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`.
TEST_LAMBDA_CUSTOM_RUNTIME, get_content=True)
        testutil.create_lambda_function(
            func_name=TEST_LAMBDA_NAME_CUSTOM_RUNTIME,
            zip_file=zip_file,
            handler='function.handler',
            runtime=LAMBDA_RUNTIME_CUSTOM_RUNTIME
        )
        result = self.lambda_client.invoke(
            FunctionName=TEST_LAMBDA_NAME_CUSTOM_RUNTIME,
            Payload=b'{"text":"bar with \'quotes\\""}')
        result_data = result['Payload'].read()
        self.assertEqual(result['StatusCode'], 200)
        self.assertEqual(
            to_str(result_data).strip(),
            """Echoing request: '{"text": "bar with \'quotes\\""}'""")
        
        expected = ['.*Custom Runtime Lambda handler executing.']
        self.check_lambda_logs(
            TEST_LAMBDA_NAME_CUSTOM_RUNTIME, expected_lines=expected)
        
        testutil.delete_lambda_function(TEST_LAMBDA_NAME_CUSTOM_RUNTIME)
class TestDotNetCoreRuntimes(LambdaTestBase):
    @classmethod
    def setUpClass(cls):
        cls.lambda_client = aws_stack.connect_to_service('lambda')
        
        zip_file = TEST_LAMBDA_DOTNETCORE2
        cls.zip_file_content = None
        with open(zip_file, 'rb') as file_obj:
            cls.zip_file_content = file_obj.read()