gistfile1.txt

demolicious/
|-- LICENSE
|-- README
|-- content_part_layouts
|   |-- config.yml
|   |-- homepage.erb.html
|   `-- nl.yml
|-- images
|-- stylesheets
`-- views

OK, this is how it works:
-There is a implicit link between homepage.erb.html and themes.demolicious.homepage
-The config.yml file is special, it contains the definition of the parts used 
 in the content_part_layouts
-All other .yml files are loaded as i18n files.

#demolicious/content_part_layouts/homepage/config.yml
themes:
  demolicious:
    homepage:
    parts: [common, right, bottom]

#demolicious/content_part_layouts/homepage/nl.yml
en:
  themes:
   demolicious:
      homepage:
        name: Default homepage
        description: This is the default homepage
        parts:
          common: Common
          right: Right
          bottom: Bottom
nl:
  themes:
   demolicious:
      homepage:
        name: Standaard homepage
        description: Dit is de standaard homepage layout
        parts:
          common: Algemeen
          right: Rights
          bottom: Onder


#demolicious/content_part_layouts/homepage.html.erb
<div id="page_container">
  <div id="right">
    <%= @page.parts.right %>
  </div>
  <div id="common">
    <%= @page.parts.common %>
  </div>
  <div id="bottom">
    <%= @page.parts.bottom %>
  </div>
</div>