- Change global rate limit Move jobs to wait or groups when global rate limit
- Remove QueueSchedulerPro class. WorkerPro class should handle QueueSchedulerPro functionalities.
- groups: Group ids must be strings. Numbers are not allowed anymore.
- groups: In order to make the group getter consistent for all statuses we are changing the SET type for groups:active to ZSET. Also we rename the ZSET to groups:max as it represent groups that have maxed the concurrency.