Rails 3.1 Where to put some application.coffee code ? file tree

In 3.0 we are using an application.coffee file and some specific
controllers .coffee files using the following file tree

- app
  - coffescripts
        > application.coffee
        - controllers
              > control1.coffee
              > control2.coffee

In 3.1 , I wonder where I should put the former application.coffee
scripts , as the structure as been changed in it seems not to be
recommended to write code directly into the application.js file

- app
   - assets
      - javascripts
          > application.js
          - controllers
              > control1.coffee
              > control2.coffee

thanks for your feedback