It didn't feel right to have a "DHCPClient" in a "Servers" directory.
Rename this to Services to better reflect the type of programs we'll
be putting in there.
This allows us to start WebServer on a port other than 8000, or multiple
instances of it at the same time :^)
Also print out what port was being used in the end.
This server listens on port 8000 and serves HTML files from /www.
It's very simple and quite naive, but I think we can start here and
build our way to something pretty neat.
Work towards #792.
