[conformal/btcd] ba5e45: Finish getpeerinfo RPC syncnode field.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcd
  Commit: ba5e457c38bfe7fe7eff7898a99b518a88467683
      
https://github.com/conformal/btcd/commit/ba5e457c38bfe7fe7eff7898a99b518a88467683
  Author: Dave Collins <da...@conformal.com>
  Date:   2014-02-03 (Mon, 03 Feb 2014)

  Changed paths:
    M blockmanager.go
    M server.go

  Log Message:
  -----------
  Finish getpeerinfo RPC syncnode field.

This commit adds code to get the current sync peer from the block manager
for use in the getpeerinfo RPC.