Rename 'CAPTIVE_XXX_IS_OBJECT' to 'CAPTIVE_IS_XXX_OBJECT'.
Move sandbox master 'directory_read' bufering from sandbox/ to client/.
Move sandbox master 'file_seek' 'offset' maintenance from sandbox/ to client/.
Rename 'CAPTIVE_XXX_IS_OBJECT' to 'CAPTIVE_IS_XXX_OBJECT'.
Move sandbox master 'directory_read' bufering from sandbox/ to client/.
Move sandbox master 'file_seek' 'offset' maintenance from sandbox/ to client/.