Merge branch 'master' into remove-annotations

Docker/Dockerfile

debug/everybeam/Dockerfile

debug/everybeam/build.sh

debug/everybeam/fails.py

debug/everybeam/run.sh

debug/scan_ms/Dockerfile

debug/scan_ms/build.sh

debug/scan_ms/entry.sh

debug/scan_ms/fails.py

debug/scan_ms/run.sh

debug/scan_ms/succeeds.py

docs/source/parset.rst

examples/rapthor.parset

rapthor/lib/parset.py

rapthor/lib/sector.py

rapthor/operations/calibrate.py

rapthor/operations/image.py

rapthor/operations/mosaic.py

rapthor/operations/predict.py

rapthor/pipeline/parsets/calibrate_pipeline.cwl