Add instructions for how to generate a dummy SSL certificate for temporary use on the web.
Add instructions for how to generate a dummy SSL certificate for
temporary use on the web.

Also, moved setup-db to the end of the file, since the web interface
should be running before we attempt it.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome