Data Type Cleanup

In the data structures, I had kinda been storing things randomly. In
preparing to address more of the issues, it was clear this needed (and
still does) cleaned up. Other than a few mods along the way, the goal
has been to minimize conversions while processing "real" in/out network
traffic, and do as much as possible one-time (such as the peer list),
or in formatting for output -- which is really mostly debugging and
will go away.