Add missing license text.

android_hokuyo/src/org/ros/rosjava/android/hokuyo/Scip20Device.java

@@ -1,7 +1,22 @@
+/*
+ * Copyright (C) 2011 Google Inc.
+ * 
+ * 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 org.ros.rosjava.android.hokuyo;
 
 import java.io.IOException;
-import java.util.List;
 
 import android.util.Log;
 

android_tutorial_hokuyo/src/org/ros/rosjava/android/tutorial/hokuyo/MainActivity.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2011 Google Inc.
+ * 
+ * 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 org.ros.rosjava.android.tutorial.hokuyo;
 
 import org.ros.rosjava.serial.R;