Release of libvirt-python-6.0.0
Release of libvirt-python-6.0.0

* setup.py: updated for the release

Signed-off-by: Daniel Veillard <8c3f1b821d9adf233f787f1527ecaa1537ea24a2@redhat.com>

libvirt/libvirt-python,libvirt/libvirt-python,libvirt/libvirt-python