Added hash only mode for compairing files. Fixed verbose logging.#13

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skykingjwc wants to merge 2 commits intoprojectkudu:masterfrom

skykingjwc:master

Commits on Aug 19, 2016

Made logger work with verbose option, added hash only mode for comparing
skykingjwc
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Commits on Nov 10, 2016

Turned off no op logging when verbose logging is off
skykingjwc
committed