NEW STUFF
* Updated textures names for 1.3 compatibility.
* Trapdoors for acacia, birch, dark oak, jungle and spruce wood.

TWEAKS
* Redesigned Redstone Dust.
* Fixed a few errors in item models.
* Temporarely removed Horses because old models are incompatible and new ones will take a lot of time, also because Mojang already change them 2 times and who know how many times they will change again.
