Remove the Port directive. In it's place, the Listen directive

Remove the Port directive.  In it's place, the Listen directive
is now a required directive, which tells Apache what port to
listen on.  The ServerName directive has also been extended
to accept an optional port.  If the port is specified to the
ServerName, the server will report that port whenever it
reports the port that it is listening on.  This change was
made to ease configuration errors that stem from having a Port
directive, and a Listen directive.  In that situation, the server
would only listen to the port specified by the Listen command,
which caused a lot of confusion to users.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@91293 13f79535-47bb-0310-9956-ffa450edef68