[wwwdocs] Update links to C++ ABI (was: at exit alternative for AIX)

[Gerald Pfeifer <gerald at pfeifer dot com>]

On Tue, 7 Aug 2012, Ian Lance Taylor wrote:
> The official link at http://codesourcery.com/cxx-abi/ (note trailing
> slash) still works.

It used to be http://sourcery.mentor.com/public/cxx-abi/ as of lately,
and now redirects to http://mentorembedded.github.com/cxx-abi/ .

I went ahead and updated all our references per the patch below.

Jonathan, libstdc++/doc/xml/manual/abi.xml also has three references
to the old address.

Gerald

Index: faq.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/faq.html,v
retrieving revision 1.215
diff -u -3 -p -r1.215 faq.html
--- faq.html	20 Feb 2012 22:41:41 -0000	1.215
+++ faq.html	26 Aug 2012 10:37:21 -0000
@@ -433,7 +433,7 @@ linkage the same name is a violation of 
 
 <p>For more details about the way that GCC implements these and other
 C++ features, please read the <a
-href="http://sourcery.mentor.com/public/cxx-abi/";>C++ ABI specification</a>.
+href="http://mentorembedded.github.com/cxx-abi/";>C++ ABI specification</a>.
 Note the <code>std::type_info</code> objects which <i>must</i> be
 resolved all begin with "_ZTS". Refer to <code>ld</code>'s
 documentation for a description of the "<code>-E</code>" &amp;
Index: readings.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/readings.html,v
retrieving revision 1.219
diff -u -3 -p -r1.219 readings.html
--- readings.html	23 Feb 2012 13:24:36 -0000	1.219
+++ readings.html	26 Aug 2012 10:37:21 -0000
@@ -37,7 +37,7 @@
   by Joachim Nadler and Tim Josling
   &lt;<a href="mailto:tej@melbpc.org.au";>tej@melbpc.org.au</a>&gt;.</li>
 
-  <li><a href="http://sourcery.mentor.com/public/cxx-abi/";>
+  <li><a href="http://mentorembedded.github.com/cxx-abi/";>
   The V3 multi-vendor standard C++ ABI</a> is used in GCC releases 3.0 and
   above.</li>
 
Index: gcc-3.2/c++-abi.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-3.2/c++-abi.html,v
retrieving revision 1.6
diff -u -3 -p -r1.6 c++-abi.html
--- gcc-3.2/c++-abi.html	20 Feb 2012 22:51:27 -0000	1.6
+++ gcc-3.2/c++-abi.html	26 Aug 2012 10:37:21 -0000
@@ -10,7 +10,7 @@
     The main point of the GCC 3.2 release is to have a relatively
     stable and common C++ ABI for GNU/Linux and BSD usage, following
     the documentation at
-    <a href="http://sourcery.mentor.com/public/cxx-abi/";>http://sourcery.mentor.com/public/cxx-abi/</a>.
+    <a href="http://mentorembedded.github.com/cxx-abi/";>http://sourcery.mentor.com/public/cxx-abi/</a>.
    
     Unfortunately this means that GCC 3.2 is incompatible with GCC 3.0
     and GCC 3.1 releases.</p>
Index: gcc-4.0/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.0/changes.html,v
retrieving revision 1.60
diff -u -3 -p -r1.60 changes.html
--- gcc-4.0/changes.html	20 Feb 2012 22:51:27 -0000	1.60
+++ gcc-4.0/changes.html	26 Aug 2012 10:37:22 -0000
@@ -182,7 +182,7 @@
         <a href="#visibility"><code>-fvisibility</code> option</a>.</li>
 
     <li>The compiler now uses the library interface specified by the <a
-        href="http://sourcery.mentor.com/public/cxx-abi/";>C++ ABI</a> for
+        href="http://mentorembedded.github.com/cxx-abi/";>C++ ABI</a> for
         thread-safe initialization of function-scope static variables.
         Most users should leave this alone, but embedded programmers may
         want to disable this by specifying