apache/spark — pull request #3790 by liyezhang556520 (2014-12-24 09:05:31+00:00)
Title: [SPARK-4954][Core] add spark version infomation in log for standalone mode

The master and worker spark version may be not the same with Driver spark version. That is because spark Jar file might be replaced for new application without restarting the spark cluster. So there shall log out the spark-version in both Mater and Worker log.