chore(package): update coveralls to version 2.11.16 (#707)
chore(package): update coveralls to version 2.11.16 (#707)

https://greenkeeper.io/
graphql/graphql-js,jjergus/graphql-js,baer/graphql-js,gabelevi/graphql-js,jjergus/graphql-js,graphql/graphql-js,enaqx/graphql-js,gabelevi/graphql-js,enaqx/graphql-js,graphql/graphql-js,enaqx/graphql-js,baer/graphql-js,tgriesser/graphql-js,tgriesser/graphql-js