chore(package): update babel-runtime to version 6.20.0
chore(package): update babel-runtime to version 6.20.0

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