Please add these license files to the jars to make them redistributable

Jeff, I think you may have missed the point of my previous pull request.  This change does not address Rhino.  This change addresses the fact that the wsc jar itself does not contain the industry-standard files that explain how its contents are licensed.  That makes it impossible to redistribute as built, from a legal point of view.  Adding these files is in line with standard practices in the open-source community, and makes it much easier for companies developing with the wsc to redistribute the jar.  Please reconsider adding these files to the next release.

-aB