Add a flag file for the experimental mode

Change-Id: I880b7c85dbc20f8d7590b7f65b5f898bfb2266f9

java/src/com/android/inputmethod/latin/define/ProductionFlag.java

+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * 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.
+ */
+
+package com.android.inputmethod.latin.define;
+
+public class ProductionFlag {
+    public static final boolean IS_EXPERIMENTAL = false;
+}