Task #9607: fixed some typo's. made sure we choose sane defaults in case incorrect processing keys are specified. Added check on startup for already scheduled pipelines if they can be handed to slurm

Task #9192: Run pipelines with lower priority (than inspection plots etc), prevent cancellation of docker pull/tag jobs, propagate runPipeline exit code

Task #9555: Query RADB for predecessors/successors to manage the pipeline dependencies, instead of letting SLURM handle the dependencies. The latter is prone to inconsistencies and trigger-happy behaviour.

Task #8887: Allocate 20 cores/node/job, cancel abort-trigger job as well on received status changes, prevent dependencies on subjobs

Task #8887: Removed dependency on pipelineAborted.sh, allowing pipelines to go to aborted even if the docker image is not available