Merge branch 'feature/require-cxx14' into 'master'

Enforce support for C++-14

* This requires at least Dune 2.4.1.
* GCC 4.8 does not match this requirement

See merge request !151

CMakeLists.txt

@@ -23,6 +23,9 @@ include(DuneMacros)
 dune_project()
 dune_enable_all_packages()
 
+# enforce C++-14
+dune_require_cxx_standard(MODULE "DuMuX" VERSION 14)
+
 add_subdirectory(cmake/modules)
 add_subdirectory(doc)
 add_subdirectory(dumux)

dune.module

 Module: dumux
 Version: 2.10-git
 Maintainer: dumux@listserv.uni-stuttgart.de
-Depends: dune-grid (>= 2.4) dune-localfunctions (>= 2.4) dune-istl (>= 2.4)
+Depends: dune-common (>= 2.4.1) dune-grid (>= 2.4) dune-localfunctions (>= 2.4) dune-istl (>= 2.4)
 Suggests: dune-alugrid (>=2.4) dune-pdelab (>=2.0) dune-multidomain dune-cornerpoint dune-foamgrid (>=2.4)
 Whitespace-Hook: Yes