With today's update this `serverless.yml` no longer deploys:

```yaml
service: "localtest"

provider:
  name: "aws"
  runtime: "nodejs10.x"

functions:
  hello:
    handler: "handler.hello"
    events:
    - http:
        path: "/"
        method: "get"
        integration: "lambda-proxy"

plugins:
  - "serverless-localstack"

custom:
  localstack:
    stages:
      - "local"
```

The error on the localstack end seems to be that it cannot create `ApiGateway::RestApi` type resources:
```
2019-10-24T09:10:41:DEBUG:localstack.utils.cloudformation.template_deployer: Deploying resource type "ApiGateway::RestApi" id "ApiGatewayRestApi"
2019-10-24T09:10:41:DEBUG:localstack.utils.cloudformation.template_deployer: Request for creating resource type "ApiGateway::RestApi": create_rest_api {'name': 'local-localtest'}
2019-10-24T09:10:41:ERROR:localstack.services.cloudformation.cloudformation_starter: Unable to parse and create resource "ApiGatewayRestApi": argument of type 'NoneType' is not iterable
```

This is followed by repeated `TypeError` and then `KeyError`.
response = self.lambda_client.create_function(
            FunctionName=lambda_name, Handler='handler.handler',
            Runtime=lambda_api.LAMBDA_RUNTIME_PYTHON27, Role='r1',
            Code={
                'S3Bucket': bucket_name,
                'S3Key': bucket_key
            },
            Publish=True
        )
        self.assertIn('Version', response)
        
        data_before = b'{"foo": "bar with \'quotes\\""}'
        result = self.lambda_client.invoke(
            FunctionName=lambda_name,
            Payload=data_before,
            Qualifier=response['Version']
        )
        data_after = json.loads(result['Payload'].read())
        self.assertEqual(json.loads(to_str(data_before)), data_after['event'])
        context = data_after['context']
        self.assertEqual(response['Version'], context['function_version'])
        self.assertEqual(lambda_name, context['function_name'])
        
        expected = ['Lambda log message - print function']
        if use_docker():
            
            
            expected.append('.*Lambda log message - logging module')
        self.check_lambda_logs(lambda_name, expected_lines=expected)