[JIRA] (OVIRT-2360) Enable setting a default version for the OST manual job and set 4.2 as the default.

Enable setting a default version for the OST manual job and set 4.2 as the default. ----------------------------------------------------------------------------------- Key: OVIRT-2360 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-2360 Project: oVirt - virtualization made easy Issue Type: Improvement Components: OST Manual job Reporter: Barak Korren Assignee: Ehud Yonasi Priority: High We need to ensure the default oVirt version can be configure when using the OST mnaul job template. Once we do that we need to also configure the default to be 4.2 currently.