Also, change local mode to use absolute "file://" references across
sites (makes "doc-site.js" plus "doc-site.css" work locally) and
add "index.html" to paths a needed, but add a `-r` relative mode for
the old behavior.
The "plt-new-services" package defines the "meta/new-web"
collection, with the idea that it will be merged into
"plt-services" and later replace "meta/web".