UndoItemRenameVolume
UndoItemRenameVolume(BVolume &volume, const char* newName);
virtual ~UndoItemRenameVolume();
fUndo = new UndoItemRenameVolume(volume, newName);
UndoItemRenameVolume::UndoItemRenameVolume(BVolume &volume,
UndoItemRenameVolume::~UndoItemRenameVolume()
UndoItemRenameVolume::Undo()
UndoItemRenameVolume::Redo()