* HACKING: Fixed typo.

	* src/Makefile.am: Add DATADIR.
	* src/file-manager/Makefile.am: Add DATADIR.
	* src/file-manager/fm-directory-view.c:
	(fm_directory_view_real_merge_menus): Use DATADIR instead of
	NAUTILUS_DATADIR, since that's where the UI XML files are.
	* src/nautilus-window.c: (nautilus_window_constructed): Use
	DATADIR instead of NAUTILUS_DATADIR, since that's where the UI XML
	files are.

	* src/nautilus-shell-ui.xml: Fix some upper-cased accelerators. Not
	sure if they caused any real problem.

	* src/nautilus-window-menus.c: (bookmark_holder_free_cover): Added
	cover to avoid function type cast.
	(append_bookmark_to_menu): Use cover.
	(append_dynamic_bookmarks): Removed some commented out code