added missing public tag

git-svn-id: http://svn.code.sf.net/p/simox/code/trunk@628 042f3d55-54a8-47e9-b7fb-15903f145c44

VirtualRobot/Workspace/WorkspaceDataArray.h

@@ -42,7 +42,7 @@ namespace VirtualRobot
 	Stores a 6-dimensional array for the vertex data of a workspace representation.
 	Internally unsigned char data types are used (0...255)
 */
-class VIRTUAL_ROBOT_IMPORT_EXPORT WorkspaceDataArray : public WorkspaceData ,boost::enable_shared_from_this<WorkspaceDataArray>
+class VIRTUAL_ROBOT_IMPORT_EXPORT WorkspaceDataArray : public WorkspaceData , public boost::enable_shared_from_this<WorkspaceDataArray>
 {
 public:	
 	/*!