Quickstart hibernate-on-top-of-teiid usability issues

There are two usability issues:

1. we're reusing Portfolio vdb. The thing is, that if user performed also dynamicvdb-dataroles quickstart, the Portfolio vdb will have limitations on data access. So it is crucial, for the functionality of hibernate qs for user to provide correct credentials. It has to be credentials allowing read access for the example query in the end.
2. mvn package is enough, no need for mvn install when building WAR file