Feature: multi-line block-comments for coffee-script

What should I write ? … I promised support for multi-line block-comments as I missed them very much, and here they are:

    ###
    This is supported now.
    
    @description no indention, but with @doctags
    ###

------

    ###
    # This is supported too …
    #
    # @description no indention, but with @doctags and useless #-prefix per line
    ###
      ###
      @decription … as well as this (indention + @doctags)…
      ###
      ###
      # @decription … or this (indention, @doctags and useless #-prefix per line) …
      ###

------

    ###*
     * This is not yet supported due to `foldPrefix` clashes with markdown-comments
     * as described here: https://github.com/nevir/groc/pull/110 . Hence this is currently
     * a simple bulletlist, but actually it's meant to render the following Javascript-comment:
     ###
    /**
     * This is not yet supported due to `foldPrefix` clashes with markdown-comments
     * as described …
     */

It was not as trivial as I thought, but the final solution works and looks quite simple …