1.1.0 - Tidy up code, add more bank accounts from updated document
1.0.0 - First public release
0.9.0 - Add new ranges from updated IRD document
        Use new RSpec syntax
        Accept a string of a full bank account number rather than a collection of parts
        Add class method to validate without instantiating
        Rename gem
0.0.3 - Bugfix
0.0.2 - Never happened
0.0.1 - Initial Release