old_contents: module.exports = function() {
  
    var server = {
      "port": process.env.PORT || 8080
    };
  
    var mail = {
      "port": process.env.MAIL_PORT || 1025
    };
  
    var db = {
      "uri": process.env.MONGODB_DEV || "mongodb://" + process.env.MONGODB_PORT_27017_TCP_ADDR + ":" + process.env.MONGODB_PORT_27017_TCP_PORT + "/disguise"
    };
  
    var jwt = {
      "secret": "IHopeNobodyCanGuessThisSecret"
    }
  
    return {
      "server": server,
      "db": db,
      "mail": mail,
      "jwt": jwt
    };
  }
new_contents: module.exports = function() {
  
    var server = {
      "port": process.env.PORT || 8080
    };
  
    var mail = {
      "port": process.env.MAIL_PORT || 1025
    };
  
    var db = {
      "uri": process.env.MONGODB || "mongodb://localhost/disguise"
    };
  
    var jwt = {
      "secret": "IHopeNobodyCanGuessThisSecret"
    }
  
    return {
      "server": server,
      "db": db,
      "mail": mail,
      "jwt": jwt
    };
  }
subject: update config.js