JabbR/JabbR — pull request #1106 by garysharp (2014-05-19 05:05:38+00:00)
Title: Add notification.mp3 to support IE

Internet Explorer [doesn't support](http://en.wikipedia.org/wiki/Html5_audio#Supported_audio_codecs) the WAV PCM format in `audio` tags. This PR contains `notification.mp3` (which was converted from `notification.wav`) and updates the `#notificationSound` `audio` tag to use this format if the browser prefers.