Merge remote-tracking branch 'apache/master' into filestream-fix

bin/compute-classpath.sh

core/src/main/scala/org/apache/spark/Accumulators.scala

core/src/main/scala/org/apache/spark/Aggregator.scala

core/src/main/scala/org/apache/spark/FutureAction.scala

...c/main/scala/org/apache/spark/InterruptibleIterator.scala

core/src/main/scala/org/apache/spark/Logging.scala

...src/main/scala/org/apache/spark/broadcast/Broadcast.scala

...n/scala/org/apache/spark/broadcast/BroadcastFactory.scala

...main/scala/org/apache/spark/broadcast/HttpBroadcast.scala

...n/scala/org/apache/spark/broadcast/TorrentBroadcast.scala

core/src/main/scala/org/apache/spark/deploy/Client.scala

...n/scala/org/apache/spark/deploy/worker/CommandUtils.scala

core/src/main/scala/org/apache/spark/executor/Executor.scala

...rc/main/scala/org/apache/spark/executor/TaskMetrics.scala

core/src/main/scala/org/apache/spark/package.scala

core/src/main/scala/org/apache/spark/rdd/CoGroupedRDD.scala

core/src/main/scala/org/apache/spark/rdd/HadoopRDD.scala

...rc/main/scala/org/apache/spark/rdd/PairRDDFunctions.scala

core/src/main/scala/org/apache/spark/rdd/PipedRDD.scala

core/src/main/scala/org/apache/spark/rdd/RDD.scala