[Merge] ~slyon/network-manager:netplan-integration into network-manager:ubuntu/master

[Danilo Egea Gondolfo]

I left an inline comment about some code we probably want to remove from the #if #endif block.
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https://code.launchpad.net/~slyon/network-manager/+git/network-manager/+merge/423735
Your team Network-manager is requested to review the proposed merge of ~slyon/network-manager:netplan-integration into network-manager:ubuntu/master.