Release v0.19.0

[andymeneely]

Be sure to remember to do the following for releases.

• CHANGELOG is written for all new changes
• README is updated
• Samples are updated
• Are all the dependencies up to date?
• Check sample_regression_spec.rb regression tests are all enabled (i.e. overwrite_sample is commented out)
• Bump version.rb
• Bump docs/conf.py versions
• Do a full rake locally
• rake sanity, and check visually
• GitHub Actions is passing on dev branch
• Merge master branch
• Merge release branch
• Push master and release branches
• Create GitHub release tag
• gem push pkg/squib-x.y.z.gem
• Github milestone closed
• Activate version on squib.readthedocs.org (Versions)
• Set default version on squib.readthedocs.org (Advanced Settings)
• Bump version.rb to the next alpha
• Publish on BoardGameGeek thread
• Anything else to add to this checklist?

Docker

• Check Dockerfile for updates
• docker build .
• docker tag XYZ andymeneely/squib:latest
• docker tag XYZ andymeneely/squib:version-0.XYZ.0
• docker push andymeneely/squib:latest
• docker push andymeneely/squib:version-0.XYZ.0
• Check Docker build on Dockerhub: https://hub.docker.com/repository/docker/andymeneely/squib
• Check Docker docker pull: docker pull andymeneely/squib:latest
• Check Docker build locally in samples:

• Delete samples/_output/basic_*.png
• docker run --rm -v c:\code\squib\samples:/usr/src/app -w /usr/src/app andymeneely/squib:latest ruby basic.rb
• Check that the files were made

• Anything else to add to this checklist?