[JIRA] (OVIRT-1687) Add some Fedora 27 slaves

Add some Fedora 27 slaves ------------------------- Key: OVIRT-1687 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-1687 Project: oVirt - virtualization made easy Issue Type: Improvement Components: oVirt Infra Reporter: Barak Korren Assignee: infra Labels: fedora, slaves Fedora 27 beta is out, so we need to start testing its use in the CI system. We need to add some Fedora 27 slaves. This probably depends on OVIRT-1686 for mirrors to be configured so that we can configure them on the slaves.