Shopify/batman — pull request #604 by mattwdh (2012-12-03 23:03:26+00:00)
Title: Fix the copying of methods to Batman.Model

+ Remove the binding of Model instance methods to themselves
+ Rewrite how `Batman.Object#hashKey` was cached.

This passes the test suites in Batman and Shopify. It results in a small but nice memory improvement.

@hornairs @nciagra