Fixing for LocalScheduler with test, that much works ..
removing non-pertinent comment
Re-working in terms of changes to TaskSetManager. Verified with Standalone and Local mode.
style
Merge branch 'master' into SPARK-826

Conflicts:
	core/src/main/scala/spark/scheduler/local/LocalScheduler.scala
Leaking spark context in the test
mixing in SharedSparkContext for the kryo-collect test
reverting changes to SparkBuild.scala
initial externalization of ParallelCollectionRDD's split
Merge branch 'SPARK-826' into SPARK-835

Conflicts:
	core/src/main/scala/spark/scheduler/cluster/ClusterTaskSetManager.scala
	core/src/main/scala/spark/scheduler/local/LocalTaskSetManager.scala
	core/src/test/scala/spark/KryoSerializerSuite.scala