* Support binary response body
Fixes#98
* Address PR comments
- Expose data constructors for Body and use them for construction and
pattern matching instead of various helpers
- Add an example and integration test for binary response
- Adjust the middleware example to be a bit nicer
- Upgrade all dependencies
- Use Effect instead of Eff
- Use Foreign.Object instead of StrMap
- Use Effect.Ref instead of Control.Monad.ST
- Drop SecureServerM, it's the same as ServerM now
