chore(package): update sinon to version 2.0.0
chore(package): update sinon to version 2.0.0

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wincent/express-graphql,wincent/express-graphql,graphql/express-graphql,jamiehodge/express-graphql,graphql/express-graphql,jamiehodge/express-graphql,jamiehodge/express-graphql,wincent/express-graphql,graphql/express-graphql