Update changelog about Django 1.7 support
Update changelog about Django 1.7 support

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