You'll see that there are several pull requests that I haven't yet merged in:

Thanks so much for these contributions!

The reason why I haven't pulled them in is because there are failing tests associated with these pull request.

We are using the continuous integration system Travis CI for BigBang (thanks to the thoughtful contribution of Spiros Eliopoulos). This runs the automated test suite against the source code for any pull request and alerts us to anything that may be going wrong.

I'll be looking at these pull requests and seeing what's up with the failing tests.