The driver solves the PDE given by the first form in forms. This is a
first step towards instationary problems.

Some work on parameter classes, a bugfix on the splitting algorithm
some simplifications in the generation stage

I suspect it to account for some problems!

The cache_context functionality helps greatly here.

much more clever!

... to later insert analysis/feedback loop

It was nonsense, as it did everything done lateron anyway.

Introduce a new topsum splitter