[btcsuite/btcchain] 3f177c: Update btcscript import paths to new location.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/btcsuite/btcchain
  Commit: 3f177c98955746df6b8f80dd1ed3592116f28a91
      
https://github.com/btcsuite/btcchain/commit/3f177c98955746df6b8f80dd1ed3592116f28a91
  Author: Dave Collins <da...@conformal.com>
  Date:   2015-01-30 (Fri, 30 Jan 2015)

  Changed paths:
    M checkpoints.go
    M scriptval.go
    M validate.go

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