This really enables header listing of all dependent modules for me. cmake
takes noticeable longer though - if this bother too many people we have to
revert.

This really disables all warning from dependent modules for me.

These can be now changed using ccmake. Additionally default to ALUGRID_.
This made HAVE_ALUGRID true in the testcases for me.

this adds dunestuff to the DUNE_LIBS

tested example with SGRId, ALUGRID_SIMPLEX and UGGRID,
some tests and some ehadercheks
hope I did not break anything else...

I think it wont hurt in other usecases

This reverts commit 5d552579cc0467c80ca1d644ede91cd1fb56b371.

Conflicts:

	dune/stuff/function/expression.hh

Reverted because CMake hard fails if Eigen's not present:
CMake Error at cmake/FindEigen3.cmake:33 (file):
  file Internal CMake error when trying to open file:
  ABSPATH/multiscale-super/dune-stuff/../local/include/eigen3/Eigen/src/Core/util/Macros.h
  for reading.

you can now use HAS_STD_BEGIN_END and HAS_LAMBDA_FUNCTIONS to wrap code