Fix a few apparent TBA world consistency errors. (#65)

These are mostly cases of confusion between the "on the body"
and "about the body" slots (5 and 12).

But, there are also some that seem to just be misconfigured,
like non-weapons being wielded, worn items being unwearable,
weapons being worn instead of wielded, and items being worn
instead of held.

I have an independent MUD codebase that reads these files, and
so this gives me an ability to somewhat orthogonally test these,
and easily find this sort of issue.

I did avoid all the cases where it was clear this was done
intentionally, like all the cases where the second neck was
used for the missing face slot (masks, etc).

The ones fixed here all seem to really be (minor) bugs.

lib/world/obj/1.obj

@@ -223,7 +223,7 @@ yellow robe~
 a yellow robe~
 A yellow robe of the Magi was left here, how strange.~
 ~
-9 0 0 0 0 a 0 0 0 0 0 0 0
+9 0 0 0 0 ak 0 0 0 0 0 0 0
 3 0 0 0
 3 500 0 0 0
 E