Disable automatic equiti of pcke dup items for players, and fixed index issues in Player.setCurrentItemOrArmor.
Revert Forge's disabling of canPlayerPickUp

Forge 529 sets canPlayerPickUp = false on EntityPlayer NBT
load. CraftBukkit however uses this flag to control player
item pickup, beyond vanilla's behavior:
https://github.com/Bukkit/CraftBukkit/commit/6e8781b6e40a97cfb85258472c28e162e73f1682
So we keep it set, allowing players to pick up items once again.
Fixed entity colision above max world height, and below 0. Closes #400
Change usage of ketSet/get to entrySet in OreDictionary, closes #422
clarify what the size is measured in for the dormant chunk cache. -.-
ItemStack sensitive versions of Item.getPotionEffect and Item.isPotionIngredient Closes #321
WorldGen*Trees shoud not respect custom soils. Closes #355
Added unload event for client worlds Closes #405
Add water and lava to liquid dictionary by default, closes #419
Bump version to 6.6.2, declaring Forge for MC 1.4.7 feature complete, as 1.5 is on the horizon, only bug fixes from this point on. Unless something major happens on Mojang's end.
Finish update to Forge 6.6.2.533
ItemStack sensitive versions of Item.getPotionEffect and Item.isPotionIngredient Closes #321