get this thing somewhat working with django-cms 2.4

language chooser fix

some more fixing

don't need that
Quoting url argument
Missing block body on base template
Removing breaking imports
Fixing paremeters on template tag
Removing unused import
DetailView must be called using an slug field
This is, in fact, a ListView
Changing kwarg from author to slug
tag instance missing from context
{% URL %} tag has changed. quotation mark's should not be in reversed name anymore