Refactored a whole lot to push all DStreams into the spark.streaming.dstream package.

core/src/main/scala/spark/rdd/ShuffledRDD.scala

streaming/src/main/scala/spark/streaming/DStream.scala

streaming/src/main/scala/spark/streaming/DStreamGraph.scala

.../src/main/scala/spark/streaming/NetworkInputTracker.scala

...src/main/scala/spark/streaming/PairDStreamFunctions.scala

streaming/src/main/scala/spark/streaming/Scheduler.scala

...ing/src/main/scala/spark/streaming/StreamingContext.scala

streaming/src/main/scala/spark/streaming/Time.scala

...main/scala/spark/streaming/dstream/CoGroupedDStream.scala

.../scala/spark/streaming/dstream/ConstantInputDStream.scala

.../src/main/scala/spark/streaming/dstream/DataHandler.scala

...main/scala/spark/streaming/dstream/FileInputDStream.scala

.../main/scala/spark/streaming/dstream/FilteredDStream.scala

.../scala/spark/streaming/dstream/FlatMapValuedDStream.scala

...ain/scala/spark/streaming/dstream/FlatMappedDStream.scala

...ain/scala/spark/streaming/dstream/FlumeInputDStream.scala

...c/main/scala/spark/streaming/dstream/ForEachDStream.scala

...c/main/scala/spark/streaming/dstream/GlommedDStream.scala

...src/main/scala/spark/streaming/dstream/InputDStream.scala

...ain/scala/spark/streaming/dstream/KafkaInputDStream.scala