A new command for signs. Refreshing them, cleaning them, and verifying
them. Changed up some internal apis, if you were using them sorry for
breaking it. Also, really update the signs when we jail someone who is
offline via a new event.
These errors only happen when the plugin didn't load successfully,
you'll need to check further up in the console/server log to see what
actually caused this error.
The variables possible are:
* %player% - the player's last known name
* %uuid% - the player's uuid, or what can fit on a sign
* %reason% - the reason the player was jailed
* %jailer% - the person/thing who jailed this player
* %afktime% - the amount of time the player has been afk
* %timeinminutes% - the amount of remaining time the player has in
minutes
If the player is jailed forever, then it pulls from the language file
`jailedforeversign` property.
