docs: public static List<CmsEditableDataJSO> getAllEditableDataForPage() {
  
          List<Element> elems = CmsDomUtil.getElementsByClass(CmsGwtConstants.CLASS_EDITABLE, Tag.div);
          List<CmsEditableDataJSO> result = Lists.newArrayList();
          for (Element elem : elems) {
              String jsonData = elem.getAttribute(CmsGwtConstants.ATTR_DATA_EDITABLE);
              CmsEditableDataJSO data = CmsEditableDataJSO.parseEditableData(jsonData);
              result.add(data);
          }
          return result;
      }