Added support for osg::State::s/getInitialViewMatrix();

Added slideshow3D examples to the runexamples.bat.

Fixed DatabasePager to work with the latest OpenThreads.

src/osg/State.cpp

@@ -23,6 +23,7 @@ State::State()
 {
     _contextID = 0;
     _identity = new osg::RefMatrix(); // default RefMatrix constructs to identity.
+    _initialViewMatrix = _identity;
     _projection = _identity;
     _modelView = _identity;
 

src/osgDB/DatabasePager.cpp

@@ -260,14 +260,8 @@ void DatabasePager::run()
 
         }
         
-//         // hack hack hack... sleep for 1ms so we give other threads a chance..
-//         #ifdef WIN32
-//             Sleep(1);
-//         #else
-//             usleep(1000);
-//         #endif
-
-        yield();
+        // go to sleep till our the next time our thread gets scheduled.
+        Yield();
 
     }
     

src/osgUtil/SceneView.cpp

@@ -553,6 +553,7 @@ void SceneView::draw()
     //osg::Timer_t tend = timer.tick();
     //std::cout<<"time to flush rendering objects"<<timer.delta_m(tstart,tend)<<std::endl;
 
+    if (_viewMatrix.valid()) _state->setInitialViewMatrix(_viewMatrix.get());
 
     RenderLeaf* previous = NULL;
     if (_displaySettings.valid() && _displaySettings->getStereo())