TG: - commented out the old adamantine recipe.

- removed adamantine ore
- removed adamantine mineral walls
- added a new adamantine recipe, but it's commented out for the moment
- added a new material, mythril, with a nice urist sprite
- added a mythril coin
- added a mythril recipe, but it's commented out for the moment

So yeah, adamantine will have a new recipe and will no longer be gained from ore
and added mythril to the procesisng unit, stacking unit and coin press.

NOTE TO URIST:
to enable this, you only have to uncomment the part with your name in
machine_processing.dm Everything else is already in working order. Oh and you
need to make the coin and sheet sprite.
Revision: r3146
Author: 	 baloh.matevz

code/modules/mining/machine_unloading.dm

@@ -20,7 +20,6 @@
 		for (var/dir in cardinal)
 			src.output = locate(/obj/machinery/mineral/output, get_step(src, dir))
 			if(src.output) break
-		processing_objects.Add(src)
 		return
 	return