Moved project configuration + extracted Hero -> BukkitHero
Rework Effect. MobEffects (NMS) are no longer used...

no longer used, all functionality is with PotionEffects. Additionally,
all of the addEffect functions have had their boolean parameters removed,
as they converted the argument into a MobEffect, which doesn't actually
do anything. At all.

5 NMS classes were removed in this commit. 1 remains for legacy purposes.