[Gzz] 17th

[Tuomas Lukka]

Still a pretty slow day.

Some Delta and content tests, fixes.

This means that the "fallback" client should soon be able to save and load.
All we now need to do is to incorporate prefletresolver and test
and we can release 0.8 real... 0.8alpha1 is, I guess, just about ready any
time now.

Figured out how to change the shapes with the register combiners: by using
glEnable(GL_ALPHA_TEST) and putting into the alpha coordinate a dot-product
sum calculated in an as complicated way as possible. This can be done using just
the two general register combiners on the NV17.

        Tuomas