Alex Kavanagh d8199f07bb Fix alphanumeric comparisons for openstack and ubuntu releases
- sync charmhelpers with fix-alpha helpers
- fix up code where the alpha comparisons are done

Change-Id: If253c8a18886630fcc7de4cfc2a91a15c2563eb5
Related-Bug: #1659575
2017-04-28 14:02:41 +01:00
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