Anigam fixbugs#47

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abhinigam wants to merge 3 commits intomasterfrom

Commits on Dec 12, 2013

update norbert future to fix NoNodeAvailableException
abhinigam
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Commits on Jun 11, 2014

Enhance selective retry to retry failed requests due to exceptions should they occur before the initial timeout
abhinigam
committed

Commits on Jun 12, 2014

Using option instead of null
abhinigam
committed