The includes for the X11 header files omitted the X11 and this means
running make will fail even if one has the files in a place that's in
the include path (default or via -I option).
Of course if one has X11 include files in a non-standard location (or
where the compiler doesn't look) they'll still have to use the -I
option.
We we move 1988-2004 entries from all of a year's winning entries
in a single directory to each winner being in their own sub-directory
under the given year directory.