[btcsuite/btcutil] b2c2b1: Update btcchain import paths to new location.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcutil
  Commit: b2c2b14526b5e29fd66bc94d6fb6cccce9cc6a6a
      
https://github.com/btcsuite/btcutil/commit/b2c2b14526b5e29fd66bc94d6fb6cccce9cc6a6a
  Author: Dave Collins <da...@conformal.com>
  Date:   2015-01-16 (Fri, 16 Jan 2015)

  Changed paths:
    M bloom/merkleblock.go

  Log Message:
  -----------
  Update btcchain import paths to new location.