<oo-admin-yum-validator> Bug 1034623, handle subscription option properly
https://bugzilla.redhat.com/show_bug.cgi?id=1034623

The first stage of the version/subscription detection wasn't properly
honoring command-line-specified subscription settings.
Merge pull request #216 from dobbymoodge/BZ1034623

<oo-admin-yum-validator> Bug 1034623, handle subscription option properly