The feature I like the least by far in jMetal is the `jmetal.core.Solution` class. The point is that many algorithms require them to have particular fields. For example, NSGA-II is based on solution r…
Implementing #22
1. Prevent multiple drops from Netherwart, it should always drop 1
2. Drop netherwart from every killed Zombie Pigman when in Nether Fortress
[Extra Hard Mode code](https://github.c…