ZnTrack 0.2.1

What's Changed

• Add coveralls by @PythonFZ in #163
• Fix creating Node directory on loading by @PythonFZ in #166
• Use znjson instead of built in serializer by @PythonFZ in #158
• Add isort by @PythonFZ in #164
• Update README.rst by @PythonFZ in #167
• Add no_dvc as __call__ argument by @PythonFZ in #168
• Update pytest.yaml by @PythonFZ in #170
• Fix Import Error by @PythonFZ in #171
• Add tests by @PythonFZ in #173

Full Changelog: v0.2.0...v0.2.1