to consult cfg.logxfovr, because it gets done once in logging.c.
askappend() is now called only when a question _really_ needs to be
asked of the user. Also in this checkin, cleanup_exit() in console.c
no longer consults cfg.protocol to decide whether to save the random
seed, because random_save_seed() can make that decision for itself
and do it better.
[originally from svn r2552]
doesn't yet use the SSH agent, no way to specify arbitrary config
options, no manpage yet, couple of other fiddly things need doing,
but it makes SSH connections and doesn't fall over horribly so I say
it's a good start. Now to run it under valgrind...
[originally from svn r2165]
