Put some sanity into this logging mess.

Makes logrus much more useful in case the end of the world occurs.

![screen shot 2014-03-12 at 14 03 28](https://f.cloud.github.com/assets/1189716/2401008/a7abdc8a-aa10-11e3-86cf-3c346ef9d1d0.png)

r: @Sirupsen