MultiBana

Repair elytra with leather (and disable phantoms)

Removes baby zombies

Revamps the core mechanics and removes the bad features

Craft a bed with mixed wool colors

Break natural leaves while you ride a horse

Endermites don't spawn when using Ender Pearls

Removes infested blocks

Removes copper, with iron replacing it in the few "uses" it has.

Removes Granite, Diorite, Andesite, Tuff

Removes EXP and revamps the enchanting system