Dummy Players upon client crash

[kurisubrooks]

When a user crashes, or is kicked by the game ("client session no longer valid"),
the user will appear to still be logged in, when they are not.
The user cannot login until kicked by a Moderator, or the server 'catches up'.

[kharidiron]

This has been an old issue. It has to due with the server factory not reaping the connections. I need to do some more research on how this is handled in StarryPy before I can attempt a fix.