switch to Apache 2.0 License to be consistent with imported sources

LICENSE

@@ -1,14 +1,23 @@
 Copyright (c) 2015 Dailymotion (http://www.dailymotion.com)
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is furnished
-to do so, subject to the following conditions:
+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.
+
+src/remux/mp4-generator.js and src/demux/exp-golomb.js implementation in this project
+are derived from the HLS library for video.js (https://github.com/videojs/videojs-contrib-hls)
+
+That work is also covered by the Apache 2 License, following copyright:
+Copyright (c) 2013-2015 Brightcove
 
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

README.md

@@ -136,7 +136,7 @@ hls.js can be configured and controlled easily, click [here](API.md) for details
 
 ## License
 
-  hls.js is released under [MIT License](LICENSE)
+  hls.js is released under [Apache 2.0 License](LICENSE)
 
 ## Contributing