Removed the deprecated NodeVisitor::getLocalToWorld/WorldToLocal methods as

this are replaced by the osg::computeLocalToWorld/WorldToLocal() functions
found in osg/Transform.

Made the ReleaseTextureAndDisplayListsVisitor a public nested class of
osgDB::DatabasePager to allow it to be used in the TXP plugin, and added
usage of this visitor to the TXP plugin to make sure that textures and
display lists are released during the update thread.

src/osgProducer/Viewer.cpp

@@ -27,7 +27,6 @@ class PickIntersectVisitor : public osgUtil::IntersectVisitor
 public:
     PickIntersectVisitor()
     { 
-        setNodeMaskOverride(0xffffffff); // need to make the visitor override the nodemask to visit invisible actions
     }
     virtual ~PickIntersectVisitor() {}
     
@@ -59,11 +58,17 @@ public:
     PickVisitor()
     { 
         xp=yp=0;    
-        setNodeMaskOverride(0xffffffff); // need to make the visitor override the nodemask to visit invisible actions
         setTraversalMode(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN);
     }
     ~PickVisitor() {}
 
+	// Aug 2003 added to pass the nodemaskOverride to the PickIntersectVisitor
+     //   may be used make the visitor override the nodemask to visit invisible actions
+    inline void setNodeMaskOverride(osg::Node::NodeMask mask) {
+		_piv.setNodeMaskOverride(mask);
+		_nodeMaskOverride = mask; }
+
+
     virtual void apply(osg::Projection& pr)
     { // stack the intersect rays, transform to new projection, traverse
         // Assumes that the Projection is an absolute projection