Merge pull request #882 from mateiz/package-rename

...rces/org/apache/spark/ui/static/spark-logo-77x50px-hd.png

.../main/resources/org/apache/spark/ui/static/spark_logo.png

core/src/main/resources/org/apache/spark/ui/static/webui.css

core/src/main/scala/org/apache/spark/Accumulators.scala

core/src/main/scala/org/apache/spark/Aggregator.scala

...ain/scala/org/apache/spark/BlockStoreShuffleFetcher.scala

core/src/main/scala/org/apache/spark/CacheManager.scala

core/src/main/scala/org/apache/spark/Dependency.scala

...rc/main/scala/org/apache/spark/FetchFailedException.scala

core/src/main/scala/org/apache/spark/HttpFileServer.scala

core/src/main/scala/org/apache/spark/HttpServer.scala

core/src/main/scala/org/apache/spark/Logging.scala

core/src/main/scala/org/apache/spark/MapOutputTracker.scala

core/src/main/scala/org/apache/spark/Partition.scala

core/src/main/scala/org/apache/spark/Partitioner.scala

...rc/main/scala/org/apache/spark/SerializableWritable.scala

core/src/main/scala/org/apache/spark/ShuffleFetcher.scala

core/src/main/scala/org/apache/spark/SparkContext.scala

core/src/main/scala/org/apache/spark/SparkEnv.scala

core/src/main/scala/org/apache/spark/SparkException.scala