Playlists Divided in Sections

![screen shot 2014-12-02 at 1 06 49 am](https://cloud.githubusercontent.com/assets/4207886/5251946/a0fe0e88-79bf-11e4-9817-644e71d07eec.png)

I believe it would require lot of changes as I am not good at Backbone.
As above, I don't see the need for the 'value' argument to render here.

I would recommend rewriting this as:

addPlaylist: function(playlist, selector) {
     var view = new PlaylistView({model: playlist});
     this.$(selector).append(view.render().el);
}

This reduces reduplication of code. I would then add in the 'type' checks into addAllPlaylists, rather than adding all the playlists three times over, and then checking to see if they fit the right type. This is making three times as many views as it needs to because of the ordering of the checks.