Rename mdv -> template_binding, remove experiemntal apis from dart:html

pkg/mdv/test/mdv_test_utils.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.
-
-library observe_utils;
-
-import 'dart:html';
-import 'package:observe/observe.dart';
-import 'package:unittest/unittest.dart';
-
-import 'package:observe/src/microtask.dart';
-export 'package:observe/src/microtask.dart';
-
-final bool parserHasNativeTemplate = () {
-  var div = new DivElement()..innerHtml = '<table><template>';
-  return div.firstChild.firstChild != null &&
-      div.firstChild.firstChild.tagName == 'TEMPLATE';
-}();
-
-recursivelySetTemplateModel(element, model, [delegate]) {
-  for (var node in element.queryAll('*')) {
-    if (node.isTemplate) {
-      node.bindingDelegate = delegate;
-      node.model = model;
-    }
-  }
-}
-
-dispatchEvent(type, target) {
-  target.dispatchEvent(new Event(type, cancelable: false));
-}
-
-class FooBarModel extends Observable {
-  @observable var foo;
-  @observable var bar;
-
-  FooBarModel([this.foo, this.bar]);
-}
-
-@reflectable
-class FooBarNotifyModel extends ChangeNotifier implements FooBarModel {
-  var _foo;
-  var _bar;
-
-  FooBarNotifyModel([this._foo, this._bar]);
-
-  get foo => _foo;
-  set foo(value) {
-    _foo = notifyPropertyChange(#foo, _foo, value);
-  }
-
-  get bar => _bar;
-  set bar(value) {
-    _bar = notifyPropertyChange(#bar, _bar, value);
-  }
-}
-
-observeTest(name, testCase) => test(name, wrapMicrotask(testCase));
-
-solo_observeTest(name, testCase) => solo_test(name, wrapMicrotask(testCase));