Improved compliance tests for OpenModelica and JModelica.org

I think with these commits, we can close issue #1.
There is one flaw: I included a hard coded path to the openmodelica library.  This will not work on a different setup than mine.  

The path has to point to MSL, this is the current implementation:
```
env['OPENMODELICALIBRARY'] = worDir + ':/usr/lib/omlibrary'
``` 

How can we solve this?