switchover to libxml2 easier.

	* components/help/converters/gnome-db2html2/gdb3html.h:
	* components/help/hyperbola-nav-index.c:
	* components/help/hyperbola-nav-search.c:
	* libnautilus-extensions/nautilus-directory-async.c:
	* libnautilus-extensions/nautilus-directory-metafile.c:
	* libnautilus-extensions/nautilus-directory-metafile.h:
	* libnautilus-extensions/nautilus-directory-private.h:
	* libnautilus-extensions/nautilus-file.c:
	* libnautilus-extensions/nautilus-icon-factory.c:
	* libnautilus-extensions/nautilus-link-set.c:
	* libnautilus-extensions/nautilus-link.c:
	* libnautilus-extensions/nautilus-theme.c:
	* libnautilus-extensions/nautilus-volume-monitor.c:
	* libnautilus-extensions/nautilus-xml-extensions.h:
	* librsvg/rsvg.c:
	* src/nautilus-bookmark-list.c:
	* src/nautilus-bookmark-parsing.c:
	* src/nautilus-bookmark-parsing.h:
	* src/nautilus-link-set-window.c:
	* src/nautilus-property-browser.c:
	* src/nautilus-sidebar.c:
	* src...