Add a configuration option for TCP keepalives (SO_KEEPALIVE), default off.

[u/mdw/putty] / MODULE

Module: putty
Author: Simon Tatham <anakin@pobox.com>
Description: PuTTY is a free (MIT-licensed) Win32 implementation of Telnet and SSH, with a comprehensive xterm/Linux/vt220 terminal emulator attached.
Homepage: http://www.chiark.greenend.org.uk/~sgtatham/putty/
Release: http://www.chiark.greenend.org.uk/~sgtatham/putty/