This removes all BUFF's from the HTTP proxy. This code is relatively

ugly, but it does proxy pages.  This even fixes the content-type bug
that I introduced yesterday sometime.  As soon as BUFF is removed from
the FTP proxy, the buff.c and buff.h files need to go away.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86988 13f79535-47bb-0310-9956-ffa450edef68