Creates task start events

Made RegressionModel serializable and added unit tests to make sure predict methods would work.

Add a public method getCachedRdds to SparkContext

Creates Executors tab for Jobs UI

This is used to find methods in the Scala API that
need to be ported to the Java API.  To use it:

  ./run spark.tools.JavaAPICompletenessChecker
Conflicts:
	project/SparkBuild.scala
	run
	run2.cmd

Fix bug: DoubleRDDFunctions.sampleStdev() computed non-sample stdev()

Update JavaDoubleRDD to add new methods and docs.

Fixes SPARK-825.

Regression: default webui-port can't be set via command line "--webui-port" anymore

Move ML lib data generator files to util/

Do not copy local jars given to SparkContext in yarn mode

Do not copy local jars given to SparkContext in yarn mode since the Context is not running on local. This bug causes failure when jars can not be found. Example codes (such as spark.examples.SparkPi) can not work without this fix under yarn mode.

Updates to LogisticRegression

[BUGFIX]  Fix for sbt/sbt script SPARK_HOME setting

fix a bug in build process that pulls in two versions of ASM.