Merge tag '0.2.1' into develop

obis/src/python/CHANGELOG.md

obis/src/python/README.md

obis/src/python/obis/__init__.py

obis/src/python/setup.py

openbis/build.gradle

...api/v3/executor/dataset/DataSetAuthorizationExecutor.java

...pi/v3/executor/dataset/IDataSetAuthorizationExecutor.java

...rver/asapi/v3/executor/dataset/UpdateDataSetExecutor.java

.../executor/experiment/ExperimentAuthorizationExecutor.java

...executor/experiment/IExperimentAuthorizationExecutor.java

...sapi/v3/executor/experiment/UpdateExperimentExecutor.java

...pi/v3/executor/project/IProjectAuthorizationExecutor.java

...api/v3/executor/project/ProjectAuthorizationExecutor.java

...rver/asapi/v3/executor/project/UpdateProjectExecutor.java

...sapi/v3/executor/sample/ISampleAuthorizationExecutor.java

...asapi/v3/executor/sample/SampleAuthorizationExecutor.java

...server/asapi/v3/executor/sample/UpdateSampleExecutor.java

.../asapi/v3/executor/space/ISpaceAuthorizationExecutor.java

...r/asapi/v3/executor/space/SpaceAuthorizationExecutor.java

...c/server/asapi/v3/executor/space/UpdateSpaceExecutor.java