Scala Koans

Since we have a few folks who are new to Scala, it seems like a great time to do a round-robin group learn! We'll walk through the lovingly prepared Scala Koans randoori style! I'll have a laptop hooked up to the projector and we'll take turns cajoling each other into making the tests pass, and after the half-way point, we can help any newcomers who'd like to work on the Koans alone get their machines set up to run some Scala!

Also, let's figure out ahead of time if we all want to pitch in for some grub so we can munch while we're not test-driving!