Enable maven release for multi-module projects

Would be very nice to be able to maven release a multi-module project.
Impossible right now cause all jarResources are looked up in the maven repositories not in target repositories.

In a multi-module project, some jarResources (same group id) may have been built in the same compilation process, in my case release process.
In that process, during the prepare phase, artifacts are compiled in target directories but not moved to the local repository.
So jnlp-download-servlet can't find them.