[498dcce] lobotomizer can't be used to clear metal wreckage

Subject says it all. Threw away my old shovel because, well, a lobo has to be better, then I found out that it’s even worse (for clearing) than a stone shovel.

As a sidenote, what quality or whatever is used to determine this? It has dig 2 and pretty much everything else when compaired to the shovel in the jsons.

Maybe just replace that list with " has_items_with_quality( “DIG”, 2, 1 ) " ?

I believe this is fixed/about to be fixed in the current experimentals.