(menu-bar-files-menu): Renamed from ...-file-menu.

(menu-bar-files-menu): Renamed from ...-file-menu.
(menu-bar-tools-menu, menu-bar-search-menu): New menu bar menus.
Items moved from Edit and Files menus.
Add Split Window, One Window, Find Tag and Postscript print menu items.
(nonincremental-search-forward, nonincremental-search-backward)
(nonincremental-re-search-forward, nonincremental-re-search-backward)
(noninteractive-repeat-search-forward)
(noninteractive-repeat-search-backward)
(noninteractive-repeat-re-search-forward)
(noninteractive-repeat-re-search-backward): New commands.