Upgrade jPlayer library from 2.5.0 (7th November 2013) to 2.7.0 (1st Sep...

This fixes my playback issues on Ubuntu 12.04, where no audio at all was played.

I tested this on Linux with chrome and firefox and tested with and without flash enabled in both browsers.  Rigorous testing would necessitate many other platforms since jplayer just as an abstraction to all the different methods of playback.

Played a couple songs from the library, and listened to live stream.  UI looks ok too.