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disabled during debugging).

	connection is open before saving it.
	(url-http-handle-authentication): Use url-retrieve-internal
	instead of url-retrieve.
	(url-http-parse-headers): Adapt to new callback interface.
	(url-http): Handle non-blocking connections.
	(url-http-async-sentinel): Create.

	* url.el (url-retrieve): Update docstring for new callback interface.
	Remove all code.
	(url-retrieve-internal): Move code from url-retrieve here.

	* url-gw.el (url-open-stream): Use a non-blocking socket for
	`native' gateway method, if available.

(url-gateway-nslookup-host, url-open-telnet): Use with-current-buffer.

url-news.el (url-snews): Use nntp-open-tls-stream if
url-gateway-method is tls.
url-ldap.el (url-ldap-certificate-formatter): Use
tls-certificate-information if ssl.el is not available.
url-https.el (url-https-create-secure-wrapper): Use tls if ssl
is not available.
url-gw.el (url-open-stream): Support tls url-gateway-method.
(url-open-stream): Likewise.

Remove RCS keywords

2004-04-10  Miles Bader  <miles@gnu.org>

   RCS keyword removal (only non-comment changes are enumerated here):

   * lisp/emacs-lisp/bytecomp.el (byte-compile-version): Variable removed.
   (byte-compile-insert-header): Don't use `byte-compile-version'.
   * lisp/url/url-vars.el (url-version): Use the constant string "Emacs"
   instead of calculating something from the RCS `State' keyword
   [the latter is almost entirely useless anyway].
   * lisp/forms.el (forms-version): Variable removed.
   (forms-mode): Don't use `forms-version'.
   * lisp/recentf.el (recentf-version): Variable removed.
   * lisp/progmodes/delphi.el (delphi-version): Variable removed.
   * lisp/progmodes/ada-mode.el (ada-mode): RCS keyword removed from docstring.