0.3.0

• root helper will raise a syntax error indicating that it should be used outside of modular_routes block.

• concern and concerns support:

  modular_routes do
    concern :commentable do
      resource :comments
    end
  
    concern :activatable do
      member do
        put :activate
        put :deactivate
      end
    end
  
    resources :articles, concerns: :activatable do
      concerns :commentable
    end
  end