Minecraft Updates: Snapshot 12w41a & 12w41b

New Snapshot guys and girls! You can now Rename Items for your Adventure Maps with Anvils!

Complete changelist:

Added a new Anvil Block for repairing, merging & naming items. Very Useful for Map Makers
Three different damage states: Anvil, Slightly Damaged Anvil, and Very Damaged Anvil.
Anvils can not only rename tools and armor, but any item. Even better :)
Renamed placeable items will not retain their name if placed.
Anvils can merge enchantments. Can't wait for 1.4 now.
Items with two different enchantments will give an item with both.
Items with the same enchantment will increase the level of the enchantment if they have the same level or take only the highest if they don't.
Some enchantments can be lost during the merging because of incompatibility (ex: Sharpness I + Smite I) Fair enough would have been wayyy to Op'ed.
The first item seems to have the priority (the lost enchantments are on the second item)
Anvils can also be dropped in a similar manner to Sand, Gravel, and Dragon Eggs.
When landing on a mob, the anvil will deal damage relative to the distance it fell. Gonna do this on a chicken :D
Renamed "Chat Settings" to "Multiplayer Settings" and contains the old chat settings menu.
Option for cape-owners to hide their capes ingame.
Tweaks to debugging.
F3+H now shows tool and armor durability on damaged items - On maps it shows the zoom level.
Now shows which cardinal direction the player is facing on the f value.
The pie chart on the F3 overlay is now shown when opening it using shift+F3 instead of vice versa.
Mobs no longer forget that they are aggressive against a player in Creative mode after a few seconds anymore.
Creepers now can have custom explosion radius and fuse timer using edited mob spawners and NBT tags.
Effects given by the Beacon are now less intrusive on the screen.
Level-up sound now only plays every 5 levels and has been tweaked.
Gaining experience from breeding animals.