SpigotMC/Spigot-Server — pull request #70 by Puremin0rez (2013-12-13 00:14:27+00:00)
Title: Ability to configure if Zombies will be aggressive towards Villagers.

Pretty basic stuff. Tried to make diff as minimal as possible.

Useful for large survival servers that don't really care if zombies go after villagers, as zombies often get "stuck" trying to attack them throughout the night which leads to some heavy melee goal.