Changed the DatabasePager so that it bypasses the Registry::readNode() method and calls

readNodeImplementation() directly to avoid calling the KdTreeBuilder.   

Updated wrappers.

include/osg/KdTree

@@ -227,6 +227,10 @@ class OSG_EXPORT KdTreeBuilder : public osg::NodeVisitor
     
         KdTreeBuilder();
     
+        KdTreeBuilder(const KdTreeBuilder& rhs);
+
+        virtual KdTreeBuilder* clone() { return new KdTreeBuilder(*this); }
+
         void apply(osg::Geode& geode);
     
         KdTree::BuildOptions _buildOptions;