controller generator should create asset files as well

[vmcilwain]

For .coffee files:

# Place all the behaviors and hooks related to the matching controller here.
# All this logic will automatically be available in application.js.
# You can use CoffeeScript in this file: http://coffeescript.org/

For .scss files:

// Place all the styles related to the organizations controller here.
// They will automatically be included in application.css.
// You can use Sass (SCSS) here: http://sass-lang.com/