removed to 16 bit constraint of BasicType, as it results in an ICE.

[[Imported from SVN: r4619]]

common/geometrytype.hh

@@ -33,7 +33,7 @@ namespace Dune {
   private:
 
     /** \brief Basic type of the element */
-    BasicType basicType_ : 16;
+    BasicType basicType_;
 
     /** \brief Dimension of the element */
     unsigned int dim_;