* Implementing retries on failed user updates when finishing a quest. fixes#8035
* Refactoring mongo db retries to use the same as code path as original call and moving retries to count based over time based.
* Adding tests for retry logic and updating retries to happen recursively
* Moving callbacks to promises and other tweaks according to pr.
* Chaging mongoose promise to use .catch() functionality
* If all retries fail, the system will now throw an error instead of returning an error message.
Travis
cd545e08d5