Fixed an issue that caused entities to spawn async when they shouldn't
Fixed several issues when reloading Iris via the reload command
Added Scripts as a new data type in Iris. Scripts are written in JavaScript, and you can access any part of the Iris Engine through it.
Added Preprocessors. Whenever an Iris type is loaded (a biome or dimension, etc) you can optionally run a script on that data type before it's used by the generator. You can use this to modify loading data through a script filter.
Added entity script spawns. Instead of spawning an entity normally, you can create a script that takes in a location (and world) and return a normal Bukkit Entity!