[dune-pdelab] dune_static_assert

[Christian Engwer]

Hi Andi,

> in my github forks of dune-pdelab, dune-pdelab-howto, dune-typetree and
> dune-stuff you can find a branch "remove_static_assert" wherein
> "dune_static_assert" is replaced by "static_assert" and the includes to
> "dune/common/static_assert.hh" are removed.

we have discussed this before already and I'm sure several of use have
such patches already in their branches. We decided not to change this
behaviour before we have created a release branch. This hsould happen
in the next couple of days.

Ciao
Christian