Fixed for ember 1.8

This works with ember 1.8, and I believe should work for older versions as well, since I am using all built in types/etc.


I confirmed that willDestroyElement and didInsertElement get called on the children appropriately.

    _scrollSelector: function() {
      return this.$().parent();
    }.property(),

I use antiscroll for scrollbar support, so I need to target the parent explicitly.