Moto

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* EC2 group-id filter
* EC2 list support for filters

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* Add ELBv2
* IAM user policies
* RDS snapshots
* IAM policy versions

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* Add Cloudformation exports
* Add ECR
* IAM policy versions

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BACKWARDS INCOMPATIBLE
* The normal mock_<service> decorators will no longer work with boto. It is suggested that you upgrade to boto3 or use the standalone-server mode. If you would still like to use boto, you must use the mock_<service>_deprecated decorators which will be removed in a future release.
* The mock_s3bucket_path decorator is now deprecated. Use the mock_s3 decorator instead.
* Drop support for Python 2.6
* Redshift server defaults to returning XML instead of JSON

Added features
* Reset API: a reset API has been added to flush all of the current data ex: `requests.post("http://motoapi.amazonaws.com/moto-api/reset")`
* A dashboard is now available with moto_server at http://localhost:5000/moto-api/

New Services:
* DataBrew:
* create_recipe()
* get_recipe()
* list_recipes()

* Pinpoint:
* create_app()
* delete_app()
* delete_event_stream()
* get_app()
* get_application_settings()
* get_apps()
* get_event_stream()
* list_tags_for_resource()
* put_event_stream()
* tag_resource()
* untag_resource()
* update_application_settings()

New Services:
* Appsync:
* create_api_key()
* create_graphql_api()
* delete_api_key()
* delete_graphql_api()
* get_graphql_api()
* get_schema_creation_status()
* get_type()
* list_api_keys()
* list_graphql_apis()
* list_tags_for_resource()
* start_schema_creation()
* tag_resource()
* untag_resource()
* update_api_key()
* update_graphql_api()

Miscellaneous:
* AWSLambda:invoke() now throws an error when trying to return an oversized payload (>6MB)
* EC2:describe_instances() now supports filtering by `dns-name`
* EC2:describe_managed_prefix_lists() now supports filtering by tags
* SQS:delete_message_batch() now correctly deals with invalid receipt handles