Real SOAP interface should be via HTTPS
Establish an API client and call a method on the test endpoint.
Set the credentials from environment variables.
This will allow them to be added to the .travis.yml file in an encrypted format.
Fix KeyError bug in tests.
Add test case to validate Decimal balance.
Fix AttributeError with ContactIdentifierList response.
Expand domain_update to accept name server delegation arguments.
Fix domain_list method to return an empty list when there are no domains
Add domain_price_list method