Converted send_dir() to ap_proxy_send_dir_filter() in proxy_ftp.c.

Fixed up the header files
PR:
Obtained from:
Submitted by:
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88739 13f79535-47bb-0310-9956-ffa450edef68