specify TTL on removeOnComplete

[colthreepv]

To keep track of successful jobs (their payloads), it could be useful to keep the job alive for a predetermined time.

This can be accomplished very easily specifying a TTL in the REDIS hash containing job informations.

The API could be:

queue.create( ... ).removeOnComplete( 3600 * 24 ).save()

In such way the job informations would be available for 24 hours prior to automatic removal by REDIS
Do you think it's a valid use-case?

[idris]

I tried to take a shot at this PR, but it's more complicated than I expected because job.remove removes it from a bunch of indexes and lists, so it's not as simple as just calling EXPIRE on the job's key.

😢

[allenluce]

I kept the API but overloaded it onto the existing job TTL mechanism.