Bukkit

V1: Started
V1.1: Updated to include enderman/creepers/pig zombies
V1.2: Fixed to use LEFT-CLICK now, so that creeper spawners don't blow themselves up.
V1.21 [DEBUG]: Eggs have not been dropping from naturally spawned spawners on some servers - this to help me figure out what is causing this.
V1.22 Notice: This is a dev release, I'm still trying to fix the problem stated above, but hopefully this fixed it.
V1.3: Finally fixed the bugs; All mobs added except for ender dragon, mooshroom, ocelot,and iron/snow golems.
V2.0: Most early bugs fixed, most mobs added.
V2.1: (Possible) Fix for a bug with factions.
V2.15 Fixed factions bug; not taking eggs bug.
V2.5: Fixed a compatibility issue with mcmmo that allowed for infinite eggs (Thanks to GJ for the fast response to the api question! :) )
V2.6: With 1.3 coming out tommorow, I realized i needed to add a config, and a config option to prevent people from abusing the spawners to find the best trades and exploit it for emeralds. This new version generates a configuration file to be used.