Bukkit/Bukkit — pull request #508 by dumptruckman (2012-01-31 16:39:03+00:00)
Title: Added entity id's as per http://www.minecraftwiki.net/wiki/Data_values#Entity_IDs

Calling it TypeId as to not confuse it with an entity instance's entityId.
MONSTER was removed from MC so put null. Should it have been zombie?
Squashed the commits and put on a new branch for cleanliness.