* new command `attach' to control a backgrounded lftp.
* automatically fill torrent:ipv6 setting.
* slightly improved torrent status display.
* fixed reconnect interval (it was sometimes uninitialized).
* several fixes for the case of cmd:parallel>1 (Fernando Gutierrez).
Example for "attach" command:
$ lftp ftp.yar.ru
lftp ftp.yar.ru:~> sleep 1000 &
[0] sleep 1000 &
Sleep time left: 16m40s
lftp ftp.yar.ru:~> exit
[26084] Moving to background to complete transfers...
$ lftp
lftp :~> attach
[26084] Attached to terminal.
lftp ftp.yar.ru:~> jobs
[0] sleep 1000
Sleep time left: 15m24s
lftp ftp.yar.ru:~> kill 0
lftp ftp.yar.ru:~> exit
[26084] Exiting and detaching from the terminal.
lftp :~> exit
$
--
Alexander.
