Spark Integration: Use project level spark version in example
Merge pull request #547 from caskdata/hotfix/spark-version

Spark Integration: Use project level spark version in example
change ui to work with updated endpoint (https://issues.cask.co/browse/CDAP-501)
Merge pull request #562 from caskdata/feature/service-specification-endpoint-change

change ui to work with updated endpoint (https://issues.cask.co/browse/C...
Spark Integration: Spark on streams

Spark Integration: reactored