Added missing includes to calm make headercheck.

[[Imported from SVN: r1146]]

dune/istl/matrixmarket.hh

@@ -4,8 +4,11 @@
 #define DUNE_MATRIXMARKET_HH
 
 #include <ostream>
+#include <limits>
 #include "bcrsmatrix.hh"
 #include <dune/common/fmatrix.hh>
+#include <dune/common/tuples.hh>
+
 namespace Dune
 {
   namespace

dune/istl/paamg/graphcreator.hh

@@ -5,6 +5,7 @@
 
 #include "graph.hh"
 #include "dependency.hh"
+#include "pinfo.hh"
 #include <dune/istl/operators.hh>
 #include <dune/istl/bcrsmatrix.hh>
 #include <dune/common/tuples.hh>

dune/istl/supermatrix.hh

@@ -13,6 +13,8 @@
 #include "bvector.hh"
 #include <dune/common/fmatrix.hh>
 #include <dune/common/fvector.hh>
+#include <limits>
+
 namespace Dune
 {