Merge pull request #115 from SmartyP/master

Adding 'btnSubmit' ID to contact form button so it disables when clicked

index.html

@@ -508,7 +508,7 @@
                                     </strong>
                                 </li>
                             </ul>
-                            <button type="button" class="btn btn-default" data-dismiss="modal"><i class="fa fa-times"></i> Close</button>
+                            <button id="btnSubmit" type="button" class="btn btn-default" data-dismiss="modal"><i class="fa fa-times"></i> Close</button>
                         </div>
                     </div>
                 </div>