Rewrote osg:Statistics so that it is PrimitiveFunctor as is now completely

decoupled from osg::Drawable.  The Drawable::getStats() virtual method
no longer exists.

Updated the Viewer to use the osg::Statistics incarnation and reformated stats
to clean it up.

src/osgUtil/IntersectVisitor.cpp

@@ -493,7 +493,7 @@ void IntersectVisitor::apply(Geode& geode)
 {
     if (!enterNode(geode)) return;
 
-    for(int i = 0; i < geode.getNumDrawables(); i++ )
+    for(unsigned int i = 0; i < geode.getNumDrawables(); i++ )
     {
         intersect(*geode.getDrawable(i));
     }

src/osgUtil/RenderBin.cpp

@@ -1,6 +1,8 @@
 #include <osgUtil/RenderBin>
 #include <osgUtil/RenderStage>
 
+#include <osg/Statistics>
+
 #include <algorithm>
 
 using namespace osg;
@@ -186,13 +188,10 @@ bool RenderBin::getStats(osg::Statistics* primStats)
             Drawable* dw= rl->_drawable;
             primStats->addOpaque(); // number of geosets
             if (rl->_modelview.get()) primStats->addMatrix(); // number of matrices
-            if (dw) { // then tot up the types 1-14
-                // commenting out as having intrusive stats in base classes is
-                // undersirable.
-                dw->getStats(*primStats); // use sub-class to find the stats for each drawable
-                
-                // use an AttributeOption to get the stats we require.
-                dw->applyAttributeOperation(*primStats);
+            if (dw)
+            {
+                // then tot up the primtive types and no vertices.
+                dw->applyPrimitiveOperation(*primStats); // use sub-class to find the stats for each drawable
             }
         }
         somestats=true;

src/osgUtil/RenderStage.cpp

@@ -1,8 +1,10 @@
 #include <stdio.h>
 #include <osg/Notify>
+#include <osg/Statistics>
 
 #include <osgUtil/RenderStage>
 
+
 using namespace osg;
 using namespace osgUtil;