Merge branch 'TMSS-272' into 'master'

Docker/lofar-ci/Dockerfile_ci_sas

LCS/PyCommon/json_utils.py

LCS/PyCommon/test/t_json_utils.py

QA/QA_Service/test/t_qa_service.py

SAS/TMSS/client/bin/CMakeLists.txt

SAS/TMSS/client/bin/tmss_populate

SAS/TMSS/client/lib/CMakeLists.txt

SAS/TMSS/client/lib/populate.py

SAS/TMSS/client/lib/tmss_http_rest_client.py

SAS/TMSS/src/remakemigrations.py

SAS/TMSS/src/templates/josdejong_jsoneditor_widget.html

SAS/TMSS/src/tmss/settings.py

SAS/TMSS/src/tmss/tmssapp/CMakeLists.txt

SAS/TMSS/src/tmss/tmssapp/adapters/parset.py

SAS/TMSS/src/tmss/tmssapp/adapters/sip.py

SAS/TMSS/src/tmss/tmssapp/migrations/0001_initial.py

SAS/TMSS/src/tmss/tmssapp/migrations/0002_populate.py

SAS/TMSS/src/tmss/tmssapp/models/scheduling.py

SAS/TMSS/src/tmss/tmssapp/models/specification.py

SAS/TMSS/src/tmss/tmssapp/populate.py