setup.py: make sure six is installed
setup.py: make sure six is installed

ixc/django-fluent-contents,django-fluent/django-fluent-contents,jpotterm/django-fluent-contents,django-fluent/django-fluent-contents,edoburu/django-fluent-contents,django-fluent/django-fluent-contents,edoburu/django-fluent-contents,edoburu/django-fluent-contents,ixc/django-fluent-contents,jpotterm/django-fluent-contents,ixc/django-fluent-contents,jpotterm/django-fluent-contents