*Finally* figured out the dang incompatible warnings problem: Scala
version was 2.10.2, scalatest was downloading a 2.10.0 version. (Also,
turns out Scalate is only 2.10.0 compatible. Ergh.) Cool to know: 2.10
and 2.10.2 aren't binary compatible. Whee.

Anyways I fixed it.