License

[inati]

1. We need to change the License file slightly to remove reference to JEM
2. The README should be corrected. It currently says that the license is GPL.
3. Can we use a more easily understood license? The NIH / US Government license is confusing to most.

[inati]

We can use CC0 1.0 Universal public domain like:
https://github.com/WhiteHouse/source-code-policy/blob/gh-pages/LICENSE.md