Add missing header.

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@818851 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/webconsole-plugins/event/src/main/resources/OSGI-INF/metatype/metatype.xml b/webconsole-plugins/event/src/main/resources/OSGI-INF/metatype/metatype.xml
index 39b7f20..86cc7e4 100644
--- a/webconsole-plugins/event/src/main/resources/OSGI-INF/metatype/metatype.xml
+++ b/webconsole-plugins/event/src/main/resources/OSGI-INF/metatype/metatype.xml
@@ -1,4 +1,22 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+    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.
+-->
 <metatype:MetaData xmlns:metatype="http://www.osgi.org/xmlns/metatype/v1.0.0" localization="OSGI-INF/metatype/metatype">
     <OCD id="org.apache.felix.webconsole.plugins.event.internal.PluginServlet" name="%plugin.name" description="%plugin.description">
         <AD id="max.size" type="Integer" default="250" name="%max.size.name" description="%max.size.description"/>