Point release notes to contributing doc on unstable releases.
Point release notes to contributing doc on unstable releases.

imposeren/django-scribbler,caktus/django-scribbler,caktus/django-scribbler,caktus/django-scribbler,imposeren/django-scribbler,caktus/django-scribbler,imposeren/django-scribbler,imposeren/django-scribbler