zeppelin git commit: [MINOR][Code Refactoring] Configuration name change for keytab and principal used for FileSystemNotebookRepo

Repository: zeppelin Updated Branches: refs/heads/master fc9d542b7 -> a424f5c65 [MINOR][Code Refactoring] Configuration name change for keytab and principal used for FileSystemNotebookRepo ### What is this PR for? Trivial change for configuration name change. ### What type of PR is it?

zeppelin git commit: [ZEPPELIN-2924] Fix broken javascript source map

Repository: zeppelin Updated Branches: refs/heads/master e0fafac75 -> fc9d542b7 [ZEPPELIN-2924] Fix broken javascript source map ### What is this PR for? Fixed broken javascript source map. The coverage loader should be used only for test env. **that's really annoying because we can't set

zeppelin git commit: [ZEPPELIN-2761] - Neo4j Interpreter

Repository: zeppelin Updated Branches: refs/heads/master 0c64d9ca6 -> e0fafac75 [ZEPPELIN-2761] - Neo4j Interpreter ### What is this PR for? This contribution would to introduce Neo4j Cypher intepreter and at the same time provides base APIs that enable other graph databases (or graph