Initial vldb benchmark commmit. Added slaves file.
Beginning of new pipeline, not compiled yet.
Fixed compilation issues.
Added new conf
Added debugging. Issue with stringify.
Stringify still not working. FML.
Readadded prepost
updated slaves and conf.
Fixed pipeline. Now seems to work well.
added more debug logging.
more debugging. Seems like we have empty partitions.
Fixed partitioning issues.
Merge remote-tracking branch 'dcrankshaw-incubator-spark/gx-vldb-bench' into vldb

Conflicts:
	project/SparkBuild.scala