2001-04-25  Jody Goldberg <jgoldberg@home.com>

	* src/sheet-style.c (sheet_style_get_list) : Add a horizontal merge
	  before dumping to a list.
	(cb_hash_to_list) : free elements that have been merged in the
	  horizonal step, but have not yet been removed.
	(cb_hash_merge_horiz) : new function. merge when possible, after a
	  merge either free the useless bit or mark it as useless for later
	  removal.
	(cb_style_list_add_node) : Use mstyle_equal for now to remerge
	  different instances of the same logical style.  This is necessary
	  until I finish the per sheet style index.
	(sheet_style_init) : add some sanity checks incase some bright boy
	  decides to up the size of sheet and forgets here.

	* src/xml-io.c (xml_sheet_write) : Add the properties for the
	  outline mode preferences.
	(xml_sheet_read) : ditto.

	* src/item-debug.h : fix the messages to include the module
	* src/item-bar.c : fix the item-debug grab/ungrab messages.
	(item_bar_update) : gnome_canvas_group_child_bounds is a deprecated
	  useless call.
	* src/item-edit.c : fix the item-debug grab/ungrab messages.
	(recalc_spans) : gnome_canvas_group_child_bounds is a deprecated
	  useless call.
	* src/item-grid.c : fix the item-debug grab/ungrab messages.
	(item_grid_update) : gnome_canvas_group_child_bounds is a deprecated
	  useless call.
	(item_grid_button_1) : If we are going to start selecting a range have
	  the grid to a grab on button down.  This should fix the pseudo-race
	  condition that was irritating the ExprEntry.

	* src/preview-grid.c (preview_grid_update) :
	  gnome_canvas_group_child_bounds is a deprecated useless call.
	* src/item-cursor.c : fix the item-debug grab/ungrab messages.
	(item_cursor_point) : animated cursors should never receive events.

	* src/cell-draw.c (cell_draw) : It is perfectly reasonable for
	  narrow/short cols/rows to produce cells that have negative sizes
	  with the margins removed.  exit silently.