[wwwdocs] Adjust to the new location of the C++ ABI

[Gerald Pfeifer <gerald at pfeifer dot com>]

For gcc-4.0/ and faq.html I did adjust the link, for gcc-3.2/ I
figured we can as well avoid it.

Applied.

(Jonathan, I'm going to take care of the libstdc++/doc links as
well in case you wonder.)

Gerald

Index: faq.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/faq.html,v
retrieving revision 1.224
diff -u -r1.224 faq.html
--- faq.html	3 Feb 2017 07:43:57 -0000	1.224
+++ faq.html	29 Mar 2017 09:10:23 -0000
@@ -428,7 +428,7 @@
 
 <p>For more details about the way that GCC implements these and other
 C++ features, please read the <a
-href="http://mentorembedded.github.io/cxx-abi/";>C++ ABI specification</a>.
+href="https://itanium-cxx-abi.github.io/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: gcc-3.2/c++-abi.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-3.2/c++-abi.html,v
retrieving revision 1.9
retrieving revision 1.11
diff -u -r1.9 -r1.11
--- gcc-3.2/c++-abi.html	1 Feb 2017 20:18:54 -0000	1.9
+++ gcc-3.2/c++-abi.html	30 Mar 2017 20:36:53 -0000	1.11
@@ -9,10 +9,9 @@
     <p>
     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://mentorembedded.github.io/cxx-abi/";>http://mentorembedded.github.io/cxx-abi/</a>.
+    the Itanium C++ ABI.</p>
    
-    Unfortunately this means that GCC 3.2 is incompatible with GCC 3.0
+    <p>Unfortunately this means that GCC 3.2 is incompatible with GCC 3.0
     and GCC 3.1 releases.</p>
 
     <p>

Index: gcc-4.0/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.0/changes.html,v
retrieving revision 1.69
diff -u -r1.69 changes.html
--- gcc-4.0/changes.html	19 Mar 2017 19:07:26 -0000	1.69
+++ gcc-4.0/changes.html	29 Mar 2017 09:10:24 -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://mentorembedded.github.io/cxx-abi/";>C++ ABI</a> for
+        href="https://itanium-cxx-abi.github.io/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