Fix generation of Nether and End
Fix generation of Nether and End

BlazePowered/Blaze-Server,keke142/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,Tonodus/WaterGleam,Tonodus/GlowSponge,jimmikaelkael/GlowstonePlusPlus,kukrimate/Glowstone,Postremus/GlowstonePlusPlus,kukrimate/Glowstone,Tonodus/GlowSponge,Tonodus/WaterGleam,BlazePowered/Blaze-Server,GlowstoneMC/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,GlowstoneMC/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,kukrimate/Glowstone,GlowstoneMC/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,keke142/GlowstonePlusPlus,Tonodus/GlowSponge,Tonodus/WaterGleam,LukBukkit/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,GlowstoneMC/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,Tonodus/WaterGleam,jimmikaelkael/GlowstonePlusPlus,keke142/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,kukrimate/Glowstone,keke142/GlowstonePlusPlus,BlazePowered/Blaze-Server,Tonodus/GlowSponge,GlowstonePlusPlus/GlowstonePlusPlus,BlazePowered/Blaze-Server,LukBukkit/GlowstonePlusPlus