Adapted dgspace to the functionspace changes

[[Imported from SVN: r1302]]

fem/dgspace.hh

@@ -12,6 +12,7 @@
 
 namespace Dune {
 
+  enum { DGFSpaceId = 123456789 };
 
   //**********************************************************************
   //
@@ -55,7 +56,7 @@ namespace Dune {
 
     /** \todo Please doc me! */
     DGDiscreteFunctionSpace ( GridType & g , int level ) :
-      DiscreteFunctionSpaceType (g, 123456789),
+      DiscreteFunctionSpaceType (g, DGFSpaceId, level),
       dm_ ( g ), base_(*this, polOrd),
       mapper_(dm_.indexSet(), base_.getNumberOfBaseFunctions(), level)
     {}