* generic/udp_tcl.c: An extensive interface rewrite. We now have

	* generic/udp_tcl.c: An extensive interface rewrite. We now have
	just a udp command and the socket is controlled via the fconfigure
	command. This is now a much more similar to the tcl socket
	command. For backwards compatability, we define the old functions
	in terms of the new interface.
	      * * *    INTERFACE INCOMPATABILITY   * * *