Releasing E Cell4

GitHub

1. Update ecell4_base version in https://github.com/ecell/ecell4_base/blob/master/setup.py
2. New release https://github.com/ecell/ecell4_base/releases
3. Write release note based on pull request

PyPI

1. Update cmake and gsl versions in https://github.com/ecell/manylinux-dockerimage/blob/master/Dockerfile with the latest conda-forge
2. Update boost version in https://github.com/ecell/ecell4_base/blob/master/.circleci/config.yml with the latest conda-forge
3. Check pip install THE_CIRCLECI_ARTIFACT_PYTHONWHEEL in Google Colab
4. twine upload the manylinux wheel

conda-forge

1. Update https://github.com/ecell/ecell4_base-feedstock/blob/master/recipe/meta.yaml
2. Send pull request to https://github.com/conda-forge/ecell4_base-feedstock/blob/master/recipe/meta.yaml