Fixes to removed dependency on RefNodePath.

src/osg/NodeTrackerCallback.cpp

@@ -114,7 +114,7 @@ void NodeTrackerCallback::update(osg::Node& node)
     
     osg::NodePath nodePath;
     for(ObserveredNodePath::iterator itr = _trackNodePath.begin();
-        itr != _trackNodePath.begin();
+        itr != _trackNodePath.end();
         ++itr)
     {
         nodePath.push_back(itr->get());

src/osgProducer/Viewer.cpp

@@ -262,6 +262,18 @@ Viewer::~Viewer()
 {
 }
 
+osg::NodePath Viewer::getCoordinateSystemNodePath() const
+{
+    osg::NodePath nodePath;
+    for(ObserveredNodePath::const_iterator itr = _coordinateSystemNodePath.begin();
+        itr != _coordinateSystemNodePath.end();
+        ++itr)
+    {
+        nodePath.push_back(const_cast<osg::Node*>(itr->get()));
+    }
+    return nodePath;
+}
+
 void Viewer::setWriteImageFileName(const std::string& filename)
 {
     _writeImageFileName = filename;