Fixed typo in button state active default docs. Closes jquery-archive#2403. Thanks jasonrsavino!

Author: toddparker

docs/api/globalconfig.html

@@ -92,7 +92,7 @@ <h2>Configurable options</h2>
 	<dd>The class assigned to page currently in view, and during transitions</dd>
 
 
-	<dt><code>activeBtnClass</code> <em>string</em>, default: "ui-page-active"</dt> 
+	<dt><code>activeBtnClass</code> <em>string</em>, default: "ui-btn-active"</dt> 
 	<dd>The class used for "active" button state, from CSS framework.</dd>
 
 	<dt><code>ajaxEnabled</code> <em>boolean</em>, default: true</dt>