When Collection.sort is called and autoSort is true, resort the list

This is just a quick change to allow Collections to be resorted when using CollectionBinder. Whenever Collection.sort is invoked (e.g. when resorting a grid by column heading) then apply the CollectionBinder sorting to DOM elements as well.

Since I couldn't find any test specs related to autosort, I didn't add any additionals for this (would have taken too long, sorry). If I've missed something obvious, let me know and I'll add specs.