Deprecate _local_ named web socket connections.

We have persistently struggled to federate local named web socket connections.

Thus, every Named Web Socket connection is now a Network Named Web Socket
connection. This change greatly simplifies the concept and the proxy code
to the point that we can work around a precise type of Named Web Socket
without muddying the waters over exactly the scoping of different Named
Web Socket types.
Merge pull request #4 from namedwebsockets/au_point

Deprecate _local_ named web socket connection types. See https://github.com/namedwebsockets/namedwebsockets/pull/4.