Macro to use C++11 feature noexcept specifier.
Add test for CMake and autotools.

With GCC 4.4 or newer HAVE_INTEGRL_CONSTANT, HAVE_STD_HASH, and
HAVE_TYPE_TRAITS is always 1, no further testing necessary.
The test defines will be removed after the next Dune release.

This was used for backwards compatibility only.

Its call was removed from dune_mpi.m4 back in 2012.

Deprecate header and macro dune_static_assert.
Use static_assert instead.

This patch adds an AutoTools test that tests whether the compiler
supports the 'final' keyword.  It defines the DUNE_FINAL preprocessor
macro, which expands to 'final' if the keyword is supported, and
is empty otherwise.

Previously, the macros were installed to $(datadir)/aclocal. As we have
some macros in DUNE that are also installed for some Linux distributions
this caused conflicts in package managers. With this patch we install
them to $(datadir)/dune/aclocal to resolve this issue outlined in flyspray
task 1409
https://dune-project.org/flyspray/index.php?do=details&task_id=1409

The check for constexpr was not copied into the distribution.
Unfortunately, the autotools will only warn about a missing macro, but
give valid results otherwise. This patch adds the cxx11_constexpr.m4 to
Makefile.am, so that it is distributed on "make dist".

Previously a non existent file name (umfpack) was used in
Makefile.am. This broke the build with the message:

make[2]: *** Keine Regel vorhanden, um das Target »umfpack«,
  benötigt von »all-am«, zu erstellen.  Schluss.
make[2]: Leaving directory `/home/mblatt/src/dune/current/dune-common/build-auto/m4'

This patch fixes this by using the correct name.

This patch adds test for both CMake and autotools as the
build system.
UMFPack is used by several dune modules (e.g. fem and istl)
the only common required module by both is common. Therefore
we add the test here to make it usable for all modules.

BTW: These tests are taken from Dominics branch of dune-istl.
     Therefore he deserves the credit for them.

If not found, our own fallback implementation will be used.

[[Imported from SVN: r7124]]

[[Imported from SVN: r7056]]

[[Imported from SVN: r6801]]

[[Imported from SVN: r6596]]

[[Imported from SVN: r6568]]

[[Imported from SVN: r6567]]

to dune-istl.

[[Imported from SVN: r6566]]

This works pretty much the same way as DUNE_DEPRECATED (without message).

Thanks to Elias Pipping for implementing this.


[[Imported from SVN: r6556]]

[[Imported from SVN: r6554]]

[[Imported from SVN: r6540]]

[[Imported from SVN: r6462]]

[[Imported from SVN: r6461]]

[[Imported from SVN: r6352]]

(credits go to Steffen Müthing)

[[Imported from SVN: r6326]]

- fix config.h-comments for variadic templates

[[Imported from SVN: r6308]]

[[Imported from SVN: r6307]]

[[Imported from SVN: r6306]]

[[Imported from SVN: r6305]]

[[Imported from SVN: r6086]]