code: function createStack(app, plugins) {
    if (app.enabled('minimal config')) {
      return es.pipe.apply(es, []);
    }
    function enabled(acc, plugin, name) {
      if (plugin == null) {
        acc.push(through.obj());
      }
      if (app.enabled(name + ' plugin')) {
        acc.push(plugin);
      }
      return acc;
    }
    var arr = _.reduce(plugins, enabled, []);
    return es.pipe.apply(es, arr);
  }
docs: Create the default plugin stack based on user settings.
  
  Disable a plugin by passing the name of the plugin + ` plugin`
  to `app.disable()`,
  
  **Example:**
  
  ```js
  app.disable('src:foo plugin');
  app.disable('src:bar plugin');
  ```