[btcsuite/btcutil] 9e2037: Update btcec import paths to new location.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcutil
  Commit: 9e2037d6db23d7941cb8560746fca0a8dc5fc7ed
      
https://github.com/btcsuite/btcutil/commit/9e2037d6db23d7941cb8560746fca0a8dc5fc7ed
  Author: Dave Collins <da...@conformal.com>
  Date:   2015-01-16 (Fri, 16 Jan 2015)

  Changed paths:
    M address.go
    M hdkeychain/extendedkey.go
    M internal_test.go
    M wif.go
    M wif_test.go

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