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Merge branch 'feature/examples' of https://github.com/wpreul/hapi-fork into feature/examples

Merging Origin
Adding auth example server
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Replacing ext.onUnknown with a notFound handler
Adding notFound documentation
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Adding server setting for notFound
Removing unknown extension from defaults
Small tweak
Removing server option for notFound
Merge pull request #417 from wpreul/feature/unknown

Adding notFound handler and server setting
Server notFound cleanup