Merge branch 'master' of https://github.com/mesos/spark into WithThing

bagel/pom.xml

core/pom.xml

core/src/main/scala/spark/BlockStoreShuffleFetcher.scala

core/src/main/scala/spark/PairRDDFunctions.scala

core/src/main/scala/spark/RDD.scala

core/src/main/scala/spark/executor/TaskMetrics.scala

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

core/src/main/scala/spark/rdd/SubtractedRDD.scala

core/src/main/scala/spark/scheduler/SparkListener.scala

...src/main/scala/spark/scheduler/local/LocalScheduler.scala

core/src/main/scala/spark/serializer/Serializer.scala

core/src/main/scala/spark/storage/BlockFetchTracker.scala

core/src/main/scala/spark/storage/BlockManager.scala

.../main/scala/spark/storage/DelegateBlockFetchTracker.scala

core/src/main/scala/spark/util/NextIterator.scala

core/src/test/scala/spark/ShuffleSuite.scala

core/src/test/scala/spark/scheduler/SparkListenerSuite.scala

core/src/test/scala/spark/util/NextIteratorSuite.scala

docs/running-on-yarn.md

examples/pom.xml