ISPN-5048 Clean up uberjars to remove javax.* classes and relocated imported classes which don't affect API

https://issues.jboss.org/browse/ISPN-5048
DEPENDENCIES.txt should be excluded as well (currently the one from infinispan-commons is included).
LICENSE.txt is not present at all

The correct DEPENDENCIES.txt and LICENSE.txt can be included using the maven-bundle-plugin by using an Include-Resource instruction similar to the one used for the blueprint.xml