Digging almost implemented, debugging verbs moved...



Can currently do simple digging things like make the wall flash upon
bumping it. Have yet to make walls become floors, and have yet to
make it /not/ do that to other icons. Coming along good, however, all
things considered.

I did make sure to move general.dmi to _general.dmi, so that it will
be the first in the editor-- Only affects preference. May move the systems
into their own folder(s?) later, but for now this works.
Fixed movement...



Temporary(?) fix to movement, which allows pathfinding to work while
allowing the mob to still be able to bump into obstacles (when they
get to them.) Required to keep pathfinding and still make digging work.