* gdk/gdkcursor.h: Directly include the contents
        of gdkcursors.h in the GdkCursorType enum.

        * gdk/gdkcursors.h: Deleted.

        * gdk/gdkkeysyms.h: Remove XFree86-specific keysyms, add
        header boilerplate.

        * gdk/Makefile.am: Remove the X-derived-headers rule.

        * gdk/tmpl/cursors.sgml: Document GdkCursor and standard cursors.