* src/workbook-control-component.c: Include "dialogs.h" to get
prototype for dialog_search.

* src/bonobo-io.c (cleanup_stream): Return status.

* src/workbook-control.[ch], src/workbook-control-priv.h
(wb_control_edit_set_sensitive): New virtual, replacing
workbook_edit_set_sensitive in workbook-edit. Made parameter names
descriptive because it's now used far away from where it is
defined.

* src/workbook-control-component.c (wbcc_edit_set_sensitive): Null
implementation of new virtual.
(workbook_control_component_init): Construct, but don't show, the
edit area, to avoid warnings when range selecting.
(workbook_control_component_ctor_class): Register
edit_set_sensitive implementation.

* src/workbook-control-gui.[ch] (wbcg_toolbar_timer_clear): Moved
from workbook-edit, renamed and exported.

* src/workbook-control-gui.h (cb_thaw_ui_toolbar): Moved from
workbook-edit.
(wbcg_edit_set_sensitive): Implementation of new virtual
wb_control_edit_set_sensitive, moved from workbook-edit and
renamed from workbook_edit_set_sensitive.
(workbook_control_gui_ctor_class): Register edit_set_sensitive
implementation.

* src/workbook-edit.c (toolbar_timer_clear, cb_thaw_ui_toolbar,
workbook_edit_set_sensitive): Move to workbook-control-gui.
(wbcg_edit_finish, (wbcg_edit_start, wbcg_edit_attach_guru,
wbcg_edit_detach_guru):
s/workbook_edit_set_sensitive/wb_control_edit_set_sensitive/