Show/Hide items for tool bar, location bar, sidebar, and
	status bar. The preference now controls only what you get
	for new windows. Any future "menus aren't quite right"
	issues should be filed as new bugs.

	* libnautilus-extensions/nautilus-global-preferences.h:
	* libnautilus-extensions/nautilus-global-preferences.c:
	(global_preferences_create_dialog), (global_preferences_register):
	Renamed NAUTILUS_PREFERENCES_DISPLAY_SIDEBAR and its ilk to
	NAUTILUS_PREFERENCES_START_WITH_SIDEBAR since these preferences
	now only affect the initial appearance of new windows. Also,
	clarified the text that appears in the preferences window for these.

	* src/nautilus-window-menus.c:
	Removed a bunch of code #ifdeffed WINDOW_ITEMS_TEST since the
	functionality it partly implemented is now implemented for real.
	(view_menu_show_hide_sidebar_callback),
	(view_menu_show_hide_tool_bar_callback),
	(view_menu_show_hide_location_bar_callback),
	(view_menu_show_hide_status_bar_callback):
	New menu callback functions that toggle the visibility of the
	various views.
	(nautilus_window_update_show_hide_menu_items): New function,
	sets the text in the show/hide menu items based on current
	visibility.
	(nautilus_window_initialize_menus): Put the Show/Hide menu items
	in the menu.
	* src/nautilus-window-private.h: Add prototype for
	nautilus_window_update_show_hide_menu_items.
	* src/nautilus-window.h: Renamed statusbar_ctx -> status_bar_context_id
	and statusbar_clear_id -> status_bar_clear_id; renamed show/hide
	locationbar/toolbar/statusbar to use location_bar, tool_bar, and
	status_bar (GTK bad English usage notwithstanding); added prototypes
	for nautilus_window_sidebar_showing and its ilk.
	* src/nautilus-window.c:
	(nautilus_window_initialize), (nautilus_window_destroy): Removed
	monitoring & unmonitoring of DISPLAY_SIDEBAR-type preferences since
	changing these preferences now has no dynamic effect.
	(nautilus_window_clear_status), (nautilus_window_set_status),
	(nautilus_window_constructed): Fixed wordgroupingification of
	status_bar et al.
	(show_dock_item), (hide_dock_item): New functions to share code of
	show/hide location bar & tool bar functions; these call
	nautilus_window_update_show_hide_menu_items now also.
	(dock_item_showing): New function, tests visibility of named dock item.
	(nautilus_window_hide_location_bar),
	(nautilus_window_show_location_bar),
	(nautilus_window_hide_tool_bar), (nautilus_window_show_tool_bar):
	Use new code-sharing functions.
	(nautilus_window_location_bar_showing),
	(nautilus_window_tool_bar_showing),
	(nautilus_window_sidebar_showing),
	(nautilus_window_status_bar_showing): New functions to test visibility
	(nautilus_window_hide_sidebar),
	(nautilus_window_show_sidebar),
	(nautilus_window_hide_status_bar),
	(nautilus_window_show_status_bar): These call
	nautilus_window_update_show_hide_menu_items now.
	(nautilus_window_show): Updated for naming changes.

	* RENAMING: Noted that the evil one-word "toolbar" phrase
	is still rampant in Nautilus.