gun_1.blend edited for issue #66:

 - gun_1.blend (mesh part) is almost finished.
Merge branch 'Grupo-A' of https://github.com/eloipuertas/ES2013Dimarts into Grupo-A
Copied inside Armature leftArm_v2_edited3.tga and edited
armatureHand.blend for issue #150:

 - We had some problems loading textures when the new armature was created
   so we did this. Consider onward to make a Texture folder outside the
   mesh folder or something.