Update chrome driver#171

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tiandx wants to merge 2 commits intostirno:devfrom

tiandx:updatechromedriver

Commits on Oct 31, 2016

Update chrome driver to 2.25, since previous version can't support Chrome 54+
tiandx
committed

Commits on Nov 2, 2016

Update version number to align with our NuGet.
tiandx
committed