commit b1adaf7 has introduced new bug and that's manage.py is no longer being installed. I believe this has been caused by the fact that manage.py has moved.
Of course you can copy manage.py manually and it will work, although you must copy it into a new location in order to do so, but I don't believe this is wanted, is it?
python manage.py is equivalent to django-admin.py --settings=graphite.settings.
I guess there are a couple of options:
With my current knowledge, either one works for me. Should having manage.py or any equivalent mean code duplication, I vote for the former - document django-admin.py.
Fix #568 -- document django-admin.py instead of now inexistent manage.py