WIP Stanford playbook updates
Certs variables for rolling issues

* Updates to certs variables to support patches in flight from Stanford
* SEND UPSTREAM
Update roles to have correct supervisor log names

* Supervisor log names were being interpolated incorrectly, resulting in
  names like lmstderr.log, rather than lms-stderr.log. This fixes it.
* Also puts xqueue logs in the right place.
* SEND UPSTREAM