0.4.0
* Make the roles_attribute_name configureable in UserModel.
* Make the Ability user referece configureable in Ability.
* Test the generators.
* Test the railtie (currently implicity tested in dummy app).
* Add upgrade generator to move the now deprecated definitions to the new syntax.
* Remove old definition syntax and therefore deprecations.
* Remove ActiveSupport runtime dependency (which is just used for deprecation warnings).
0.5.0
* Abstract out the ActiveRecord extensions into a model adapter to become framework independent.
* Expand the generated tests to produce all the standard abilities: index,show,read,new,create,edit,update,destroy.
* Add test unit generator.
* Add install generator to allow overriding of the default tests.