HUGE COMMIT OF EPIC GLORY
NEW VERSION VERY SOON

Closes Issue #19 - Fixed the bucket exchange in the Gui
Closes Issue #10 - Backpacks will place on death up to 12 blocks away and 7 blocks below or above the point where you die.
New GUI. Crafting GUI deprecated, a crafting matrix is now located in the regular GUI.
MOAR SLOTS.

Remade the whole backpack model.
Remade all the textures to fit the new model and make a 500% increase in awesomeness. New skins for old backpacks.
Some backpacks now have extra odds and ends...
Added 9 new backpacks. They're all in creative mode only for the moment.
Fixed many derps.
Cleaned a bunch of code.
Optimizations everywhere!
Optimized the GUI calculations.
No more shading when using NEI.
GUI now updates when the player inventory changes.
I might have broken the cow.
Fixed a bunch of localizations - Dear translators, please uptade the translations if you can.
Added Extended compatibility for Tinker's Construct and Thermal Expansion.
Added more tools to the tool slots: Flint&Steel, Shears, FishingRod
Made the GUI a lot smarter.
Fixed the cow again for the millionth time.
You can't do a Backpackception anymore (putting a backpack inside of itself, or a backpack in a backack). Hopefully.
Fixed several visual glitches.
Commented a bunch of code.