Add method subentities and deprecate the template method 'count'

[[Imported from SVN: r428]]

dune/subgrid/subgrid/subgridentity.hh

@@ -211,7 +211,7 @@ class SubGridEntity<0, dim, GridImp> :
 
         //! Return the number of subEntities of codimension cc.
         template<int cc>
-        int count () const
+        int DUNE_DEPRECATED_MSG("Use subEntities(unsigned int) instead!") count () const
         {
             return hostEntity_->template count<cc>();
         }
@@ -227,6 +227,13 @@ class SubGridEntity<0, dim, GridImp> :
             return SubGridEntityPointer<cc,GridImp>(subGrid_, hostEntity_->template subEntity<cc>(i));
         }
 
+        /**
+         * \brief Number of subentities with codimension codim
+         */
+        unsigned int subEntities (unsigned int codim) const
+        {
+            return hostEntity_->subEntities(codim);
+        }
 
         //! First level intersection
         SubGridLevelIntersectionIterator<GridImp> ilevelbegin () const