Description:

Stubs out a active_scaffolded controller. Pass the model name,
either CamelCased or under_scored.
The controller name is retrieved as a pluralized version of the model
name.

To create a controller within a module, specify the model name as a
path like 'parent_module/controller_name'.

This generates a controller class in app/controllers and invokes helper,
template engine and test framework generators.

Example:

`rails generate active_scaffold_controller CreditCard`

Credit card controller with URLs like /credit_card/debit.
    Controller:      app/controllers/credit_cards_controller.rb
    Functional Test: test/functional/credit_cards_controller_test.rb
    Helper:          app/helpers/credit_cards_helper.rb