* hkp/requests.go, openpgp/io.go, openpgp/pks.go, openpgp/recon.go,
  openpgp/worker.go:
  - Fix HashQuery request, create response chan.
  - Fix SKS recon peer to handle new/updated keys appropriately.
  - Do not error out on fetchKeys for invalid keys. Instead return
    ReadKeyResult and let the caller decide how to deal.
Opening 1.0~b1 development and a bottle of
Maker's. SKS reconciliation now working in
the small. Cheers!