[JIRA] (OVIRT-520) Document infra user addition (probably automate)

Document infra user addition (probably automate) ------------------------------------------------ Key: OVIRT-520 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-520 Project: oVirt - virtualization made easy Issue Type: Bug Reporter: David Caro Estevez Assignee: infra Current steps: * send patch and get it merged * Import puppet classes from proxy * Add the new class to the production hostgroup * Add the password parameter with the hashed password