Traits section on About page

- Modifies index.html to link to a Trait section at bottom of page.
- Section provides direct link to test cases to serve as documentation until
  traits are added to the manual.

index.html

@@ -27,11 +27,7 @@
     </a>
   </li>
   <li><a href="#static">Static and constant members</a></li>
-  <li>
+  <li><a href="#traits">Traits as mixins</a></li>
-    Traits as mixins
-    <a href="http://git.savannah.gnu.org/cgit/easejs.git/?h=traits"
-      class="subtle">(under development)</a>
-  </li>
 </ul>
 </div>
 
@@ -229,6 +225,25 @@
 <a href="#" class="top">&uarr;</a>
 
 
+<h3 id="traits" class="bigemph">
+  Traits As Mixins
+  <span class="anchor"><a href="#traits">&para;</a></span>
+</h3>
+<p>
+  Trait support was introduced in celebration of becoming a GNU
+  project.  It is currently under development and has not yet been
+  finalized, but has been included in each GNU ease.js release since v0.2.0,
+  and is stable.
+</p>
+<p>
+  Documentation will be available once some final details are
+  finalized.  Until that time,
+  the <a href="http://git.savannah.gnu.org/cgit/easejs.git/tree/test/Trait">test
+  cases provide extensive examples and rationale</a>.
+</p>
+<a href="#" class="top">&uarr;</a>
+
+
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