Added Form Validation Library and updated docs
diff --git a/user_guide/libraries/user_agent.html b/user_guide/libraries/user_agent.html
index d4a5504..0a01260 100644
--- a/user_guide/libraries/user_agent.html
+++ b/user_guide/libraries/user_agent.html
@@ -28,7 +28,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>CodeIgniter User Guide Version 1.6.3</h1></td>

+<td><h1>CodeIgniter User Guide Version 1.7</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

@@ -192,7 +192,7 @@
 &nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;

 <a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;

 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;

-Next Topic:&nbsp;&nbsp;<a href="validation.html">Validation Class</a>

+Next Topic:&nbsp;&nbsp;<a href="xmlrpc.html">XML-RPC Class</a>

 </p>

 <p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006-2008 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">Ellislab, Inc.</a></p>

 </div>