mc-server/MCServer — pull request #559 by STRWarrior (2014-01-18 18:46:13+00:00)
Title: Removed the particles when a mob spawns.

Currently when a mob spawns the server also spawns particles.
If a plugin doesn't want those particles then there is no way to get rid of them.
Since vanilla only spawns particles on a mob spawn when it comes from a spawner it makes sense to remove the particle effect in the function and only generate them when a spawner spawns a mob.