Token Authorization

[dharnitski]

Hi Kevin,

Please check my implementation for token based authorization.

This pull request includes:

• Token security
• xUnit upgrade to 2.0
• fix for HttpHandler Authorization. Service executed the request even if Authorization failed (with returning 401).
• Unit tests for new feature and Authorization in Nancy middleware

I checked Unit tests, Smoke tests and Code analysis - everything looks good.
Hope that we can see this enchantment in Nugget soon.

Thanks
Dmitry

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This change is

[kevinobee]

Thanks so much for the work Dmitry. Apologies for taking so long to respond to you, the day job has been keeping me busy.

I will look through your commits and try to get this in as soon as possible, pending feedback.

Thanks again for the great work

[dharnitski]

Hi Kevin,

Please let me know if there is anything I can help you with to merge this request.

Thanks
Dmitry