[btcsuite/btcd] 3b5bb9: btcjson: Add preciousblock

[David Hill]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcd
  Commit: 3b5bb9fd43eaab2dc902c47b4900b8161b77330a
      
https://github.com/btcsuite/btcd/commit/3b5bb9fd43eaab2dc902c47b4900b8161b77330a
  Author: David Hill <dh...@mindcry.org>
  Date:   2016-10-19 (Wed, 19 Oct 2016)

  Changed paths:
    M btcjson/chainsvrcmds.go
    M btcjson/chainsvrcmds_test.go
    M rpcserver.go

  Log Message:
  -----------
  btcjson: Add preciousblock