Merge branch 'apache-master' into transform

.../main/scala/org/apache/spark/api/java/JavaDoubleRDD.scala

...rc/main/scala/org/apache/spark/api/java/JavaPairRDD.scala

core/src/main/scala/org/apache/spark/api/java/JavaRDD.scala

core/src/main/scala/org/apache/spark/rdd/RDD.scala

core/src/test/scala/org/apache/spark/JavaAPISuite.java

core/src/test/scala/org/apache/spark/rdd/RDDSuite.scala

docs/streaming-programming-guide.md

project/SparkBuild.scala

streaming/pom.xml

...g/src/main/scala/org/apache/spark/streaming/DStream.scala

...ala/org/apache/spark/streaming/api/java/JavaDStream.scala

...org/apache/spark/streaming/api/java/JavaPairDStream.scala

...rc/test/java/org/apache/spark/streaming/JavaAPISuite.java

.../test/java/org/apache/spark/streaming/JavaTestUtils.scala

...ala/org/apache/spark/streaming/BasicOperationsSuite.scala

...st/scala/org/apache/spark/streaming/CheckpointSuite.scala

...test/scala/org/apache/spark/streaming/TestSuiteBase.scala