Combine django-html5-boilerplate with some "best practices".

This fork added some "best practices" from Django developer Jeff Knupp's blog entry "Starting a Django 1.6 project the right way". The blog suggests dividing Installed_Apps into three parts for better organization, including the Fabric and South apps (for deployment and migrations, respectively) and also includes a "generic" fab file, to be modified by the developer. These are presented as good things to do as you are developing a project, but this fork codes them into the template.