davejachimiak/hash_out — pull request #2 by davejachimiak (2013-07-19 00:58:24+00:00)
Title: Hold mutate on exclude

Closes #1

This adds:
* a wrapper for the object so that delegated methods don't have to be privatized in the `HashOut` module. It also provides a clean way to generate a duplicated object.
* an `Excludable` module. It's extended on the duplicated object in order to collect exclusions.