Remove ShutdownServerMixIn now that we don't support 2.4 & 2.5.

Signed-off-by: Jelmer Vernooij <jelmer@samba.org>
Remove monkeypatch for older versions of urlparse.uses_netloc.

Signed-off-by: Jelmer Vernooij <jelmer@samba.org>
Merge branch 'python3' of git://github.com/garyvdm/dulwich