Update polymer tutorial; make directory paths match new sample structure

src/site/docs/tutorials/fetchdata/examples/its_all_about_you/web/packages/browser/interop.js

Index: src/site/docs/tutorials/fetchdata/examples/its_all_about_you/web/packages/browser/interop.js
diff --git a/src/site/docs/tutorials/fetchdata/examples/its_all_about_you/web/packages/browser/interop.js b/src/site/docs/tutorials/fetchdata/examples/its_all_about_you/web/packages/browser/interop.js
new file mode 100644
index 0000000000000000000000000000000000000000..ec02e5857ad195d2df1c15a768f83fda4b7fa098
--- /dev/null
+++ b/src/site/docs/tutorials/fetchdata/examples/its_all_about_you/web/packages/browser/interop.js
@@ -0,0 +1,9 @@
+// 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.
+
+// TODO(jmesserly): remove this script after a deprecation period.
+if (typeof console == "object" && typeof console.warn == "function") {
+  console.warn('<script src="packages/browser/interop.js"> is no longer ' +
+      'needed for dart:js. See http://pub.dartlang.org/packages/browser.');
+}