Rename vmservice/client to vmservice/observatory to match package name.

runtime/bin/vmservice/client/lib/src/elements/stack_frame.dart

Index: runtime/bin/vmservice/client/lib/src/elements/stack_frame.dart
===================================================================
--- runtime/bin/vmservice/client/lib/src/elements/stack_frame.dart	(revision 38989)
+++ runtime/bin/vmservice/client/lib/src/elements/stack_frame.dart	(working copy)
@@ -1,14 +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 stack_frame_element;
-
-import 'observatory_element.dart';
-import 'package:polymer/polymer.dart';
-
-@CustomTag('stack-frame')
-class StackFrameElement extends ObservatoryElement {
-  @published ObservableMap frame;
-  StackFrameElement.created() : super.created();
-}