Serialize and restore spark.cleaner.ttl to savepoint
Renamed StandaloneX to CoarseGrainedX.

The previous names were confusing because the components weren't just
used in Standalone mode -- in fact, the scheduler used for Standalone
mode is called SparkDeploySchedulerBackend. So, the previous names
were misleading.
Added back fully qualified class name
Track and report write throughput for shuffle tasks.
Adding option to force sync to the filesystem
Trying new approach with writes
Perf benchmark
Minor cleanup
Making the timing block more narrow for the sync
Add new SBT target for dependency assembly
Add a comment and exclude tools
Upgrade Kafka 0.7.2 to Kafka 0.8.0-beta1 for Spark Streaming
SPARK-627 - reading --config argument
Merge branch 'master' of https://github.com/apache/incubator-spark

Updating local branch
Merge branch 'master' of https://github.com/apache/incubator-spark into sbt-assembly-deps
Unified daemon thread pools
Merge remote branch 'upstream/master' into rename
Fixed build error after merging in master
Merge pull request #61 from kayousterhout/daemon_thread

Unified daemon thread pools

As requested by @mateiz in an earlier pull request, this refactors various daemon thread pools to use a set of methods in utils.scala, and also changes the thread-pool-creation methods in utils.scala to use named thread pools for improved debugging.
Merge pull request #34 from kayousterhout/rename

Renamed StandaloneX to CoarseGrainedX.

(as suggested by @rxin here https://github.com/apache/incubator-spark/pull/14)

The previous names were confusing because the components weren't just
used in Standalone mode.  The scheduler used for Standalone
mode is called SparkDeploySchedulerBackend, so referring to the base class
as StandaloneSchedulerBackend was misleading.