Move some initial setup to the 'opened' event

Avoid inbox views digging too deep into conversation views.

// FREEBIE

js/views/inbox_view.js

@@ -56,9 +56,6 @@
                     $el = view.$el;
                 }
                 $el.prependTo(this.el);
-                $el.find('.message-list').trigger('reset-scroll');
-                $el.trigger('force-resize');
-                conversation.markRead();
                 conversation.trigger('opened');
             }
         });