If anyone want to try out RC1 of the UR with pio 0.11.0 get the `develop` branch of the UR here: https://github.com/actionml/universal-recommender
pull the repo then `git checkout develop` before you build it with pio I defaults to Spark 1.6, ES 1.7 and Scala 2.10, a UR v0.6.1 will have new build.sbt to support other configs. It does not support ES 5 but there is a PR that is nearly complete so expect that to be incorporated soon.