I wonder if we ought to pick these up from `./build/deps/...`, rather than the maven repo? That's what I do exclusively in the IntellIJ project files. 

```
% ls build/deps/scaladoc/
scala-parser-combinators_2.11.0-M4-1.0-RC1.jar
scala-xml_2.11.0-M4-1.0-RC3.jar
```

If we required folks to install https://code.google.com/p/dcc-eclipse-plugin/, we could even avoid enumerating the JAR names (which is fragile because of the embeded version numbers).