old_contents: /*jshint node:true, strict:false */
  'use strict';
  
  var express = require('express');
  var compress = require('compression');
  
  var app = express();
  
  app.set('port', (process.env.PORT || 5000));
  app.use(compress());
  app.use(express.static(__dirname + '/public'));
  app.use('/data/blocks.json', express.static(__dirname + '/data/blocks.json'));
  
  app.listen(app.get('port'), function() {
    console.log("✔ Express server listening on port %d in %s mode", app.get('port'), app.settings.env);
  })
  
new_contents: /*jshint node:true, strict:false */
  'use strict';
  
  var express = require('express');
  var compression = require('compression');
  
  var app = express();
  
  app.set('port', (process.env.PORT || 5000));
  app.use(compression());
  app.use(express.static(__dirname + '/public'));
  app.use('/data/blocks.json', express.static(__dirname + '/data/blocks.json'));
  
  app.listen(app.get('port'), function() {
    console.log("✔ Express server listening on port %d in %s mode", app.get('port'), app.settings.env);
  })
  
subject: rename compression middleware