timhall/Excel-TDD — pull request #4 by timhall (2014-09-29 17:00:19+00:00)
Title: Fix Mac compatibility

`CDec` is not supported on Mac (seems the entire `Decimal` type is missing). Comparing two doubles is difficult anyways and should be more explicitly checked with `.ToBeCloseTo`, but added checking to 22 decimal places (approximates `CDec`).