Pull over some new test programs from the soup-refactoring branch,

	Pull over some new test programs from the soup-refactoring branch,
	along with the SoupUri changes they depend on.

	* tests/simple-httpd.c: A really simple HTTP server, to test the
	server code.

	* tests/simple-proxy.c: An even simpler HTTP proxy

	* tests/get.c: Add "-r" flag to recursively get files (thereby
	testing multiple-connections-at-once code). Also good for setting
	up a tree to use with simple-httpd.

	* tests/timeserver.c (main): Fix a bug. (s/ipv6/ipv4/ in the
	normal case)

	* tests/uri-parsing.c: Regression test for the new soup-uri.c

	* libsoup/soup-uri.c: Rewrite/update to conform to RFC 2396, and
	pull in some optimizations from camel-url. Also, make SoupProtocol
	a GQuark so we can still compare them with ==, but we can also
	recognize any protocol.
	(soup_uri_new_with_base): New, to merge base and relative URIs
	(soup_uri_to_string): Update this. Change the "show_password" flag
	(which we always passed FALSE for) to "just_path", for places that
	want the path+query without the protocol, host, etc.

	* libsoup/soup-queue.c (soup_get_request_header): Just use
	soup_uri_to_string to generate the request URI.

	* libsoup/soup-auth.c (compute_response, digest_auth_func): Use
	"soup_uri_to_path (uri, TRUE)" rather than trying to reassemble
	the URI by hand badly.
	* libsoup/soup-server-auth.c (parse_digest): Likewise

	* libsoup/soup-socks.c (soup_connect_socks_proxy): Change a
	switch() to an series of if()s since SOUP_PROTOCOL_* aren't
	constants any more.

	* libsoup/soup-context.c (soup_context_uri_hash,
	soup_context_uri_equal): s/querystring/query/