Fix/update some gnus manual links to external resources

* doc/misc/gnus-faq.texi (FAQ 5-8, FAQ 6-3): Remove defunct URLs.
(FAQ 7-1): Update URL.

* doc/misc/gnus.texi (Top): Restrict "Other related manuals" to info output.
(Foreign Groups): Use @indicateurl for examples.
(Direct Functions): Remove defunct URL.
(RSS): Update URL.

doc/misc/ChangeLog

@@ -4,6 +4,14 @@
 
 	* dbus.texi (Introspection): Update URL to a less defunct one.
 
+	* gnus.texi (Top): Restrict "Other related manuals" to info output.
+	(Foreign Groups): Use @indicateurl for examples.
+	(Direct Functions): Remove defunct URL.
+	(RSS): Update URL.
+
+	* gnus-faq.texi (FAQ 5-8, FAQ 6-3): Remove defunct URLs.
+	(FAQ 7-1): Update URL.
+
 	* pgg.texi (Top, Overview): Add note about obsolescence.
 
 	* bovine.texi (top):

doc/misc/gnus-faq.texi

@@ -1541,8 +1541,9 @@ cat file.face | sed 's/\\/\\\\/g;s/\"/\\\"/g;' > file.face.quoted
 
 If you can't use compface, there's an online X-face converter at
 @uref{http://www.dairiki.org/xface/}.
-If you use MS Windows, you could also use the WinFace program from
-@uref{http://www.xs4all.nl/~walterln/winface/}.
+If you use MS Windows, you could also use the WinFace program,
+which used to be available from
+@indicateurl{http://www.xs4all.nl/~walterln/winface/}.
 Now you only have to tell Gnus to include the X-face in your postings by saying
 
 @example
@@ -1835,15 +1836,20 @@ too.
 Of course you can also use grep to search through your
 local mail, but this is both slow for big archives and
 inconvenient since you are not displaying the found mail
-in Gnus. Here comes nnir into action. Nnir is a front end
+in Gnus.  Here nnir comes into action.  Nnir is a front end
 to search engines like swish-e or swish++ and
-others. You index your mail with one of those search
+others.  You index your mail with one of those search
 engines and with the help of nnir you can search through
 the indexed mail and generate a temporary group with all
-messages which met your search criteria. If this sound
-cool to you get nnir.el from
+messages which met your search criteria.  If this sounds
+cool to you, get nnir.el from
+@c FIXME Isn't this file in Gnus?
+@ignore
+@c Dead link 2013/7.
 @uref{ftp://ls6-ftp.cs.uni-dortmund.de/pub/src/emacs/}
-or @uref{ftp://ftp.is.informatik.uni-duisburg.de/pub/src/emacs/}.
+or
+@end ignore
+@uref{ftp://ftp.is.informatik.uni-duisburg.de/pub/src/emacs/}.
 Instructions on how to use it are at the top of the file.
 
 @node FAQ 6-4
@@ -1966,7 +1972,7 @@ the easiest solution is a small nntp server like
 @uref{http://infa.abo.fi/~patrik/sn/, sn},
 of course you can also install a full featured news
 server like
-@uref{http://www.isc.org/products/INN/, inn}.
+@uref{http://www.isc.org/software/inn/, inn}.
 Then you want to fetch your Mail, popular choices
 are @uref{http://www.catb.org/~esr/fetchmail/, fetchmail}
 and @uref{http://pyropus.ca/software/getmail/, getmail}.

doc/misc/gnus.texi

@@ -420,6 +420,9 @@ This manual corresponds to Gnus v5.13
 * Index::                    Variable, function and concept index.
 * Key Index::                Key Index.
 
+@c Doesn't work right in html.
+@c FIXME Do this in a more standard way.
+@ifinfo
 Other related manuals
 
 * Message:(message).         Composing messages.
@@ -427,6 +430,7 @@ Other related manuals
 * Sieve:(sieve).             Managing Sieve scripts in Emacs.
 * EasyPG:(epa).              @acronym{PGP/MIME} with Gnus.
 * SASL:(sasl).               @acronym{SASL} authentication in Emacs.
+@end ifinfo
 
 @detailmenu
  --- The Detailed Node Listing ---
@@ -2708,11 +2712,11 @@ the article range.
 This command is similar to @code{gnus-read-ephemeral-gmane-group}, but
 the group name and the article number and range are constructed from a
 given @acronym{URL}.  Supported @acronym{URL} formats include:
-@url{http://thread.gmane.org/gmane.foo.bar/12300/focus=12399},
-@url{http://thread.gmane.org/gmane.foo.bar/12345/},
-@url{http://article.gmane.org/gmane.foo.bar/12345/},
-@url{http://permalink.gmane.org/gmane.foo.bar/12345/}, and
-@url{http://news.gmane.org/group/gmane.foo.bar/thread=12345}.
+@indicateurl{http://thread.gmane.org/gmane.foo.bar/12300/focus=12399},
+@indicateurl{http://thread.gmane.org/gmane.foo.bar/12345/},
+@indicateurl{http://article.gmane.org/gmane.foo.bar/12345/},
+@indicateurl{http://permalink.gmane.org/gmane.foo.bar/12345/}, and
+@indicateurl{http://news.gmane.org/group/gmane.foo.bar/thread=12345}.
 
 @item gnus-read-ephemeral-emacs-bug-group
 @findex gnus-read-ephemeral-emacs-bug-group
@@ -13805,9 +13809,12 @@ installed.  You then define a server as follows:
 @findex nntp-open-ssl-stream
 @item nntp-open-ssl-stream
 Opens a connection to a server over a @dfn{secure} channel.  To use
-this you must have @uref{http://www.openssl.org, OpenSSL} or
-@uref{ftp://ftp.psy.uq.oz.au/pub/Crypto/SSL, SSLeay} installed.  You
-then define a server as follows:
+this you must have @uref{http://www.openssl.org, OpenSSL}
+@ignore
+@c Defunct URL, ancient package, so don't mention it.
+or @uref{ftp://ftp.psy.uq.oz.au/pub/Crypto/SSL, SSLeay}
+@end ignore
+installed.  You then define a server as follows:
 
 @lisp
 ;; @r{"snews" is port 563 and is predefined in our @file{/etc/services}}
@@ -16919,7 +16926,7 @@ Some web sites have an RDF Site Summary (@acronym{RSS}).
 @acronym{RSS} is a format for summarizing headlines from news related
 sites (such as BBC or CNN).  But basically anything list-like can be
 presented as an @acronym{RSS} feed: weblogs, changelogs or recent
-changes to a wiki (e.g., @url{http://cliki.net/recent-changes.rdf}).
+changes to a wiki (e.g., @url{http://cliki.net/site/recent-changes}).
 
 @acronym{RSS} has a quite regular and nice interface, and it's
 possible to get the information Gnus needs to keep groups updated.