Roll Observatory packages and add a roll script

packages/polymer/e2e_test/bad_import2/test/import_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.
+
+/// Tests how canonicalization works when using the deployed app.
+library bad_import2.import_test;
+
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
+import 'package:polymer/polymer.dart';
+
+import 'package:bad_import2/a.dart';
+
+main() {
+  initPolymer();
+  useHtmlConfiguration();
+
+  setUp(() => Polymer.onReady);
+
+  test('html import', () {
+    expect(a, 0, reason: 'html import was not resolved correctly.');
+  });
+}