add message field

contrib/templates/default/newboard.mustache

@@ -22,6 +22,14 @@
                 <button onclick="createBoard()">Create Board</button>
               </td>
             </tr>
+            <tr>
+              <th>
+                Comment
+              </th>
+              <td>
+             <textarea id="postform_message" type="text" name="message" cols=40 rows=5></textarea>
+              </td>
+            </tr>
             <tr>
               <th>
                 Captcha