Aggressive culling of sheep, cows, pigs within 30 block distance

Following request for a more aggressive passive cull. Clear since we have >2000 mobs most of the time and only 200-400 hostiles that most of this is animals and neutrals. As it says, increase the distance for pig, sheep and cow culling to reduce numbers you can hold in a small field.

Increasing aggression may cause slaughter on initial release, suggest warning.