Github user akopich commented on the pull request:
https://github.com/apache/spark/pull/1269#issuecomment-49735276
Thank you for your recommendations.
Sorry for code style -- i believed it's ok since sbt/sbt scalastyle finds
no issue. Hope, it's ok now.
I've removed "created by ..." comments generated by intellij, organized
imports, added docs for every public class/trait and method, fixed indentation,
hidden all the classes/traits that end-user does not need.
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