Bug 27783: Rename queues and adjust currently defined jobs

Bug 27783: Rename queues and adjust currently defined jobs

This patch renames the queues so the default is the **real-time** one, and
the other (*long_tasks*) is kept for **long running** tasks.

All current *batch* tasks are explicitly assigned to the **long_tasks**
queue as well.

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>