[COOK-1336] Make Transitive Flag Configurable

Previously all transitive dependencies where downloaded to the local
maven repository. The main Artefact was than copied to dest.

I changed the default behaviour to only download the main artifact. The
old behaviour can still be used with the attribute "transitive true".
Merge pull request #14 from martinei/feature/COOK-1336

[COOK-1336] Make Transitive Flag Configurable