Fix tests

js/models/messages.js

@@ -35,7 +35,7 @@
         model: Message,
         database: Whisper.Database,
         storeName: 'messages',
-        comparator: function(m) { return -m.get('timestamp'); },
+        comparator: 'timestamp',
         destroyAll: function () {
             return Promise.all(this.models.map(function(m) {
                 return new Promise(function(resolve, reject) {

js/views/message_list_view.js

@@ -14,11 +14,7 @@ var Whisper = Whisper || {};
         this.$el.scrollTop(this.el.scrollHeight);
     },
     addAll: function() {
-      this.$el.html('');
-      this.collection.each(function(model) {
-        var view = new this.itemView({model: model});
-        this.$el.prepend(view.render().el);
-      }, this);
+      Whisper.ListView.prototype.addAll.apply(this, arguments); // super()
       this.scrollToBottom();
     },
   });