Removed old v0 API. #591

docs/api.md

docs/api_reference.rst

docs/conf.py

docs/developers.md

docs/index.rst

docs/introduction.md

examples/api_use.py

examples/api_use_authenticated.py

examples/domain.py

examples/external_project_parallel_upload/example-1.tar.gz

examples/external_project_parallel_upload/example-2.tar.gz

examples/external_project_parallel_upload/example-3.tar.gz

examples/external_project_parallel_upload/upload.py

examples/external_project_upload/upload.py

examples/files.py

examples/parse.py

examples/search.py

examples/uploading/bulk_upload.py

nomad/app/flask/__init__.py

nomad/app/flask/api/__init__.py