Task #9522: Use 2 cores/process by default, to more evenly spread resources and prevent extreme load figures. Almost all pipelines have a step that requires 2 cores.

Task #9800: support for remote clusters in Hertfordshire and Juelich. changes in command construction and special handling of node setup.

Task #9764: Provide input filename differently to PyBDSM to allow it to derive a proper logfile location

Task #8415: Use docker-run-slurm.sh script, to contain resources and propagate kill signals in SLURM

Task #9678: Fix use of socket.recv in jobserver and lofarnode in case of closed connections and interrupts

Task #9678: Read POLLPRI data as well, and wait for stdout/stderr to signal partial close before calling communicate(), instead of waiting for the PID to exit