Merge branch 'L2SS-1032_use_constants_in_tests' into 'master'

...tationcontrol/tangostationcontrol/clients/comms_client.py

tangostationcontrol/tangostationcontrol/common/constants.py

...ol/integration_test/default/client/test_tcp_replicator.py

...egration_test/default/devices/test_device_antennafield.py

...l/integration_test/default/devices/test_device_beamlet.py

...trol/integration_test/default/devices/test_device_boot.py

...tegration_test/default/devices/test_device_digitalbeam.py

...tegration_test/default/devices/test_device_observation.py

...n_test/default/devices/test_device_observation_control.py

...ntrol/integration_test/default/devices/test_device_sdp.py

...n_test/default/devices/test_device_temperature_manager.py

.../integration_test/default/devices/test_device_tilebeam.py

...rol/integration_test/default/devices/test_lofar_device.py

...ationcontrol/tangostationcontrol/test/beam/test_delays.py

...control/tangostationcontrol/test/common/test_baselines.py

...gostationcontrol/test/devices/test_antennafield_device.py

...l/tangostationcontrol/test/devices/test_beamlet_device.py

...ngostationcontrol/test/devices/test_digitalbeam_device.py

...trol/tangostationcontrol/test/devices/test_recv_device.py