* add Exchange.WriteBodyString
* Mux.MaxPathValues and other improvements
* Mux PathValue improvemnt and fixes
* MuxSlice more method muxing improvements
* diagram out interesting approach to form parsing for clanker
* refactor RequestParseForm and achieve greatness in API design
* explicit naming of headerCapacityKV value in kvBuffer.Reset
* fix Mux bug not matching paths correctly; httpraw HTTP V1 naming applied
* rename many examples,use httphi in examples,remove useless maxAwaitingConn field
* add ipv4.String
* add ipv4 UnspecifiedAddr and BroadcastAddr
* add ethernet.String
Pat Whittingslow