Attached is a patch that makes the subdirs www/code and www/shopingcart
use the $(ERLC) variable from ../include.mk, which makes it possible to
"make" without erlc in your path, provided that you told "configure"
where your erlc is.
Also attached is a small patch that I believe corrects "make install"
output to correspond more with where yaws.conf actually is installed,
although I haven't verified that $(ETCDIR) is not always equivalent