Include documentation in source tarball.
Include documentation in source tarball.

This makes the tarballs on PyPi suitable for distribution packages again. The
Debian package would otherwise not be able to provide a documentation package.

tabo/django-treebeard,tabo/django-treebeard,django-treebeard/django-treebeard,tabo/django-treebeard,tabo/django-treebeard,django-treebeard/django-treebeard,skirsdeda/django-treebeard,skirsdeda/django-treebeard,skirsdeda/django-treebeard,skirsdeda/django-treebeard,django-treebeard/django-treebeard