Fix copy button in Django 1.10, fix DeprecationWarning in 1.8+
Fix copy button in Django 1.10, fix DeprecationWarning in 1.8+

edoburu/django-fluent-contents,edoburu/django-fluent-contents,edoburu/django-fluent-contents,django-fluent/django-fluent-contents,django-fluent/django-fluent-contents,django-fluent/django-fluent-contents