more Green Dragon OS X buildbot/testbot tweaks

Hi all,

I don’t have this perfectly configured yet. It is happily running builds and running test suites. However, while it reports test failures just fine, it doesn’t fail the build on a test failure. I’m tracking down why now. I have just adjusted something so that we get an email on test failures. (We had three sho up on OS X yesterday that are getting logged at but are not actually failing the build).

I have the OS X testbot fail nag emails going out properly now.