DNS support for Bootstrapper nodes

[daviddias]

Following: multiformats/js-multiaddr#37

Here is the list of remaining tasks:

• Migrate repo/.config to have:
  • libp2p key to isolate all libp2p config specifically
  • addrs to listen (listen)
  • addrs to announce (broadcast)
  • addrs to not announce (filter)
  • Add these distinctions to the peerInfo object too
• Test that a js-ipfs node can dial do a node behind DNS
  • Deploy a node using the dokku thing
  • Test it out
  • Ensure that Identify sends the right addrs

While speccing out the relay I noticed we don't really have a pressing need for specifying addresses not to announce. I'm probably going to leave it out in go-ipfs.

Add these distinctions to the peerInfo object too

What are they needed for in PeerInfo?

[daviddias]

@lgierth re: PeerInfo

This is js-ipfs specific :)

[daviddias]

Almost all done, last mile is #740

[victorb]

addrs to listen (listen)
addrs to announce (broadcast)

How can I set this up? Tried finding how, but the config format is not the same as what go-ipfs is doing with Announce and NoAnnounce