Links for collective.multilingual
mailto:r.navarro@iskra.cat
https://github.com/collective/collective.multilingual/issues
http://plone.org/products/dexterity
http://plone.org/products/archetypes
http://travis-ci.org/collective/collective.multilingual
http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2
http://en.wikipedia.org/wiki/Directed_acyclic_graph
http://docs.zope.org/zopetoolkit/