Added beginnings of new osgUI library, a replacement for osgWidget that works fully in 3D/stereo and is scriptable.

include/osgUI/Export

@@ -0,0 +1,57 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
+ *
+ * This library is open source and may be redistributed and/or modified under
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * OpenSceneGraph Public License for more details.
+*/
+
+// The following symbol has a underscore suffix for compatibility.
+#ifndef OSGUI_EXPORT_
+#define OSGUI_EXPORT_ 1
+
+#include<osg/Config>
+
+#if defined(_MSC_VER) && defined(OSG_DISABLE_MSVC_WARNINGS)
+    #pragma warning( disable : 4244 )
+    #pragma warning( disable : 4251 )
+    #pragma warning( disable : 4267 )
+    #pragma warning( disable : 4275 )
+    #pragma warning( disable : 4290 )
+    #pragma warning( disable : 4786 )
+    #pragma warning( disable : 4305 )
+    #pragma warning( disable : 4996 )
+#endif
+
+#if defined(_MSC_VER) || defined(__CYGWIN__) || defined(__MINGW32__) || defined( __BCPLUSPLUS__) || defined( __MWERKS__)
+    #  if defined( OSG_LIBRARY_STATIC )
+        #    define OSGUI_EXPORT
+        #  elif defined( OSGVIEWER_LIBRARY )
+        #    define OSGUI_EXPORT   __declspec(dllexport)
+        #  else
+        #    define OSGUI_EXPORT   __declspec(dllimport)
+        #endif
+#else
+        #define OSGUI_EXPORT
+#endif
+
+#endif
+
+
+/**
+
+\namespace osgViewer
+
+The osgViewer library provides high level viewer functionality designed to make it easier to write a range of different types of viewers,
+from viewers embedded in existing windows via SimpleViewer, through to highly scalable and flexible Viewer and Composite classes.  A
+set of event handlers add functionality to these viewers so that you can rapidly compose the viewer functionality tailored to your needs.
+Finally the viewer classes can be adapted to work with a range of different window toolkit API's via GraphicsWindow implementations,
+with native Win32, X11 and Carbon implementations on Windows, Unices and OSX respectively, and other window toolkits such as WxWidgets, Qt etc.
+*/
+
+