old_contents: var express = require('express');
  var childProcess = require('child_process');
  var middleware = require('./config/initializers/middleware.js');
  var router = require('./config/routes.js');
  var host = process.env.HOST;
  var port = process.env.PORT || 4000;
  var app = express();
  
  middleware.configure(app);
  router.route(app);
  
  host ? app.listen(port, host) : app.listen(port);
  childProcess.exec("node listener.js");
  childProcess.exec("node ripple-simple/app.js"); // http://0.0.0.0:5990
  
  console.log('Serving HTTP on', (host || 'localhost')+":"+port);
  
  
new_contents: var express = require('express');
  var childProcess = require('child_process');
  var middleware = require('./config/initializers/middleware.js');
  var router = require('./config/routes.js');
  var host = process.env.HOST;
  var port = process.env.PORT || 4000;
  var app = express();
  
  middleware.configure(app);
  router.route(app);
  
  host ? app.listen(port, host) : app.listen(port);
  childProcess.exec("node ripple-simple/app.js"); // http://0.0.0.0:5990
  childProcess.exec("node workers/outgoing_ripple_payments.js");
  childProcess.exec("node listener.js");
  
  console.log('Serving HTTP on', (host || 'localhost')+":"+port);
  
  
subject: Add outgoing payment worker as child process.