Fix the --name option for Spark on Yarn
Use CoarseGrainedExecutorBackend in spark-class
Merge pull request #264 from shivaram/spark-class-fix

Use CoarseGrainedExecutorBackend in spark-class
Merge pull request #257 from tgravescs/sparkYarnFixName

Fix the --name option for Spark on Yarn

Looks like the --name option accidentally got broken in one of the merges.  The Client hangs if the --name option is used right now.