tardis-sn/tardis — pull request #160 by wkerzendorf (2014-07-01 21:27:29+00:00)
Title: how to get constant density? broken?

What has become of:

```
density:
type : uniform
value: 1.e-14 g/cm3
```

we want that to work e.g. for the comparison with syn++. But that type of density doesn't work now. @wkerzendorf @mklauser I assume this got lost (or the way we specify it changed?) as a result of the config validator changes?