zeppelin git commit: ZEPPELIN-2108. Livy interpreter job cancellation throws NPE

Repository: zeppelin Updated Branches: refs/heads/master d55058b05 -> eb88b0b9e ZEPPELIN-2108. Livy interpreter job cancellation throws NPE ### What is this PR for? It happens in some corner cases where output is null when statement is cancelled. ### What type of PR is it? [Bug Fix] ###

zeppelin git commit: ZEPPELIN-2079. Upgrade livy to 0.3 in livy interpreter

Repository: zeppelin Updated Branches: refs/heads/master bc8e190f9 -> d55058b05 ZEPPELIN-2079. Upgrade livy to 0.3 in livy interpreter ### What is this PR for? Upgrade livy to 0.3. * Add new tests for livy 0.3 * Add 2 livy build in travis. (livy 0.2 + spark 1.6.3 and livy 0.3 + spark 2.1.0,

zeppelin git commit: [ZEPPELIN-2049 : z0.7.1] Note name is gone when switch to personal mode

Repository: zeppelin Updated Branches: refs/heads/master ddce5fe0b -> bc8e190f9 [ZEPPELIN-2049 : z0.7.1] Note name is gone when switch to personal mode ### What is this PR for? Note name is gone when switch to personal mode There was a part of the note name that was missing processing. So, I

zeppelin git commit: [ZEPPELIN-2123] [DOC] Link contribution guide

Repository: zeppelin Updated Branches: refs/heads/master 09b75c86c -> ddce5fe0b [ZEPPELIN-2123] [DOC] Link contribution guide ### What is this PR for? This is minor update that add link to contribution guide ### What type of PR is it? Documentation ### Todos * [x] - add link to contribution