WIP: adapt the "fix missing feed update schedules" to Sidekiq.
WIP: adapt the "fix missing feed update schedules" to Sidekiq.

The old Resque API can no longer be used now that we're migrating to Sidekiq, of course.

jmwenda/feedbunch,jmwenda/feedbunch,amatriain/feedbunch,amatriain/feedbunch,jmwenda/feedbunch,amatriain/feedbunch,amatriain/feedbunch