Fix bug #261: inconsistent labels in view menu and toolbar,
unsynchronized items.
* glayout.c (panel_view_menu_uiinfo panel_view_toolbar_uiinfo):
Made the view names consistent with the toolbar names. Also,
added underscore accelerators to the menu items.
(copy_uiinfo_widgets): New function to copy the widgets from an
uiinfo array into a widget array.
(create_container): Copy the uiinfo widgets to the panel
structure.
* gcmd.c (set_view_type): New function to set the list view type
and synchronize the menu and toolbar items.
(gnome_close_panel): Free the view menu/toolbar item arrays.