Seed Sync Bug - "Remote" settings request

[Koba42Corp]

Issue:
When using dignode remote sync seed, there may be a circumstance where the config has not yet recorded a remote IP address for the dig server.

Expected behavior:
As a user I would expect to be promted to enter the dig server IP if it is not present when issueing the dignode remote sync seed command.

Current Behavior:
As a user I ran dignode remote sync seed and received error. Manually editing the dig.config .json with the appropriate server IP seems to bypass the issue. This requires the user to be aware of this issue to address at the moment of use.

[MichaelTaylor3d]

I identified this earlier but forgot to write it down. Thank you for reminding me. I will patch.