Merge branch 'backport_improve_post_0_5_2' into '0.5'

orangecontrib/tomwer/widgets/control/DataListOW.py

orangecontrib/tomwer/widgets/control/DataListenerOW.py

orangecontrib/tomwer/widgets/control/DataSelectorOW.py

orangecontrib/tomwer/widgets/control/DataTransfertOW.py

orangecontrib/tomwer/widgets/control/DataWatcherOW.py

orangecontrib/tomwer/widgets/control/FilterOW.py

orangecontrib/tomwer/widgets/control/NXTomomillOW.py

orangecontrib/tomwer/widgets/control/OldDataValidatorOW.py

orangecontrib/tomwer/widgets/control/TimerOW.py

...contrib/tomwer/widgets/reconstruction/DarkRefAndCopyOW.py

orangecontrib/tomwer/widgets/reconstruction/FtseriesOW.py

orangecontrib/tomwer/widgets/reconstruction/NabuOW.py

orangecontrib/tomwer/widgets/reconstruction/NabuVolumeOW.py

orangecontrib/tomwer/widgets/reconstruction/TofuOW.py

orangecontrib/tomwer/widgets/test/test_reconstruction.py

orangecontrib/tomwer/widgets/visualization/SampleMovedOW.py

tomwer/__init__.py

tomwer/__main__.py

tomwer/app/canvas_launcher/launcher.py

tomwer/core/log/__init__.py