Added V0.9 code

-Reduced spider's hunger effect from Hunger IV to Hunger III.
-Spiders spawn fewer webs when not attacking.
-Cave Spiders, Witches, and Zombie Pigman now give 15exp.
-Wither Skeletons and Cave Spiders may now spawn anywhere in the Nether.
-Creeper fuse time increased.
-Zombies have an increased chance (15%-20%) of equipping a sword or
shovel; zombies are now more likely to equip a sword rather than a
shovel.
-Modified probabilities of monsters wearing armor and/or enchanted gear.
-Made Magma Cubes more common. (?)
-Witches may spawn near Nether Structures.
-Made Enderman do more damage.
-Cave Spiders no longer always give  Blindness II on contact; cave
spiders give fire resistance II rather than water breathing.
-Magma Slimes may ignite player on contact.
-Zombies can break down doors on any difficulty.
-Silverfish cause Weakness I instead of Weakness II.
-Fixed bug where monsters would not have a greater chance of wearing
armor.
-Blazes can spawn in Overworld caves if y <= 16.
-Blazes only drop blaze rods if in the Nether.
-Made Blazes rarer in the Nether in areas away from Nether Structures.
-Reduced amount of damage Zombie Pigman do.
-Reduced amount of help Zombie Pigman can call for.
-Reduced Creeper explosion radius from 5 to 4.
-Reduced explosion radius of live TNT Creeper drops from 2 to 1.
-Arrows From The Ground are less common.
-Zombie Pigman have a shorter detection field radius.
-Ghast firerate decreased back to default.