Fix up logging barclamp to work with Crowbar 2.0
Merge pull request #65 from VictorLowther/pull-req-master-3ad87c72b743e6a5474ec33caf2b57249b136059

https://github.com/crowbar/barclamp-logging/pull/65

Merged by devtool for cloudedge
Zap all .old files
Update logging recipe to log over IPv6.
Unwind preference of IP6 here.