rebase to develop branch

src/amdis/gridfunctions/FunctorGridFunction.hpp

@@ -136,7 +136,7 @@ namespace AMDiS
       }, lf.localFcts());
 
       using std::get;
-      auto const& lgfs_i = *get<decltype(_i)::value>(lf.localFcts());
+      auto const& lgfs_i = *get<VALUE(_i)>(lf.localFcts());
       return makeFunctorGridFunction(Operation::Multiplies{}, di_f, derivative(lgfs_i));
     };