Renamed any *_APPLICATION as *_SERVICE
mainly because those components
such as WSF_APPLICATION, renamed as WSF_SERVICE
are not always the main application entry, and "service" describe them better
Minor implementation change in WSF_REQUEST
Cosmetics
Quite useful when launching using port=0 to use a random free port.
This is great for testing, this way we can run many tests in the same time without any port blocking.