Merge r241044 from trunk:

* Remove the base href tag from mod_proxy_ftp, as it breaks relative
  links for clients not using an Authorization header.

Submitted by: minfrin


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x@371629 13f79535-47bb-0310-9956-ffa450edef68