Release notes for LensKit 2.0.1

The Git changelog and the list of closed tickets and pull requests provide more information on what has happened, including bugs that have been fixed.

• Revised fancy archetype with cleaner layout and better comments.

• Fixed data download error in fancy archetype (#issue(349)).

• Fixed output of lenskit-eval --version (#issue(345)).

• Annotated SimpleRatingPredictor’s primary scorer with @PrimaryScorer. This should have been done in LensKit 2.0.