Schedule periodic jobs

[ejulio]

We want to able to schedule periodic jobs through shub (scrapinghub/shub#220).
For that, we'll need to add this feature here as well.

Probably, it'll be something related to jobs (https://github.com/scrapinghub/python-scrapinghub/blob/master/scrapinghub/client/jobs.py) or, maybe, a new PeriodicJobs.

[vshlapakov]

Let's keep the issue open as a reminder, but it won't happen soon - we don't yet have a stable API for periodic jobs that we could use, which means that it's too early to discuss/plan any changes in the API clients.

[Prasad484]

Hi @vshlapakov,

I have raised an enhancement/feature request/ help wanted query: #176

It is regarding Periodic Job Scheduling via Jobs API which seems to be quite stable as we speak if you can please have a look.

cc: @Gallaecio

Thanks.