a4793944b3
We now check whether structure generation is allowed. This can be configured on servers and when creating single-player worlds. If set to false, Rift Gateways will not generate. Rift clusters still generate. That was an intentional feature - we could make the setting disable those as well if we want.
DimDoors
Dimensional Doors for Minecraft Adds several items that allow the player to move between and create dimensions
see the MC forum topic for details