* src/file.c: Fix up includes to make the bonobo version build.

* src/plugin-service.c: Ditto.

* src/gui-file.c (ask_for_file_saver, gui_file_save_to_stream):
Disable for now to make the bonobo version build.

* src/workbook-control-gui.c (cb_file_send): Ditto.