Video.js solve the problem is not compatible with ie8

Use the video player, often let some browsers problems, such as compatible ie8 browser. Use at work is video.js.

If you need to be compatible, the introduction of two js library, you can do a compatible browser ie8

    <script src="http://vjs.zencdn.net/ie8/1.1.2/videojs-ie8.min.js"></script>
    <script src="http://api.html5media.info/1.1.4/html5media.min.js"></script>