moiristo/deep_cloneable — pull request #21 by ChristopheBelpaire (2013-03-04 12:09:34+00:00)
Title: Compatibility for ruby 2.0 

fix the error :
```ruby /lib/deep_cloneable.rb:15:in `remove_method': method `dup' not defined in ActiveRecord::Base (NameError)

in the tests.
I'm not sure it's the cleanest way, but tests pass on 1.8.7, 1.9.2, 2.0.0 with this