Reorganize mdv and observe packages

tests/html/mdv_observe_utils.dart

Index: tests/html/mdv_observe_utils.dart
diff --git a/tests/html/mdv_observe_utils.dart b/tests/html/mdv_observe_utils.dart
deleted file mode 100644
index 56c3cebc3fc2710a2bcbff7102feb6c837d14d2b..0000000000000000000000000000000000000000
--- a/tests/html/mdv_observe_utils.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// 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 mdv_observe_utils;
-
-import 'package:mdv_observe/mdv_observe.dart';
-
-toSymbolMap(Map map) {
-  var result = new ObservableMap.linked();
-  map.forEach((key, value) {
-    if (value is Map) value = toSymbolMap(value);
-    result[new Symbol(key)] = value;
-  });
-  return result;
-}