Merge branch 'master' into fixdeathpactexception

core/pom.xml

core/src/main/scala/spark/SparkContext.scala

core/src/main/scala/spark/api/python/PythonRDD.scala

core/src/main/scala/spark/deploy/LocalSparkCluster.scala

core/src/main/scala/spark/deploy/client/Client.scala

core/src/main/scala/spark/deploy/master/Master.scala

core/src/main/scala/spark/deploy/worker/ExecutorRunner.scala

core/src/main/scala/spark/deploy/worker/Worker.scala

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

...main/scala/spark/scheduler/cluster/SchedulerBackend.scala

...spark/scheduler/cluster/SparkDeploySchedulerBackend.scala

...a/spark/scheduler/mesos/CoarseMesosSchedulerBackend.scala

...n/scala/spark/scheduler/mesos/MesosSchedulerBackend.scala

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

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

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

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

core/src/main/twirl/spark/storage/rdd.scala.html

core/src/main/twirl/spark/storage/rdd_table.scala.html

core/src/test/scala/spark/DriverSuite.scala