• Update babel-relay-plugin to use graphql@0.8.2, which supports the latest revision of the GraphQL specification.
• Fix an issue with custom scalar field arguments not printing correctly.
• Promoted RelayGraphQLMutation to public API.
• Added rollback method to RelayGraphQLMutation.
• Added initial preparatory changes for moving to the new Relay API methods in a future release (eg. BabelPluginGraphQL).
• Avoid unnecessary un-ready updates.
• Add graphiqlPrinter argument to the RelayNetworkDebug constructor that can be used to print a link to view the request in GraphiQL.
• Fix problem using "node" as a key in a mutation response payload.