uberVU/mozaic — pull request #57 by skidding (2013-02-08 13:31:07+00:00)
Title: Marked changed attributes in RawData after any alteration

Backbone.Model tracked every attribute changed using the `changed` dict and the `hasChanged` method. We should port that to RawData in order to make it easier to check whether or not an attribute has changed inside a channel event. Especially since there's no `change_attribute` event for RawData.