Get a web page from a host through http
http@ [ host [ page [ port ] ] ]
http@ connects to port on host, sends GET /page (with an extra CR) to host, and prints any data it receives, removing CR from the end of each line.
If port is not supplied, http@ uses port 80 (HTTP).
If page is not supplied, http@ sends GET / to host.
If host is not supplied, http@ connects to the local host.