Merge pull request #26 from hueniverse/develop

Migrate errors to use Boom
Merge pull request #27 from hueniverse/develop

Migrate to cryptiles
Merge pull request #28 from hueniverse/develop

Comment separator selection
Fixes #34
Rearrange and clarify intro
Clarify Replay Protection

Addresses #31
Merge pull request #35 from mnot/patch-1

Rearrange and clarify intro
Merge pull request #36 from mnot/patch-2

Clarify Replay Protection
Update README.md
Updated README with more details on payload validation
Merge pull request #38 from mcdee/master

Additional Payload Validation Information in README
Merge pull request #39 from hueniverse/master

Readme