Bukkit

• Added per-world support. See the Algorithm page for help.
• Added per-world support of allowing or blocking certain mobs based on entity ID.
• Snow Golem, chicken egg throw and chicken egg dispense can be disabled per world.
• Drastically changed configuration, once again. This will hopefully be the last time it's changed. Hopefully.
• Removed custom mob naming. I'm sorry, the time it would take me to keep it up to date with this new configuration system made me realize... when would someone actually need this? You can still use custom mob permissions with nospawneggs.id.<id>, but the name will return as "Entity". Don't whine, you'll live without it.

I tested this for quite a while, but I'm sure I left an NPE in there somewhere. If you want to help, play around with mobs unrecognized to the plugin (/give goosemonkey97 383 1 53), I didn't spend too terribly much time in that sketchy area since people shouldn't be getting there in the first place.