Fixes executable entrypoint.

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extra : amend_source : b5dcb9d6fc36f55bae5a0ea93cb651203ca7dea2
Adds a simple release script.
Bumps to 0.2.0
Updates the README.md to be more informative.
Sets version to release.
Added tag v0.2.0 for changeset 449df3de6fa3