Rename fletch -> dartino

tests/service_tests/performance/java/SnapshotRunner.java

 // Copyright (c) 2015, the Dartino 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.md file.
 
-import fletch.FletchApi;
+import dartino.DartinoApi;
 
 public class SnapshotRunner implements Runnable {
     SnapshotRunner(byte[] s) { snapshot = s; }
-    public void run() { FletchApi.RunSnapshot(snapshot); }
+    public void run() { DartinoApi.RunSnapshot(snapshot); }
     private byte[] snapshot;
 }