Commits
- https://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html
- https://github.com/erlang/otp/wiki/writing-good-commit-messages
- http://who-t.blogspot.com.au/2009/12/on-commit-messages.html
- https://gist.github.com/robertpainsi/b632364184e70900af4ab688decf6f53
- https://wiki.openstack.org/wiki/GitCommitMessages#Information_in_commit_messages