Initial Implementation of HDFS based RDD
Close reader when done.
Minor fixes
Minor formatting changes
Put data back into BlockManager once retrieved from HDFS.
Make hadoopConf and storageLevel non-transient.
Overriding getPreferredLocs
HDFS Tests initial commit
HDFS Block RDD must create a new iterator to return to caller. Added unit tests for the RDD.
Don't extend BeforeAndAfter
Refactor tests for HDFS backed RDD
Broadcast the Hadoop configuration. Refactor the tests to use rdd.collect()
Update tests to test conditions where data is not read from HDFS at all
Removing extra line
Merge pull request #15 from harishreedharan/hdfsrdd

Initial implementation of HDFSBackedBlockRDD.