Roll Observatory packages and add a roll script

packages/polymer/test/noscript_test.dart

+// Copyright (c) 2013, 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.
+
+import 'dart:async';
+import 'dart:html';
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
+import 'package:polymer/polymer.dart';
+import 'package:template_binding/template_binding.dart';
+
+Future<List<MutationRecord>> onMutation(Node node) {
+  var completer = new Completer();
+  new MutationObserver((mutations, observer) {
+    observer.disconnect();
+    completer.complete(mutations);
+  })..observe(node, childList: true, subtree: true);
+  return completer.future;
+}
+
+main() => initPolymer().then((zone) => zone.run(() {
+  useHtmlConfiguration();
+
+  var ready = Polymer.onReady.then((_) {
+    var a = querySelector("#a");
+    templateBind(a).model = "foo";
+    return onMutation(a.parent);
+  });
+
+  setUp(() => ready);
+
+  test('template found with multiple noscript declarations', () {
+    expect(querySelector('x-a').shadowRoot.nodes.first.text, 'a');
+    expect(querySelector('x-c').shadowRoot.nodes.first.text, 'c');
+    expect(querySelector('x-b').shadowRoot.nodes.first.text, 'b');
+    expect(querySelector('x-d').shadowRoot.nodes.first.text, 'd');
+  });
+}));