v5.4.8

-Tractors have been implemented! Craft tractors to autoharvest crops. Each tractor will autoharvest 150 crops before being used up.
-Tractors can be stacked up to 600 harvests and sprinklers can be stacked up to 36 autowaters.
-New item: Shield – 2.5x insurance for 2 days
-Diamond Shield's ID changed to diamondshield
-Add lottery and tractor information to bhelp
-3 new achievements
-Massive code optimizations