Instances of the 'HTTP::Daemon' class are HTTP/1.1 servers that listen on a
socket for incoming requests. The 'HTTP::Daemon' is a subclass of
'IO::Socket::INET', so you can perform socket operations directly on it
too.

The accept() method will return when a connection from a client is
available. The returned value will be an 'HTTP::Daemon::ClientConn' object
which is another 'IO::Socket::INET' subclass. Calling the get_request()
method on this object will read data from the client and return an
'HTTP::Request' object. The ClientConn object also provide methods to send
back various responses.

This HTTP daemon does not fork(2) for you. Your application, i.e. the user
of the 'HTTP::Daemon' is responsible for forking if that is desirable. Also
note that the user is responsible for generating responses that conform to
the HTTP/1.1 protocol.