fix missing id tags on display tables

server/src/main/webapp/WEB-INF/jsp/fragment/displayelement-row.jsp

@@ -29,11 +29,11 @@
         <%= displayElement.getLabel() %>
     </td>
     <% if (displayElement.getType() == DisplayElement.Type.timestamp) { %>
-    <td class="timestamp">
+    <td class="timestamp" id="<%=StringUtil.escapeHtml(displayElement.getKey())%>">
         <%= StringUtil.escapeHtml(displayElement.getValue()) %>
     </td>
     <% } else { %>
-    <td>
+    <td  id="<%=StringUtil.escapeHtml(displayElement.getKey())%>">
         <%= StringUtil.escapeHtml(displayElement.getValue()) %>
     </td>
     <% } %>