Some minor changes:
* Change how we get the root key over to boss during initial installation. Instead of breaking out and having the user do it by hand, we have a default keypair in the repo that is installed long enough to allow boss to ssh over to ops and install the newly generated keypair. The keypair is in the repo cause it won't ever be used anyplace else. Just to be safe, I prefix it with a from="boss.emulab.net" option when ops-install sticks it into root's authkeys file. * Fix a couple of bugs in the root key ssh. @ needs to be escaped in perl, and must use BatchMode=yes option or else the check to see of the root key was copied just hangs! * Add initialization of mysql user and group since the pkg does not do that (the port does though).