Add footer.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Remove django-notification from dependency.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Release 0.2.1

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>