Fix entities with passengers cannot travel thorough portal (MC-67) and other passenger related features.
Add compatibility between Modified Biome Source and TerraBlender.
Add portal support to cart contraption, coupled cart, and compatibility with other portal mods.
Add mushroom fields single biome world type as separate dimension.
Link Overworld to The End dimension with additional The End Gateway tweaks and special support for Happy Ghast from Vanilla Backport mod.
