Add requirements to automatically build the documentation using sphinx
Add basic configuration for documentation
Add django-docs app to deliver documentation as part of the app under /docs/
Add generating/updating of the docs to the setup and update scripts

closes #58

Adapt settings
Add i18n urls to central url conf
Add language chooser to base.html
Adapt readme and utils

add Utils directory
add Utils README
add setup script
add check script
add update script
document usages in top-level README