Make headercheck pass in some directories.

dune/fem-dg/models/defaultmodel.hh

 #ifndef DUNE_FEM_DG_DEFAULTMODEL_HH
 #define DUNE_FEM_DG_DEFAULTMODEL_HH
 
+#include<limits>
+
 #include <dune/common/exceptions.hh>
 
+#include <dune/fem/misc/fmatrixconverter.hh>
+
 /**********************************************
  * Default model 
  *********************************************/

dune/fem-dg/operator/dg/operatorbase.hh

@@ -8,6 +8,7 @@
 
 // dune-fem-dg includes 
 #include <dune/fem-dg/pass/dgpass.hh>
+#include <dune/fem-dg/operator/dg/passtraits.hh>
 
 #ifdef USE_SMP_PARALLEL
 #include <dune/fem-dg/pass/threadpass.hh>

dune/fem-dg/operator/limiter/limitpass.hh

@@ -21,7 +21,7 @@
 #include <dune/fem/operator/1order/localmassmatrix.hh>
 
 // the lagrange point sets 
-#include <dune/fem/space/lagrangespace/lagrangepoints.hh>
+#include <dune/fem/space/lagrange/lagrangepoints.hh>
 #include <dune/fem/space/common/basesetlocalkeystorage.hh>
 
 #include <dune/fem/io/parameter.hh>

dune/fem-dg/solver/smartodesolver.hh

@@ -2,6 +2,7 @@
 #define DUNE_FEM_DG_SMARTODESOLVER_HH
 
 #include <limits>
+#include <dune/fem/misc/femtimer.hh>
 #include <dune/fem/solver/odesolver.hh>
 
 namespace Dune {