minor doc updates to inform user they need the current less.js 1.2.1 or they...

minor doc updates to inform user they need the current less.js 1.2.1 or they will be hit by this bug #952

docs/less.html

@@ -431,7 +431,7 @@
     <p>Use this option to make full use of Bootstrap’s Less variables, mixins, and nesting in CSS via javascript in your browser.</p>
 <pre class="prettyprint linenums">
 &lt;link rel="stylesheet/less" href="less/bootstrap.less" media="all" /&gt;
-&lt;script src="js/less-1.1.3.min.js"&gt;&lt;/script&gt;</pre>
+&lt;script src="js/less-1.2.1.min.js"&gt;&lt;/script&gt;</pre>
 <p>Not feeling the .js solution? <a href="http://incident57.com/less" target="_blank">Try the Less Mac app</a> or <a href="http://lesscss.org/#-client-side-usage" target="_blank">use Node.js</a> to compile when you deploy your code.</p>
 
     <h2>What’s included</h2>

docs/upgrading.html

@@ -135,6 +135,12 @@
       <li>Pills now have dropdown menu support (they share the same markup and styles as tabs)</li>
     </ul>
   </li>
+  <li>Update Less.js
+    <ul>
+      <li>Make sure to use to the current release of <a href="http://lesscss.org/">less.js</a> </li>
+    </ul>
+  </li>
+      
 </ul>
 <!--
   <li>