I know that Apache Spark uses Jenkins with a plugin in Github to allow them to manually invoke Jenkins testing against PRs.
Do we want something similar (or do we have it already) for Toree? Currently, we use Travis CI, which is free for open source projects. I don't know off the top of my head if Travis allows you to manually invoke builds/tests againsts PRs. Is there something specific that Apache requires us to use? Does anyone have a preference in how we handle PRs? Also, I was reading over (https://www.apache.org/dev/release.html). There are multiple release types including nightly builds. While we don't advertise nightly builds on the main site, it would be useful to have nightly builds for those interested in trying bug fixes, getting new features, etc. This is especially important considering we currently ask all users to build from source; so, moving to a release model changes our flow a little bit. Is there available Apache tooling for nightly builds? Do we need to set something up ourselves?
