message: don't try to fingerprint images
  it doesn't work right, the way we're accessing them
diff: @@ -12,7 +12,11 @@ module.exports = function(defaults) {
  vendorFiles: { 'jquery.js': null, 'app-shims.js': null },
  // our dummy app always uses faker, even in production
  - 'ember-faker': { enabled: true }
  + 'ember-faker': { enabled: true },
  +
  + fingerprint: {
  + extensions: ['js', 'css', 'map']
  + }
  // Add options here
  });
  