10-10 Update

Dungeon layout tweak- walls now begin where the first set of floor tiles
used to begin- and added player character and monster objects in their
most basic, barebones forms.  Movement checking enabled.  Currently, the
dungeon is reduced in size from x=240 to x=32 for testing purposes;
there are also a few bugs in the placement of the initial monster and
the initial player in that they will sometimes spawn outside of movable
terrain.