Adding initial payload validation support for hawk
Adding tests for auth payload validation
Adding more tests and handling multiple auth strategies
Merging upstream
Merging upstream
Merging and refactoring auth payload validation
Refactoring auth payload validation
Merge branch 'develop' of git://github.com/walmartlabs/hapi into feature/hawkpayload

Merging Upstream
Simplifying the auth payload validation
Rename strategy to _strategy
Merge branch 'develop' of git://github.com/walmartlabs/hapi into feature/hawkpayload

Merging upstream
Refactoring auth payload validation
Merge branch 'develop' of git://github.com/walmartlabs/hapi into feature/hawkpayload

Merging upstream
Merge branch 'develop' of git://github.com/walmartlabs/hapi into feature/hawkpayload

Merging upstream
Refactoring hawk payload validation slightly
Refactoring auth payload to take a callback
Merge pull request #438 from wpreul/feature/hawkpayload

Adding support for payload authentication validation