Added barebones framework to get appengine to host our test data.

tools/testing/perf_testing/appengine/app.yaml

Index: tools/testing/perf_testing/appengine/app.yaml
===================================================================
--- tools/testing/perf_testing/appengine/app.yaml	(revision 0)
+++ tools/testing/perf_testing/appengine/app.yaml	(revision 0)
@@ -0,0 +1,47 @@
+# Copyright (c) 2011, 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.
+
+application: google.com:dartperf
+version: 1
+runtime: python
+api_version: 1
+
+handlers:
+- url: /(.*\.html)
+  mime_type: text/html
+  static_files: static/\1
+  upload: static/(.*\.html)
+
+- url: /(.*\.js)
+  mime_type: text/javascript
+  static_files: static/\1
+  upload: static/(.*\.js)
+
+- url: /(.*\.json)
+  mime_type: application/json
+  static_files: static/\1
+  upload: static/(.*\.json)
+  expiration: "1h"
+
+# image files
+- url: /(.*\.(bmp|gif|ico|jpeg|jpg|png))
+  static_files: static/\1
+  upload: static/(.*\.(bmp|gif|ico|jpeg|jpg|png))
+
+# index files
+- url: /(.+)/
+  static_files: static/\1/index.html
+  upload: static/(.+)/index.html
+  expiration: "15m"
+
+- url: /(.+)
+  static_files: static/\1/index.html
+  upload: static/(.+)/index.html
+  expiration: "15m"
+
+# site root
+- url: /
+  static_files: static/index.html
+  upload: static/index.html
+  expiration: "15m"