ZEPPELIN-143: last-minute cleanup

zeppelin-zengine/pom.xml

@@ -168,6 +168,7 @@
       <groupId>com.google.truth</groupId>
       <artifactId>truth</artifactId>
       <version>0.27</version>
+      <scope>test</scope>
     </dependency>
 
   </dependencies>

zeppelin-zengine/src/main/java/org/apache/zeppelin/notebook/repo/NotebookRepoVersioned.java

@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.zeppelin.notebook.repo;
 
 import java.io.IOException;