Add relay built from git

Resolves facebook/relay#358

vendor/react-relay/lib/DliteFetchModeConstants.js

@@ -0,0 +1,23 @@
+/**
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule DliteFetchModeConstants
+ * @typechecks
+ */
+
+'use strict';
+
+var keyMirror = require('fbjs/lib/keyMirror');
+
+var DliteFetchModeConstants = keyMirror({
+  FETCH_MODE_CLIENT: null,
+  FETCH_MODE_PRELOAD: null,
+  FETCH_MODE_REFETCH: null
+});
+
+module.exports = DliteFetchModeConstants;