[Distutils] End of Travis-CI.org

Reminder: Travis-CI.org will be shut down on December 31, 2020: https://mailchi.mp/3d439eeb1098/travis-ciorg-is-moving-to-travis-cicom?e=%5B... If you still have packages that use Travis-CI.org (and I think some packaging projects do), now is the time to migrate them to Travis-CI.com. Migration instructions here: https://docs.travis-ci.com/user/migrate/open-source-repository-migration "We encourage you to migrate your existing repositories that are currently on travis-ci.org over to travis-ci.com as soon as possible, enabling you to identify any additional changes required to your code or configuration well in advance of the December 31st deadline." -- Sumana Harihareswara Changeset Consulting https://changeset.nyc