update to polymer js 0.5.1

pkg/polymer/test/web_components_less_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library polymer.test.web.layout_test;
+library polymer.test.web.web_components_less_test;
 
 import 'dart:async';
 import 'dart:html';
 import 'dart:js';
 import 'package:polymer/polymer.dart';
 import 'package:unittest/html_config.dart';
 import 'package:unittest/unittest.dart';
 
 int elementsReadied = 0;
 
@@ skipping 13 matching lines @@
   ready() {
     elementsReadied++;
   }
 }
 
 main() => initPolymer().run(() {
   useHtmlConfiguration();
 
   setUp(() => Polymer.onReady);
 
-  test('platform-less configuration', () {
+  test('web-components-less configuration', () {
     var jsDoc = new JsObject.fromBrowserObject(document);
     var htmlImports = context['HTMLImports'];
 
     if (!ShadowRoot.supported || !(new LinkElement()).supportsImport) return;
 
     expect(elementsReadied, 2, reason: 'imported elements upgraded');
   });
 
 });