Separate ghost timer for Murderers & Outlaws

This setting allows us to change the time logoff ghosts last until
penalty for Murderers & Outlaws. It defaults to 60 seconds, as these
players are advanced veterans with full initiative. They should not have
a chance to 'save themselves' with alt characters like innocents do.

Innocents don't have initiative, so we give them ghost time to organize
a defense.

Murderers do have initiative, so they shouldn't have a second chance if
they fail.