Change the default path to icons so that "mkhowto" does the "right thing" by
default when used for 3rd-party docs.  This requires the standard Python docs
to specify a location, but they are a bit of a special case in sharing one set
of icons among several documents.
diff --git a/Doc/Makefile b/Doc/Makefile
index f76238a..2b8b9e0 100644
--- a/Doc/Makefile
+++ b/Doc/Makefile
@@ -73,10 +73,12 @@
 
 MKDVI=	   $(PYTHON) ../tools/mkhowto --paper=$(PAPER) --dvi
 MKHTML=	   $(PYTHON) tools/mkhowto --html --about html/stdabout.dat \
+		--iconserver ../icons \
 		--address $(PYTHONDOCS) --up-link ../index.html \
 		--up-title "Python Documentation Index" \
 		--global-module-index "../modindex.html" --dvips-safe
 MKISILOHTML=$(PYTHON) tools/mkhowto --html --about html/stdabout.dat \
+		--iconserver ../icons \
 		--l2h-init perl/isilo.perl --numeric --split 1 \
 		--dvips-safe
 MKISILO=   iSilo386 -U -y -rCR -d0