make headercheck pass

[[Imported from SVN: r6129]]

dune/common/densevector.hh

@@ -3,6 +3,9 @@
 #ifndef DUNE_DENSEVECTOR_HH
 #define DUNE_DENSEVECTOR_HH
 
+#include <limits>
+
+#include "genericiterator.hh"
 #include "ftraits.hh"
 
 namespace Dune {

dune/common/fvector.hh

@@ -9,11 +9,8 @@
 #include <cstdlib>
 #include <complex>
 #include <cstring>
-#include <limits>
 
 #include "exceptions.hh"
-#include "genericiterator.hh"
-
 #include "array.hh"
 #include "densevector.hh"