Stacy's Wolves

1.0.2 - More spawn tweaking
    * Earth Wolves spawn in fewer locations (for example they no longer spawn in Desert or Mountain type biomes).
    * Birch Wolves now are far more likely to stick to... birchy... biomes. No more Jungles, Mountains or Mesas.
    * End Wolves should no longer spawn in the Eldritch biome created by Thaumcraft.
    * Wolves will probably spawn a little less frequently as duplicate spawn registrations have been removed/reduced.
    * Blacklisted Nether and End biome types for any wolf that shouldn't spawn in those places.
    * Most wolves have had their spawn probabilities and max pack sizes tweaked.