Add navigator menu items to select sub menu (& for gtk 2.16+ as a pop-up menu in the selector entry) [#15010]

2010-06-16 Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* src/GNOME_Gnumeric-gtk.xml.in: add new menu items
	* src/HILDON_Gnumeric-gtk.xml.in: ditto
	* component/Gnumeric-embed.xml.in: ditto
	* src/sheet-utils.c (gnm_sheet_guess_data_range): new
	* src/sheet-utils.h (gnm_sheet_guess_data_range): new
	* src/wbc-gtk-actions.c (cb_edit_goto_*): new
	(EditGoto*): new
	* src/wbc-gtk.c (cb_cs_go_*): new
	(wbc_gtk_cell_selector_popup): new
	(wbc_gtk_create_edit_area): connect the above (for gtk 2.16+)
	* src/workbook-control.h (wb_control_navigate_to_cell): new
	* src/workbook-control.c (wb_control_navigate_to_cell): new