Merge branch 'remove_mpi_type_hindexed_warning' into 'master'

feature/use MPI_Type_create_hindexed instead of MPI_Type_hindexed which is deprecated for MPI>=2

:)

See merge request !29

dune/common/parallel/communicator.hh

@@ -1012,9 +1012,8 @@ namespace Dune
 
       // Create data type
       MPI_Datatype* type = &( send ? messageTypes[process->first].first : messageTypes[process->first].second);
-      MPI_Type_hindexed(info.elements, info.length, info.displ,
-                        MPITraits<typename CommPolicy<V>::IndexedType>::getType(),
-                        type);
+      MPI_Type_create_hindexed(info.elements, info.length, info.displ,
+                               MPITraits<typename CommPolicy<V>::IndexedType>::getType(), type);
       MPI_Type_commit(type);
       // Deallocate memory
       info.free();