FIXES in 2.4.2-BETA-10

Fixed the output of "site help" command to return the email address listed
in the "email" entry from the ftpaccess file (if available). Bug reported
by Andras Salamon <andras@is.co.za>. 

Fixed some configuration problems for Linux. Based on a patch supplied by
Jos Vos <jos@xos.nl>.

Added back an idle timeout routine that appears to compile cleanly on
all the systems I test on. Patch supplied by Vidiot <brown@ftms.COM>. 

Modified support for virtual domains as suggested by Marc G. Fournier 
<scrappy@ki.net>. Modified the VIRTUAL.FTP.SUPPPORT support file and the
man pages to reflect this change.

Added a number of small changes suggested by a patch supplied by 
Marc G. Fournier <scrappy@ki.net> for FreeBSD.

Made some changes for AIX that I can't verify since I don't have AIX.
Patches suggested by information from Nik Conwell <nik@acs.bu.edu>.
