Note: the dht-specific part of the bootstrap function
was only there to make sure to call `dht.Update(ctx, npeer)`.
This already happens on all new connections made by the
network, as the dht is signed up for notifications.

validate doesn't work. the peer's public key is not present in the
peerstore.

this functionality is here as an optimization

thanks @mappum

remove .go-ipfs

@jbenet when returning values for records, when would it make sense to
also return providers for the records?

vendor: goamz/aws and goamz/s3

This is an unhandled case. Right now, we close the stream without
reading. Should clients be able to satisfy routing requests?

@jbenet @whyrusleeping

fix(corerouting): connect to routing servers when setting up GCR client

doc(corerouting) add TODO to move stuff to routing bootstrap