old_contents: 
  /**
   * Module dependencies.
   */
  
  var express = require('express');
  var http = require('http');
  var path = require('path');
  var handlebars = require('express3-handlebars')
  var mongoose = require('mongoose');
  
  var index = require('./routes/index');
  // Example route
  
  var index = require('./routes/index');
  var project = require('./routes/project');
  var chat = require('./routes/chat');
  var conversation = require('./routes/conversation');
  var setting = require("./routes/changeSettings");
  var sendmessage = require("./routes/sendMessage");
  var setsession = require("./routes/setSession");
  var deletefriendships = require('./routes/deletefriendships');
  var adduser = require("./routes/addUser");
  var addfriendships = require("./routes/addFriendships");
  
  // Connect to the Mongo database, whether locally or on Heroku
  // MAKE SURE TO CHANGE THE NAME FROM 'lab7' TO ... IN OTHER PROJECTS
  var local_database_name = 'spanglish';
  var local_database_uri  = 'mongodb://localhost/' + local_database_name
  var database_uri = process.env.MONGOLAB_URI || local_database_uri
  mongoose.connect(database_uri);
  
  var app = express();
  
  // all environments
  app.set('port', process.env.PORT || 3000);
  app.set('views', path.join(__dirname, 'views'));
  app.engine('handlebars', handlebars());
  app.set('view engine', 'handlebars');
  app.use(express.favicon());
  app.use(express.logger('dev'));
  app.use(express.json());
  app.use(express.urlencoded());
  app.use(express.methodOverride());
  app.use(express.cookieParser('Intro HCI secret key'));
  app.use(express.session());
  app.use(app.router);
  app.use(express.static(path.join(__dirname, 'public')));
  
  // development only
  if ('development' == app.get('env')) {
    app.use(express.errorHandler());
  }
  
  // Add routes here
  app.get('/', index.view);
  // Example route
  app.get('/chat', chat.view);
  app.get('/conversation/:id', conversation.viewConversation);
  app.get('/adduser', adduser.addUser);
  app.get('/addfriendships', addfriendships.addFriendships);
  app.post('/setsession', setsession.setSession);
  app.post("/chat/changeSettings", setting.changeSettings);
  app.post("/chat/sendMessage", sendmessage.send);
  
  
  http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
  });
  
new_contents: 
  /**
   * Module dependencies.
   */
  
  var express = require('express');
  var http = require('http');
  var path = require('path');
  var handlebars = require('express3-handlebars')
  var mongoose = require('mongoose');
  
  var index = require('./routes/index');
  // Example route
  
  var index = require('./routes/index');
  var project = require('./routes/project');
  var chat = require('./routes/chat');
  var conversation = require('./routes/conversation');
  var setting = require("./routes/changeSettings");
  var sendmessage = require("./routes/sendMessage");
  var setsession = require("./routes/setSession");
  var adduser = require("./routes/addUser");
  var addfriendships = require("./routes/addFriendships");
  
  // Connect to the Mongo database, whether locally or on Heroku
  // MAKE SURE TO CHANGE THE NAME FROM 'lab7' TO ... IN OTHER PROJECTS
  var local_database_name = 'spanglish';
  var local_database_uri  = 'mongodb://localhost/' + local_database_name
  var database_uri = process.env.MONGOLAB_URI || local_database_uri
  mongoose.connect(database_uri);
  
  var app = express();
  
  // all environments
  app.set('port', process.env.PORT || 3000);
  app.set('views', path.join(__dirname, 'views'));
  app.engine('handlebars', handlebars());
  app.set('view engine', 'handlebars');
  app.use(express.favicon());
  app.use(express.logger('dev'));
  app.use(express.json());
  app.use(express.urlencoded());
  app.use(express.methodOverride());
  app.use(express.cookieParser('Intro HCI secret key'));
  app.use(express.session());
  app.use(app.router);
  app.use(express.static(path.join(__dirname, 'public')));
  
  // development only
  if ('development' == app.get('env')) {
    app.use(express.errorHandler());
  }
  
  // Add routes here
  app.get('/', index.view);
  // Example route
  app.get('/chat', chat.view);
  app.get('/conversation/:id', conversation.viewConversation);
  app.get('/adduser', adduser.addUser);
  app.get('/addfriendships', addfriendships.addFriendships);
  app.post('/setsession', setsession.setSession);
  app.post("/chat/changeSettings", setting.changeSettings);
  app.post("/chat/sendMessage", sendmessage.send);
  
  
  http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
  });
  
subject: remove deletefriendships