#100 (Aug 15, 2019, 2:20:18 PM)

1. Both stages of futurize. (commit: d4b9660) (details / githubweb)
2. Require install of future. (commit: edb8e75) (details / githubweb)

GitHub pull request #176 of commit edb8e75af3c77a0895008751d8a438cb90ee28ae, no merge conflicts.