[Dune] doci? grid-howto...

[Oliver Sander]

> ich hab ein Problem mit grid-howto. Offenbar kann man nicht
> uebersetzen mit ug aber ohne amiramesh (in
> unitcube_uggrid.hh)
>

Of course unitcube_uggrid.hh doesn't compile without AmiraMesh
because it _uses_ AmiraMesh.  However the grids being read
there are so simple that there is really no need to load
them from disk at all.  I'll take care of that.

Oliver