audio for grove app in fluid

fluid_grove_pop.js

(function(){
  var originalNewMessage = window.App.newMessage;
  window.App.bind('newMessage', function(message, hasMentions) {
    if (!hasFocus || currentPrivateChannel || currentChannel.id !== message.get('channel').id) {
      window.fluid.playSound("Pop");
    }
    return originalNewMessage(message, hasMentions);
  });
})();