* Test the generators. * Test the railtie * Expand the 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. * Make the Ability user referece configureable in Ability. * Abstract out the ActiveRecord extensions into a model adapter. * Make the roles_attribute_name configureable in UserModel. * Remove ActiveSupport runtime dependency.