[wwwdocs] 4.3 libstdc++ entry

[Benjamin Kosnik <bkoz at redhat dot com>]

Here's a start for the gcc-4.3 libstdc++ entry. In addition, I added the 
include work to C++0x features, per Doug's very reasonable request.

best,
benjamin

Index: gcc-4.3/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.3/changes.html,v
retrieving revision 1.42
diff -c -p -r1.42 changes.html
*** gcc-4.3/changes.html	28 Mar 2007 14:44:53 -0000	1.42
--- gcc-4.3/changes.html	2 Apr 2007 16:31:00 -0000
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*** 163,170 ****
    has been added. This support can be enabled with the
    <code>-std=c++0x</code> or <code>-std=gnu++0x</code> compiler
    options; the former disables GNU extensions. The following C++0x
!   features are enabled by this
!   experimental mode:
    <ul>
      <li><a
    href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1720.html";>Static
--- 163,169 ----
    has been added. This support can be enabled with the
    <code>-std=c++0x</code> or <code>-std=gnu++0x</code> compiler
    options; the former disables GNU extensions. The following C++0x
!   features are enabled by this experimental mode:
    <ul>
      <li><a
    href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1720.html";>Static
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*** 177,182 ****
--- 176,186 ----
      <li><a
      href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2152.pdf";>Variadic
      templates</a> (only enabled by <code>-std=gnu++0x</code>)</li>
+     <li> Headers <code>array, random, regex, tuple, type_traits,
+     unordered_map,</code> and <code> unordered_set </code>. Plus,
+     headers for C compatibility: <code> ccomplex, cfenv,
+     cinttypes, cstdbool, cstdint, </code> and <code>
+     ctgmath</code>. </li>
    </ul>
    </li>
  
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*** 197,202 ****
--- 201,222 ----
  
    </ul>
  
+   <h4>Runtime Library (libstdc++)</h4>
+   <ul>
+     <li> Support for TR1 mathematical special functions and regular
+     expressions. The implementation status for TR1 can be tracked in
+     <a href="http://gcc.gnu.org/onlinedocs/libstdc++/ext/tr1.html";>
+     tr1.html </a> </li>
+     <li> Default <code>what</code> implementations give more
+     elaborate exception strings for <code>bad_cast, bad_typeid,
+     bad_exception, </code> and <code>bad_alloc</code>.</a> </li>
+     <li> Header dependencies have been streamlined, reducing
+     unnecessary includes and pre-processed bloat. </li>
+     <li> Variadic template implementations of <code>tuple</code>, and
+     parts of <code>&lt;functional&gt;</code>.  </li>
+   </ul>
+ 
+ 
  <h3>Fortran</h3>
    <ul>