old_contents: module.exports = {
  	http: {
  		siteUrl: process.env.SITE_URL,
  		port: process.env.PORT
  	},
  	mongoUrl: process.env.MONGODB_URI,
  	vk: {
  		appId: process.env.HVZ_VK_APP_ID,
  		appSecret: process.env.HVZ_VK_SECRET
  	},
      sentryURL: process.env.HVZ_SENTRY_URL,
  	cookieSecret: process.env.HVZ_COOKIE_SECRET,
  	sessionSecret: process.env.HVZ_SESSION_SECRET,
  	startDate: "2014-10-2 17-00 +03:00",
  	endDate: "2014-10-6 19-00 +03:00"
  };
  
new_contents: module.exports = {
  	http: {
  		siteUrl: process.env.SITE_URL,
  		port: process.env.PORT
  	},
  	mongoUrl: process.env.MONGODB_URI,
  	vk: {
  		appId: process.env.HVZ_VK_APP_ID,
  		appSecret: process.env.HVZ_VK_SECRET
  	},
      sentryURL: process.env.HVZ_SENTRY_URL,
  	cookieSecret: process.env.HVZ_COOKIE_SECRET,
  	sessionSecret: process.env.HVZ_SESSION_SECRET,
  	startDate: "2017-05-18 17-00 +03:00",
  	endDate: "2017-05-21 19-00 +03:00"
  };
  
subject: Update production.app.config.js