Github user Leemoonsoo commented on the issue:
https://github.com/apache/zeppelin/pull/2081
Test passed https://travis-ci.org/Leemoonsoo/zeppelin/builds/206156551
PR build status is yellow, because ASF Jenkins is unusually busy today.
Considering Jenkins job queue length, it'll take a day to build status
become green.
So without waiting Jenkins, i'll merge this PR to master and branch-0.7 as
a hotfix.
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