|Issue tags:||API clean-up|
This patch adds a new hook_cron_worker and implements it for aggregator. Observe that we do not lock this one unlike the normal cron, there is no need and it would go against the point. After this patch, you can actually use as many webfrontends you have to fetch feeds in parallel. Win. Needs system api documentation. I doubt it needs tests, the aggregator tests will deal with it.