[conformal/btcwallet] 69dbad: Use btcchain constant for coinbase maturity.

[Josh Rickmar]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcwallet
  Commit: 69dbad5999c1f710da8ce6ce3dad9670d18a2d27
      
https://github.com/conformal/btcwallet/commit/69dbad5999c1f710da8ce6ce3dad9670d18a2d27
  Author: Josh Rickmar <jr...@conformal.com>
  Date:   2014-04-14 (Mon, 14 Apr 2014)

  Changed paths:
    M createtx.go

  Log Message:
  -----------
  Use btcchain constant for coinbase maturity.