[Feature Request] support for background processing

[morgoth]

Since Paperclip now requires Rails >= 4.2 it means that it has access to ActiveJob.

Will you consider integration with AJ for processing files in the background?
Currently it's possible using https://github.com/jrgifford/delayed_paperclip but it has lot of hacks, so it's not easy to maintain it.

Not sure how big effort would it be to get it into paperclip, but the first question is - is this something that you would like to have or not?

[andreiglingeanu]

@morgoth +1!

[tute]

@morgoth this is a great idea. What would it take to make paperclip ActiveJob aware?

[morgoth]

@tute I created simple Proof of Concept in #2261 - we can move discussion there. I would like to get your feedback.

[tute]

Closing in favor of PR. Thanks!