License comment header added

msg_speed.html

@@ -1,3 +1,15 @@
+<!--
+ Copyright 2017, Bart Butenaers
+ 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:https://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.
+-->
 <script type="text/x-red" data-template-name="msg-speed">
  <div class="form-row">
  <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>