Multi-level Fn::GetAtt JSON-to-YAML conversion broken

[smphhh]

With the following test.json

{
    "AWSTemplateFormatVersion": "2010-09-09",
    "Resources": {
        "TestBucket": {
            "Type": "AWS::S3::Bucket",
            "Properties": {
                "BucketName": {
                    "Fn::GetAtt": [
                        "TestDatabase",
                        "Endpoint",
                        "Address"
                    ]
                }
            }
        }
    }
}

running

cfn-flip test.json

yields

AWSTemplateFormatVersion: '2010-09-09'
Resources:
  TestBucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: !GetAtt 'TestDatabase.Endpoint'

i.e. the ".Address" part is lost. This was working in 0.2.1.

[sanyer]

Caused by #18