Added Export for new osgQt lib

include/osgQt/Export

@@ -0,0 +1,52 @@
+/* -*-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 OSGQT_EXPORT_
+#define OSGQT_EXPORT_ 1
+
+#if defined(WIN32) && !(defined(__CYGWIN__) || defined(__MINGW32__))
+    #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 OSGQT_EXPORT
+        #  elif defined( OSGQT_LIBRARY )
+        #    define OSGQT_EXPORT   __declspec(dllexport)
+        #  else
+        #    define OSGQT_EXPORT   __declspec(dllimport)
+        #endif
+#else
+        #define OSGQT_EXPORT
+#endif 
+
+#endif
+
+
+/**
+
+\namespace osgQt
+
+The osgQt utility library provides various classes to aid the integration of OpenSceneGraph and Qt.
+
+*/
+
+