Merge pull request #652 from microsoft/dev

Dev

Merge pull request #649 from microsoft/dev

djoin blob fixed

Fix formatting of admin verification comment

Merge pull request #624 from microsoft/dev

Dev

Merge pull request #622 from microsoft/dev

Dev

Merge pull request #620 from microsoft/dev

Dev

Merge pull request #616 from microsoft/dev

added few options to support ZTP

Sync dev and master (#610)

Merge pull request #608 from microsoft/dev

Dev

Merge pull request #598 from microsoft/dev

network isolation fix