Vectis simulation - license.

You are hereby licensed to use this version of the Vectis simulation computer program (the “software”) for an unlimited period; make as many copies of this version of the software and documentation as you wish; give exact copies of the original version to anyone; and distribute this version of the software and documentation in its unmodified form via electronic means. There is no charge for any of the above. You are specifically prohibited from charging, or requesting donations, for any such copies, however made; from making alterations or changes to the software; and from distributing the software and/or documentation with other products (commercial or otherwise) without prior written permission from the author.