docs: function () {
          var plugins = this.doc.findall('plugin');
          var result = plugins.map(function(plugin){
              return plugin.attrib.name;
          });
          var features = this.doc.findall('feature');
          features.forEach(function(element ){
              var idTag = element.find('./param[@name="id"]');
              if(idTag){
                  result.push(idTag.attrib.value);
              }
          });
          return result;
      }