Updates to oo-diagnostics.
Mainly, added tests for 3-way consistency between conf, node hosts, and districts.
Added a pass for some enterprise RPMs that didn't get the right dist.
Amended top instructions to describe output levels.
Place DNS test first to enable bailing out early.
Run oo-accept-systems if present.
Merge pull request #1106 from sosiouxme/diagnostics

Merged by openshift-bot