Now there is a new feature in the config, if a villager can catch a emerald in the ground, it will heal the villager when it catches it! As always you can disable it in the config if you don't want it.
Also now when you pay a villager or a villager heals with emeralds it will desplay a effect on the villager.
I also upgraded the library of the NMS, so if anything is broke, tell me in the discussion page or github please, thanks!