auto_teleport_on_join now actually teleports players when they join
Added auto_teleport_on_start setting to cover the old behaviour
Added forceJump config setting, default true.
If false, players don't have to jump when a jump is available.
Added /checkers forcejump command to enable/disable forced jump per-game
Version => 1.1.2
Added ForceJumpCommand class, oops
Fixed a couple of command labels in usage output