add GCS support to docs server

third_party/google_appengine_cloudstorage/cloudstorage/__init__.py

+# Copyright 2014 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+# either express or implied. See the License for the specific
+# language governing permissions and limitations under the License.
+
+"""Client Library for Google Cloud Storage."""
+
+
+
+
+from .api_utils import RetryParams
+from .api_utils import set_default_retry_params
+from cloudstorage_api import *
+from .common import CSFileStat
+from .common import GCSFileStat
+from .common import validate_bucket_name
+from .common import validate_bucket_path
+from .common import validate_file_path
+from errors import *
+from storage_api import *