Fixes to work with new R MOJO
Fixes to work with new R MOJO

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