[ZEPPELIN-808] Changed Permissions on Notebooks do not provide helpful error to user#1408

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kavinkumarks wants to merge 3 commits intoapache:masterfrom

kavinkumarks:zeppelin-808-handle-notebook-permission-error

Commits on Sep 25, 2016

Show information to the user when there are errors with related to
Kavin
committed
Handle FileSystemException on running paragraph and show the relevant
Kavin
committed
Exit the run paragraph execution when there are errors with the notebook
Kavin
committed