Fixed description of smart_ptr library.

[SVN r12751]

libs/libraries.htm

@@ -146,8 +146,9 @@ out how to build object libraries, when needed.</p>
 
     <li><a href="regex/index.htm">regex</a> - Regular expression
         library, from John Maddock.</li>
-    <li><a href="smart_ptr/index.htm">smart_ptr</a> - Four smart
-        pointer classes, from Greg Colvin and Beman Dawes.</li>
+    <li><a href="smart_ptr/index.htm">smart_ptr</a> - Five smart
+        pointer class templates, from Greg Colvin, Beman Dawes,
+        Peter Dimov, and Darin Adler.</li>
     <li><a href="static_assert/static_assert.htm">static_assert</a>
         - Static assertions (compile time assertions), from John
         Maddock.</li>
@@ -357,8 +358,9 @@ out how to build object libraries, when needed.</p>
 <ul>
     <li><a href="pool/doc/index.html">pool</a> - Memory pool management, from
       Steve Cleary.</li>
-    <li><a href="smart_ptr/index.htm">smart_ptr</a> - Four smart
-        pointer classes, from Greg Colvin and Beman Dawes.</li>
+    <li><a href="smart_ptr/index.htm">smart_ptr</a> - Five smart
+        pointer class templates, from Greg Colvin, Beman Dawes,
+        Peter Dimov, and Darin Adler.</li>
   <li><a href="utility/utility.htm">utility</a>  - <tt>checked_delete</tt> and <tt>checked_array_delete</tt>
     function templates, from Beman Dawes and others.</li>
 </ul>