Move back to the old implementation which seems to give significantly

better results for Arnes problems.

[[Imported from SVN: r1019]]

istl/paamg/dependency.hh

@@ -363,7 +363,7 @@ namespace Dune
     inline bool EdgeProperties::isOneWay() const
     {
       // Test whether only the first bit is set
-      return isStrong() && !isTwoWay();
+      //return isStrong() && !isTwoWay();
       return ((flags_) & std::bitset<SIZE>((1<<INFLUENCE)|(1<<DEPEND)))==(1<<DEPEND);
     }