Improve importer packaging by just expecting a tarball with third party libs and no longer hack around with rpm2cpio. It is now also possible to generate a "light" importer package without third party libs by not providing that tarball.

<?xml version="1.0" encoding="UTF-8" ?>
<datacage>
    <user>SA</user>
    <password/>
    <driver>org.h2.Driver</driver>
    <url>jdbc:h2:${artifacts.config.dir}/../h2/datacage</url>
</datacage>