Increment revision.

Increment revision since we built a setup package.
Add a quadtree for scene culling.

Add a quadtree and supporting classes and incorporate it into the drawing
code to cull objects outside the camera frustum.
Remove shadow map stencil texture.

Remove code that handled the shadow map stencil, since the soft edges are
done with smoothstep intrinsic now.
Rename terrain shader textures.

Cleanup of terrain shader, improve heightmap.
Remove old build.

Remove old build.
Unify terrain and object rendering.

Implement the render queue using render entries to collect drawing
parameters and call delegate methods to submit primitives.  Also allow
multiple terrain object to coexist and split heightmaps up into sectors
for more efficient culling.
Update the build.

Update the build.