Another call for comments on removal of Scala 2.10 support, if you haven't already. See
https://github.com/apache/spark/pull/17150 http://issues.apache.org/jira/browse/SPARK-19810 I've heard several votes in support and no specific objections at this point, but wanted to make another call to check for any doubts before I go ahead for Spark 2.2.
