Call formatError when passed in options to runQuery, fixes #1439

[tgriesser]

At first I thought my code was so good that there were no errors. On closer inspection, I found the formatError option was being ignored if it's added in the options outside of the ApolloServer constructor (in runHttpQuery), so my logging wasn't being called. I'm not specifying in the constructor because I need to access the request object and this isn't available in the constructor.

This is the cleanest solution I found without changing too much about how the current extension ordering works.

• Update CHANGELOG.md with your change (include reference to issue & this PR)
• Make sure all of the significant new logic is covered by tests
• Rebase your changes on master so that they can be merged easily
• Make sure all tests and linter rules pass

[tgriesser]

Nevermind, based on other tests this needs a different approach.