2012-02-21  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* gnumeric-expr-entry.c (gee_delete_tooltip): return info on
	tooltip visibility, clear appearance timer
	(cb_show_tooltip): new
	(gee_create_tooltip): don't show tooltip
	(gee_set_tooltip): show tooltip
	(gee_set_tooltip_completion): delay first tooltip