Add ServerPath directive for use with non IP-based virtual hosts and

compatibility with old HTTP/1.0 clients.

Cause Apache to reject (400 error response) requests that are HTTP/1.1
or later and come without a hostname.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@76558 13f79535-47bb-0310-9956-ffa450edef68