If it is impossible for other (non-wolf) roles to have killed at night,
we do not deduct from the traitor count. This logic isn't perfect yet,
but should cover the majority of cases.
Causing way too many bugs, need to use a more sane method of breaking
the cmd API, and only do so when it's actually ready to go. My
personal preference is to make the new API use @command instead of @cmd.
This reverts commits c90d35e6c0a9ba96692e9d73bbe27efca405d542 and 5f5966a8b49e5214c82d806ac43a2553754fdee6.
