Commit SSH node menu option, and support. Heavily based/borrowed from
Chad's tiptunnel stuff. Requires ssh-mime.pl in the current directory, to be installed as a browser helper application on the users machine. Copied Chad's instructions for the tiptunnel from the FAQ, and stuck it into ssh-mime.html as a help file (not really FAQ material). The intent of this of course is to make ssh into jailed nodes easier, but not having to know port numbers, or directly log into ops first, when the jails are using control network IPs in our private IP space (not routable from outside).