Issue #586

Please see https://github.com/WindowsAzure/azure-sdk-tools-xplat/issues/586 for details on the original issue.

Adds a new --no-ssh-password option. I'm not entirely happy with the design of the command as I believe the default should match portal (when you provide an SSH certificate, "passwordless" should really be the default)

This work is dependent on a Node SDK service management fix which is contained in pull request https://github.com/WindowsAzure/azure-sdk-for-node/pull/829