* httphi: RouterConfig refactor to enable DefaultRouterConfig
* RequestHeader not case sensitive anymore
* httphi: use DefaultRouterConfig in examples
* httphi: remove gated stage complexity
Misusing Stage methods by calling them once header has been written is totally harmless as far as I can tell. We simplify the codebase on this occasion by removing the headerWritten check for all stage methods
* httphi: improve APIs
* httphi: remove status
Pat Whittingslow