Do not take an advisory lock on the process in the notifier in the production environment

[bensheldon]

In the production environment there are frequently database connection problems. The advisory lock is great in development when you are starting and stopping the dev server a lot so you get fast feedback, but in production it's less often.

There should be a configuration option to set whether an advisory lock is taken on the process record in the notifier reactor. In development it should default to true and in production default to false.

Relates to:

• Unhandled GoodJob::AdvisoryLockable::RecordAlreadyAdvisoryLockedError errors #1446