Updated to slideshow3D to support animation + pausing of animation.

Updated associated osg/osgUtil classes that provide animation pausing.

src/osgDB/Registry.cpp

@@ -91,7 +91,7 @@ Registry::Registry()
     // comment out because it was causing problems under OSX - causing it to crash osgconv when constucting ostream in osg::notify().
     // notify(INFO) << "Constructing osg::Registry"<<std::endl;
 
-    _createNodeFromImage = true;
+    _createNodeFromImage = false;
     _openingLibrary = false;
     
     _useObjectCacheHint = false;