Initial commit of adding histogram functionality to the DoubleRDDFunctions.
Add tests for the Java implementation.
CR feedback
Remove extranious type definitions from inside of tests
Remove extranious type declerations
Remove explicit boxing
Add spaces
Fix the test
Improve docs for shuffle instrumentation
Emit warning message if job contains task with serialized size > 100KB
Emit warning message if job contains task with serialized size > 100KB
Now warn once for each stage rather than each job
Now warn once for each stage rather than each job
Log size of violating task as well as maximum recommended size
Addressed Matei's comments (check to make sure job and stage still exist, and eliminate the setter for serializedSize)
Simplified syntax to check if job and stage exist
Merge branch 'master' of https://github.com/henrydavidge/incubator-spark