CHANGELOG

• Updated graphql-core requirement to 3.2.0.
• Bumped starlette support to 0.18.
• Drop Python 3.6 support.
• Added basic support for OPTIONS HTTP request.
• Refactor ariadne.asgi.GraphQL to make it easier to customize JSON response.
• Added trace_default_resolver to ApolloTracingExtension that enables tracing for default resolvers.
• Fixed make_federated_schema error when custom directive in schema has description.
• Moved set_default_enum_values_on_schema, validate_schema_enum_values and type_implements_interface to public API.