Merge from vendor branch TNF:

Merge from vendor branch TNF:
Initial import of fsh-1.0, "fast remote command execution". The author
states that the motivation for this program was to speed up cvs work,
but it works just as well with "rsync" and other programs that use ssh
for the transport. This is a set of python scripts: "fsh" uses ssh,
(or optionally rsh or lsh) to start and set up a connection to "fshd"
on the remote host, also includes "fcp", and docs in "info" format.