[MERGE] server protocol registry in bzrlib.transport.

[Ian Clatworthy]

Jelmer Vernooij wrote:
> An updated version of my "bzr serve --protocol=FOO" patch, but moving the
> registry to bzrlib.transport.

Thanks.

bb:tweak

>          if port is None:
> -            port = medium.BZR_DEFAULT_PORT
> +            port = None
>          else:

No need to reassign port here. :-) Try ...

  if port is not None:

instead.

>  """)
>  
>  
> +
>  class SmartTCPServer(object):
>      """Listens on a TCP socket and accepts connections from smart clients.

The extra blank line is unnecessary here.

Ian C.