- Fixed hmac signature validation for params with delimiters (`&`, `=` or `%`)
2.1.2
- Fixed an issue with unicode strings in params passed to validate_hmac - Added shop domain verification when creating a session
2.1.1
- Added Checkout resource - Updated to pyactiveresource v2.1.1 which includes a test-related bugfix - Changed OAuth validation from MD5 to HMAC-SHA256
2.1.0
- Added python 3 compatibility - Fixed setting the format attribute on carrier and fulfillment services - Add a specific exception for signature validation failures