* un-skip test and remove unused class definition
* fix build
* add InstallGenerator
* re-namespace generators
* remove module namespacing
* update README with new generator command
* inherit from Base instead of NamedBase
* add inheritance line to Generators section of README
* call #copy_file instead of #template
* remove skip functionality
* refactor once-used variable
* specify application_decorator.rb file instead of class
* move decorator generator back to rails namespace
* revert README change
* specify decorator class
* re-word template help text
* remove unnecessary describe block
* remove delegate_all from application_decorator template
* edit README
* use hook instead of invoke so it's easy to configure
* hook into controller_generator and scaffold_controller_generator
This feels more natural than invoking from the resource generator.
Decorators are closely related to controllers, views and helpers.
So they should be generated in that context.
If controller generation is disabled for say generating resources there
is no point in creating decorators.