Update release notes.
Update release notes.

aglne/lenskit,kluver/lenskit,chrysalag/lenskit,tajinder-txstate/lenskit,vijayvani/Lenskit,kluver/lenskit,blankazucenalg/lenskit,linjunleo/lenskit,vaibhav345/lenskit,tajinder-txstate/lenskit,kluver/lenskit,binweiwu/lenskit,tajinder-txstate/lenskit,amaliujia/lenskit,vaibhav345/lenskit,martinlaz/lenskit,kluver/lenskit,blankazucenalg/lenskit,kluver/lenskit,amaliujia/lenskit,vaibhav345/lenskit,vaibhav345/lenskit,linjunleo/lenskit,vijayvani/Lenskit,tajinder-txstate/lenskit,binweiwu/lenskit,chrysalag/lenskit,aglne/lenskit,martinlaz/lenskit