Merge tag 'RELEASE2' into develop

src/python/OBis/obis/dm/command_result.py

src/python/OBis/obis/dm/commands/__init__.py

src/python/OBis/obis/dm/commands/addref.py

src/python/OBis/obis/dm/commands/clone.py

src/python/OBis/obis/dm/commands/openbis_command.py

src/python/OBis/obis/dm/commands/openbis_sync.py

src/python/OBis/obis/dm/data_mgmt.py

src/python/OBis/obis/dm/git.py

src/python/OBis/obis/dm/utils.py

src/python/OBis/obis/scripts/cli.py

src/python/PyBis/pybis/data_set.py

src/python/PyBis/pybis/pybis.py

src/python/PyBis/pybis/utils.py

src/python/PyBis/setup.py