Account migrator tool (aka Dukgo is dying)

[chrisballinger]

Dukgo is dying: https://twitter.com/cfarivar/status/852193164207063040

• [X] For Dukgo only: Remove Dukgo from bundled server list
• [X] For Dukgo only: Show dialog explaining that server will be shut down
• [X] Show screen to select new server with 3 1 defaults, "show more", and custom.
• [x] Create new account on server, then ask user if they wnat to send all their contacts a message with their new account details.
• [X] Link new account and old account in db (?)
• [X] Migrate key trust status from old contacts to new account
• [X] Investigate vCard forwarding address (make sure to fetch vCard more aggressively because right now it only fetches on avatar change)
• [X] Spam previous contacts with new JID & keys.
• [X] Group-add old contacts with new account
• [X] Archive old buddy threads (requires #741)

[chrisballinger]

Progress so far:

[chrisballinger]

@N-Pex See bug below:

[N-Pex]

@chrisballinger I was not able to reproduce this, but did I change that might fix it. Could you please test with the latest PR?