improve .gitignore files, fix index.html links, sync CNAME

fix experimental web site links in experimental index.html

sync CNAME with https://github.com/ioccc-src/winner/blob/master/CNAME

improve .gitignore files

Added to each .gitignore file, comments on how to sort.

Put into winner .gitignore files, ignore *.dSYM files.

Put into winner .gitignore files, ignore indent.c,
indent.o and indent files.  This is done so that the
winner directory can more self contained.

We did not put into winner .gitignore files, however,
excludes of .-files as found in the top level .gitignore file.
As .-files are not allowed by mkiocccentry, the top level
.gitignore file remains sufficient.

Added to year level .gitignore files, excludes of
mkentry or iocccsize files as needed.

Sorted (via sort -d -u) all .gitignore file.

2006/birken/.gitignore

@@ -1,3 +1,9 @@
+#
+# sort with: sort -d -u
 birken
 birken.orig
+*.dSYM
+indent
+indent.c
+indent.o
 prog.orig

2006/borsanyi/.gitignore

@@ -1,4 +1,10 @@
+#
+# sort with: sort -d -u
 borsanyi
-example.gif
 borsanyi.orig
+*.dSYM
+example.gif
+indent
+indent.c
+indent.o
 prog.orig

2006/grothe/.gitignore

@@ -1,3 +1,9 @@
+#
+# sort with: sort -d -u
+*.dSYM
 grothe
 grothe.orig
+indent
+indent.c
+indent.o
 prog.orig

2006/hamre/.gitignore

@@ -1,3 +1,9 @@
+#
+# sort with: sort -d -u
+*.dSYM
 hamre
 hamre.orig
+indent
+indent.c
+indent.o
 prog.orig

2006/meyer/.gitignore

@@ -1,3 +1,9 @@
+#
+# sort with: sort -d -u
+*.dSYM
+indent
+indent.c
+indent.o
 meyer
 meyer.orig
 prog.orig

2006/monge/.gitignore

@@ -1,3 +1,9 @@
+#
+# sort with: sort -d -u
+*.dSYM
+indent
+indent.c
+indent.o
 monge
 monge.alt
 monge.orig

2006/night/.gitignore

@@ -1,3 +1,9 @@
+#
+# sort with: sort -d -u
+*.dSYM
+indent
+indent.c
+indent.o
 night
 night.alt
 night.orig

2006/sloane/.gitignore

@@ -1,4 +1,10 @@
+#
+# sort with: sort -d -u
+*.dSYM
+indent
+indent.c
+indent.o
+prog.orig
 sloane
 sloane.alt
 sloane.orig
-prog.orig

2006/stewart/.gitignore

@@ -1,6 +1,12 @@
+#
+# sort with: sort -d -u
+*.dSYM
+indent
+indent.c
+indent.o
+*.png
+prog.orig
 stewart
 stewart.html
-*.xbm
-*.png
 stewart.orig
-prog.orig
+*.xbm

2006/sykes1/.gitignore

@@ -1,9 +1,15 @@
+#
+# sort with: sort -d -u
 cube.gif
-sykes1
-sykes1.html
-sykes1.orig
+*.dSYM
+indent
+indent.c
+indent.o
 prog.orig
-sykes1.out
-sykes1.alt.out
+sykes1
 sykes1.alt
 sykes1.alt.html
+sykes1.alt.out
+sykes1.html
+sykes1.orig
+sykes1.out

2006/sykes2/.gitignore

@@ -1,3 +1,9 @@
+#
+# sort with: sort -d -u
+*.dSYM
+indent
+indent.c
+indent.o
+prog.orig
 sykes2
 sykes2.orig
-prog.orig

2006/toledo1/.gitignore

@@ -1,3 +1,9 @@
+#
+# sort with: sort -d -u
+*.dSYM
+indent
+indent.c
+indent.o
+prog.orig
 toledo1
 toledo1.orig
-prog.orig

2006/toledo2/.gitignore

@@ -1,5 +1,11 @@
+#
+# sort with: sort -d -u
+C
+*.dSYM
+indent
+indent.c
+indent.o
+prog.orig
 toledo2
 toledo2.alt
 toledo2.orig
-prog.orig
-C

2006/toledo3/.gitignore

@@ -1,5 +1,11 @@
+#
+# sort with: sort -d -u
+*.dSYM
+indent
+indent.c
+indent.o
+prog.orig
 toledo3
+toledo3.orig
 toledo3-sbar
 toledo3-txt
-toledo3.orig
-prog.orig