

*.shapes files are from the OSX App Shapes (http://shapesapp.com/)

It's hoped that this diagrams can be replaced by something from a multi-platform tool such as:

* Dia
* http://sphinx-doc.org/ext/graphviz.html (see http://graphviz.org/content/cluster as a possible example)
* aafig (https://bitbucket.org/birkenfeld/sphinx-contrib)
