Roundabout: The JoJo Mod

(Hopefully this will be the last critical bug fix popping up that forces me to push an update early)

• Fixed another critical crash, when you have other mods installed that make certain roundabout entity classes load load prematurely, making servers not work again. Servers also crash with creative mode roundabout npcs summoned, that was fixed as well.
• Experimenting with fog blocks (given with commands only atm) that only appear when justice fog is active