Change Details

Update supertuxkart to the latest stable release 1.0. Changelog: - Online multiplayer Full release blog can be found [here](http://blog.supertuxkart.net/2019/04/supertuxkart-10-release.html).

Update supertuxkart to the latest stable release 1.0. Depends on D6189. Changelog: - Online multiplayer Full release blog can be found [here](http://blog.supertuxkart.net/2019/04/supertuxkart-10-release.html).

Update supertuxkart to the latest stable release 1.0. Depends on D6189. Changelog: - Online multiplayer Full release blog can be found [here](http://blog.supertuxkart.net/2019/04/supertuxkart-10-release.html).