#2306 (Nov 18, 2020, 5:55:07 PM)

1. migp with choice variables (commit: ac1db46) (details / githubweb)
2. tested and working (commit: 747b2ef) (details / githubweb)
3. add sorting...reduces binary vars but doesn't seem to improve time (commit: feb5564) (details / githubweb)
4. add test and use warnings to discuss migp results (commit: f66b759) (details / githubweb)
5. fix warnings (commit: 8899d3b) (details / githubweb)
6. lint (commit: 8ee38ca) (details / githubweb)

GitHub pull request #1527 of commit 8ee38ca1b798c9a44e6b483325c55554a8a99914, no merge conflicts.