Automatically convert cached output to new format.
Automatically convert cached output to new format.

Reduce possible 500 errors during upgrades.

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