Shutting down workflow gracefully.#30

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gs-rchejerla wants to merge 2 commits intonirmata:masterfrom

gs-rchejerla:master

Commits on Jul 29, 2016

Shutting down workflow gracefully.
gs-rchejerla
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Commits on Jul 30, 2016

Adding call to Thread.currentThread().interrupt() in closeGraceFully
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