[ZEPPELIN-1142] Zeppelin allows two users to simultaneously edit the notebook permissions#1393

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kavinkumarks wants to merge 3 commits intoapache:masterfrom

kavinkumarks:zeppelin-1142-simultaneous-note-permission-error

Commits on Sep 7, 2016

Store owner information on creating a note and added integration test
Kavin
committed
Removed the duplicate instance of notebook variable and reused the
Kavin
committed
Ensure that the authentication instance is created only when the input
Kavin
committed