made restrict,prolong and galerkin restrict of super-class visible

[[Imported from SVN: r3730]]

fem/transfer/truncatedtransfer.hh

@@ -45,6 +45,9 @@ namespace Dune {
      */
     void restrict (const DiscFuncType & f, DiscFuncType &t, const Dune::BitField& critical) const;
 
+    /** \brief Restriction of  MultiGridTransfer*/
+    using Dune::MultiGridTransfer< DiscFuncType >::restrict;
+
     /** \brief Prolong level cL of f and store the result in level fL of t
      *
      * \param critical Has to contain an entry for each degree of freedom.
@@ -52,6 +55,9 @@ namespace Dune {
      */
     void prolong(const DiscFuncType& f, DiscFuncType &t, const Dune::BitField& critical) const;
 
+    /** \brief Prolongation of  MultiGridTransfer*/
+    using Dune::MultiGridTransfer< DiscFuncType >::prolong;
+
     /** \brief Galerkin assemble a coarse stiffness matrix
      *
      * \param critical Has to contain an entry for each degree of freedom.
@@ -60,6 +66,9 @@ namespace Dune {
     void galerkinRestrict(const OperatorType& fineMat, OperatorType& coarseMat,
                           const Dune::BitField& critical) const;
 
+    /** \brief Galerkin restriction of  MultiGridTransfer*/
+    using Dune::MultiGridTransfer< DiscFuncType >::galerkinRestrict;
+
     /** \brief Bitfield specifying a subsets of dofs which need to be recomputed
      * when doing Galerkin restriction
      *