port: Added conditional include of endian.h supporting both BSD and Linux.
cosmetics: Invisible aesthetics, or the Emperor's New Clothes.

Wikipedia.org: "The Emperor's New Clothes" (Danish: Kejserens nye
Klæder) is a short tale by Hans Christian Andersen about two weavers
who promise an Emperor a new suit of clothes that is invisible to
those unfit for their positions, stupid, or incompetent.
port: Added variation of bswap64 for linux+gcc.