce Connect');
  
  	var default_options = {
  		username: process.env.SAUCE_USERNAME,
  		accessKey: process.env.SAUCE_ACCESS_KEY,
  		connectRetries: 5,
  		connectRetryTimeout: 60000,
  		logger: sauceConnectLog,
  		readyFileId: process.env.TRAVIS_JOB_NUMBER,
  	};
  	var custom_options = process.env.TRAVIS_JOB_NUMBER
  		? {
  			tunnelIdentifier: process.env.TRAVIS_JOB_NUMBER,
  		} : {
  		};
  	var options = _.extend({}, default_options, custom_options);
  
  	sauceConnectLauncher(options, function (err, sauceConnectProcess) {
  		if (err) {
  			console.error([moment().format('HH:mm:ss:SSS')] + ' kne: There was an error starting Sauce Connect');
  			done(err);
  		} else {
  			console.log([moment().format('HH:mm:ss:SSS')] + ' kne: Sauce Connect Ready');
  			sauceConnection = sauceConnectProcess;
  			sauceConnectionRunning = true;
  			setTimeout(done, 5000);
  		}
  	});
  }
docs: Function that starts the sauce connect servers if SAUCE_ACCESS_KEY is set.