Bug with Animals

[tigerw]

I have fixed it already in a local branch.
But I do not want to upload. This is mojang code and xoft don't like Mojang copies.

Meh, make it look like our code (capitalisation, maybe a comment or two) and no one can tell the difference between a Mojang constant and a MCServer constant.

Even the arrow firing code (by xoft) contains a line specifically saying that "it's what the client uses"