zeppelin git commit: ZEPPELIN-3821. Yarn app is not killed after flink interpreter is restarted

Repository: zeppelin Updated Branches: refs/heads/master 733bed591 -> a2473daf8 ZEPPELIN-3821. Yarn app is not killed after flink interpreter is restarted ### What is this PR for? Trvial PR to shutdown cluster when flink shell is closed. ### What type of PR is it? [Hot Fix ] ### Todos * [ ]

zeppelin git commit: ZEPPELIN-3818. Unit test failed: ZeppelinSparkClusterTest.testAngularObjects

Repository: zeppelin Updated Branches: refs/heads/master b183c7e06 -> 733bed591 ZEPPELIN-3818. Unit test failed: ZeppelinSparkClusterTest.testAngularObjects ### What is this PR for? This is to fix the unit test failure of ZeppelinSparkClusterTest.testAngularObjects. It is due to the parsing l