Very minor change in a testcase

Fixed bug in BlockManager and added a testcase

For some reason, ScalaDoc complained about no such constructor for
StreamingContext; it doesn't seem like an actual Scala error but it
prevented sbt publish and from working because docs weren't built.

Minor changes based on feedback

Also warns if spark.cleaner.ttl is not set in the version where you pass
your own SparkContext.

Some changes to streaming failure docs.

TD gave me the go-ahead to just make these changes:
- Define stateful dstream
- Some minor wording fixes

Disable remote lifecycle logging from Akka.

This changes the default setting to `off` for remote lifecycle events. When this is on, it is very chatty at the INFO level. It also prints out several ERROR messages sometimes when sc.stop() is called.

instead of only once, in case the user changes it across Spark uses

Change defaultPartitioner to use upstream split size.

Moving akka dependency resolver to shared.

Conflicts:
	core/src/main/scala/spark/RDD.scala
	core/src/main/scala/spark/scheduler/cluster/StandaloneSchedulerBackend.scala
	core/src/test/scala/spark/ShuffleSuite.scala

Final set of Spark Streaming changes

Changed class paths and dependencies based on Matei's comments

Streaming bug fixes

Change numSplits to numPartitions in PySpark