dhruvaray/backbone-associations — pull request #54 by monokrome (2013-07-18 21:39:29+00:00)
Title: Pass relation to map transformations.

In cases much like the ones represented in #50, it is necessary to know the `relatedModel` or `relatedCollection` for a given relation from polymorphic or generic map transformations. Where there is no knowledge of what type of `Model` or `Collection` is being used - there is no way to know which type of object to instantiate.