Merge branch 'master' of sissource.ethz.ch:sispub/pybis into develop

...ython/OBis/integration_tests/12_metadata_only_1_commit.sh

...s/integration_tests/12_metadata_only_2_metadata_commit.sh

...n/OBis/integration_tests/13_sync_1_git_commit_and_sync.sh

src/python/OBis/integration_tests/13_sync_2_only_sync.sh

src/python/OBis/integration_tests/integration_tests.py

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

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

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

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

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

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

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

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

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

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

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

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

src/python/OBis/obis/dm/git-annex-attributes

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

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