Reorganize mdv and observe packages

pkg/mdv/test/custom_element_bindings_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.
 
 library custom_element_bindings_test;
 
 import 'dart:async';
 import 'dart:html';
-import 'package:mdv_observe/mdv_observe.dart';
+import 'package:mdv/mdv.dart' as mdv;
+import 'package:observe/observe.dart';
 import 'package:unittest/html_config.dart';
 import 'package:unittest/unittest.dart';
-import 'mdv_observe_utils.dart';
+import 'observe_utils.dart';
 
 main() {
+  mdv.initialize();
   useHtmlConfiguration();
   group('Custom Element Bindings', customElementBindingsTest);
 }
 
 sym(x) => new Symbol(x);
 
 customElementBindingsTest() {
   var testDiv;
 
   setUp(() {
@@ skipping 88 matching lines @@
 
   test('template bind uses overridden custom element bind', () {
 
     var model = toSymbolMap({'a': new Point(123, 444), 'b': new Monster(100)});
 
     var div = createTestHtml('<template bind>'
           '<my-custom-element my-point="{{a}}" scary-monster="{{b}}">'
           '</my-custom-element>'
         '</template>');
 
-    TemplateElement.instanceCreated.listen((fragment) {
+    mdv.instanceCreated.listen((fragment) {
       for (var e in fragment.queryAll('my-custom-element')) {
         new MyCustomElement.attach(e);
       }
     });
 
     div.query('template').model = model;
     deliverChangeRecords();
 
     var element = div.nodes[1];
 
@@ skipping 67 matching lines @@
         });
         return;
     }
     real.bind(name, model, path);
   }
 
   void unbind(String name) {
     switch (name) {
       case 'my-point':
         if (_sub1 != null) {
-          print('!!! unbind $name');
           _sub1.cancel();
           _sub1 = null;
         }
         return;
       case 'scary-monster':
         if (_sub2 != null) {
-          print('!!! unbind $name');
           _sub2.cancel();
           _sub2 = null;
         }
         return;
     }
     real.unbind(name);
   }
 
   void unbindAll() {
     unbind('my-point');
@@ skipping 49 matching lines @@
   }
 
   void clear() => _map.clear();
   void forEach(void f(K key, V value)) => _map.forEach(f);
   Iterable<K> get keys => _map.keys;
   Iterable<V> get values => _map.values;
   int get length => _map.length;
   bool get isEmpty => _map.isEmpty;
   bool get isNotEmpty => _map.isNotEmpty;
 }