Add preview of 1984-2019

The 2020 winners are hinted it, but the source code is not there,
nor are the hints. Someone could look into the HTML and
see what was commented out, but that is not a problem because
WHO won is known and the name of their AWARD is known already.
Moreover a number of the winners have talked about what their
entirs do, so the commented out spoiler text is not a bit problem.

One will find HTML commented out with:

    <!-- XXX remove when 2020 is ready
    2020 links here
    XXX remove when 2020 is ready -->

The "XXX remove when 2020 is ready" string is found at the
start and end comment blocks.  Again, soneone could read
what was commented out, but that is OK since most of that
information is known or can be known.  The following files
have such HTML comment blocks in them.

    ./winners.html
    ./years-spoiler.html
    ./years.html

In addition, ./all/summary.txt was modified to not
include the 2020 entries for the momemt.

The 2020 winner code AND write-ups are NOT part of this set.

p.s. The all/all.tar.bz2 does not contain the 2020 source code (yet?).

2006/Makefile

@@ -0,0 +1,118 @@
+#
+# 2006 makefile
+#
+# Copyright (C) 2006-2009, Landon Curt Noll, Simon Cooper, Peter Seebach
+# and Leonid A. Broukhis. All Rights Reserved. Permission for personal,
+# educational or non-profit use is granted provided this copyright and
+# notice are included in its entirety and remains unaltered.  All other
+# uses must receive prior permission from the contest judges.
+
+
+# tool locations
+#
+SHELL= /bin/sh
+CP= cp
+CPP= cpp
+GUNZIP= gunzip
+LD= ld
+MAKE= make
+RM= rm
+SED= sed
+TAR= tar
+TRUE= true
+
+
+# Set X11_LIBDIR to the directory where the X11 library resides
+#
+X11_LIBDIR= /usr/X11R6/lib
+
+# Set X11_INCLUDEDIR to the directory where the X11 include files reside
+#
+X11_INCDIR= /usr/X11R6/include
+
+
+# optimization
+#
+# Most compiles will safely use -O3.  Some can use only -O2 or -O1 or -O.
+# A few compilers have broken optimizers and thus you may
+# not want anything.
+#
+#OPT=
+#OPT= -O
+#OPT= -O1
+#OPT= -O2
+OPT= -O3
+
+
+# default flags for ANSI C compilation
+#
+#CFLAGS=
+#CFLAGS= -Wall -W -ansi
+#CFLAGS= -Wall -W -ansi -pedantic
+#CFLAGS= -Wall -W -ansi ${OPT}
+CFLAGS= -Wall -W -ansi -pedantic ${OPT}
+
+
+# ANSI compiler
+#
+# Set CC to the name of your ANSI compiler.
+#
+# Some entries seem to need gcc.  If you have gcc, set
+# both CC and MAY_NEED_GCC to gcc.
+#
+# If you do not have gcc, set CC to the name of your ANSI compiler, and
+# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
+# to disable such programs.
+#
+CC= cc
+MAY_NEED_GCC= gcc
+
+
+# 2006 winners
+#
+WINNERS= birken borsanyi grothe hamre meyer monge night sloane stewart sykes1 \
+	sykes2 toledo1 toledo2 toledo3
+
+
+# default build
+#
+build: 
+	for i in ${WINNERS} ; do (cd $$i && ${MAKE} "ENTRY=$$i" "CC=${CC}" "X11_LIBDIR=${X11_LIBDIR}" "X11_INCDIR=${X11_INCDIR}" build) done
+
+# alternative executable
+#
+alt: 
+	for i in ${WINNERS} ; do (cd $$i && ${MAKE} "ENTRY=$$i" "CC=${CC}" "CFLAGS=${CFLAGS}" "X11_LIBDIR=${X11_LIBDIR}" "X11_INCDIR=${X11_INCDIR}" alt) done
+
+# data files
+#
+data: 
+	for i in ${WINNERS} ; do (cd $$i && ${MAKE} "ENTRY=$$i" data) done
+
+
+# utility rules
+#
+everything: build alt data
+
+love:
+	@echo 'not war?'
+
+haste:
+	$(MAKE) waste
+
+waste:
+	@echo 'waste'
+
+clean: 
+	for i in ${WINNERS} ; do (cd $$i && ${MAKE} "ENTRY=$$i" clean) done
+
+
+clobber: 
+	for i in ${WINNERS} ; do (cd $$i && ${MAKE} "ENTRY=$$i" clobber) done
+
+nuke: clobber
+	@${TRUE}
+
+install: all
+	@${TRUE}
+