[conformal/btcutil] fc6f0d: Add Amount type to represent a monetary value.

[Josh Rickmar]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcutil
  Commit: fc6f0dee54e6ee599508e31d36f554ab208cb2b3
      
https://github.com/conformal/btcutil/commit/fc6f0dee54e6ee599508e31d36f554ab208cb2b3
  Author: Josh Rickmar <jr...@conformal.com>
  Date:   2014-04-11 (Fri, 11 Apr 2014)

  Changed paths:
    A amount.go
    A amount_test.go
    M test_coverage.txt

  Log Message:
  -----------
  Add Amount type to represent a monetary value.

ok @davecgh