Centralize plugin test configuration?

[janpio]

When looking through the core plugins' .travis.yml for #28 I noticed that they are all very similar, but not identical and have tiny differences. The addons.jwt.secure difference seems to be by design, for the rest, I am not too sure.

Would it maybe make sense to create an additional repository where we have a template .travis.yml (and other common files) and a script/tool to distribute that/those file(s) to all core plugin repositories?

[janpio]

https://github.com/apache/cordova-paramedic/blob/master/.travis.yml is now the central "template", but rollout still has to happen manually as some plugins do not support some platforms, some have an additional test directory where npm test should be run etc etc.