ActiveRecord unlink() not applying events/behaviors on junction model - inconsistent with link() #37

When declaring a 'via' (not 'viaTable') relation the respsective behaviors of link() vs unlink() are a bit inconsistent.
link() will trigger events and use behaviors on the junction model provided by the 'via' modelClass while unlink() will not.

I think it is really awesome that link() uses insert() on the junction model, but conversely unlink() should also use delete() on the junction model.