We used to have a whole, internal automated build system that tested Review Board, Djblets, Django Evolution, etc. against a variety of Python and Django versions. This was responsible for automated tests, nightly builds, website doc generation, and so on.
We’re getting this going again, but this time we’re using Travis-CI. To start off, we’re testing this with Djblets. The testing is minimal, but at least it’s there, and we’ll expand it as we go. Here it is.