Remove unused constant.

change determination of final state for timeout.

declare queues for workers explicitly.

handle non-existence during timeout If an ontology version can't be found it probably does not exist, so we can't timeout on it.

rely on sidekiqs scheduling mechanism Instead of second-guessing sidekiq by checking the timeout again (and considering that sidekiq basically checks it the same way we were doing it), we rely on sidekiqs scheduling mechanism.

adjust timeout worker for rescheduling Utilize Sidekiqs scheduling capability. Also allow rescheduling if timeout was not yet reached.

add convenience methods for timeout-clock.

add TimeoutWorker Tests should be green. Also StateUpdater methods are not protected anymore (we should be able to manipulate the state from outside of the model).