Fix mutable_queue.hpp with old Boost versions

boost/property_map.hpp has moved in recent Boost versions.

STL_Extension/include/CGAL/internal/boost/mutable_queue.hpp

@@ -22,7 +22,7 @@
 #include <vector>
 #include <algorithm>
 #include <functional>
-#include <boost/property_map/property_map.hpp>
+#include <CGAL/internal/boost/property_map.h>
 #include <CGAL/internal/boost/mutable_heap.hpp>
 #include <CGAL/internal/boost/array_binary_tree.hpp>
 #include <iterator>

STL_Extension/include/CGAL/internal/boost/property_map.h

@@ -0,0 +1,33 @@
+// Copyright (c) 2011  GeometryFactory (France).
+// All rights reserved.
+//
+// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public License as
+// published by the Free Software Foundation; version 2.1 of the License.
+// See the file LICENSE.LGPL distributed with CGAL.
+//
+// Licensees holding a valid commercial license may use this file in
+// accordance with the commercial license agreement provided with the software.
+//
+// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+//
+// $URL$
+// $Id$
+//
+// Author(s)     : Laurent Rineau
+
+// This file includes either <boost/property_map/property_map.hpp> or
+// <boost/property_map.hpp> depending on the version of Boost.
+
+#ifndef CGAL_INTERNAL_BOOST_PROPERTY_MAP_H
+#define CGAL_INTERNAL_BOOST_PROPERTY_MAP_H
+
+#include <boost/version.hpp>
+#if BOOST_VERSION >= 104000
+  #include <boost/property_map/property_map.hpp>
+#else
+  #include <boost/property_map.hpp>
+#endif
+
+#endif // CGAL_INTERNAL_BOOST_PROPERTY_MAP_H