old_contents: module.exports = {
  	name: 'ui-selectize',
  	description: 'selectize select/tag form-control wrapped in Ember-CLI love',
  	included: function(app) {
  		this._super.included(app);
      const skin = app.selectizeStyle || 'bootstrap3';
  		app.import(app.bowerDirectory + '/selectize/dist/js/standalone/selectize.js');
  		app.import(app.bowerDirectory + '/selectize/dist/css/selectize.css');
  		app.import(`vendor/ui-selectize/skins/${skin}.css`);
      app.import(`vendor/ui-selectize/enh-skins/flat.css`);
      app.import(`vendor/ui-selectize/enh-skins/minimal.css`);
  		app.import('vendor/ui-selectize/ui-selectize.css');
  		app.import('vendor/ui-selectize/fast_click.js');
  	}
  };
  
new_contents: module.exports = {
  	name: 'ui-selectize',
  	description: 'selectize select/tag form-control wrapped in Ember-CLI love',
  	included: function(app) {
  		this._super.included(app);
      const skin = app.selectizeStyle || 'bootstrap3';
  		app.import(app.bowerDirectory + '/selectize/dist/js/standalone/selectize.js');
  		app.import(app.bowerDirectory + '/selectize/dist/css/selectize.css');
  		app.import('vendor/ui-selectize/skins/${skin}.css');
      app.import('vendor/ui-selectize/enh-skins/flat.css');
      app.import('vendor/ui-selectize/enh-skins/minimal.css');
  		app.import('vendor/ui-selectize/ui-selectize.css');
  		app.import('vendor/ui-selectize/fast_click.js');
  	}
  };
  
subject: Update index.js to use single quotes