Updating code examples in user guide to use CI_Controller instead of Controller
diff --git a/user_guide/libraries/file_uploading.html b/user_guide/libraries/file_uploading.html
index 254b266..ea0e2a2 100644
--- a/user_guide/libraries/file_uploading.html
+++ b/user_guide/libraries/file_uploading.html
@@ -144,11 +144,11 @@
 
 <textarea class="textarea" style="width:100%" cols="50" rows="43">&lt;?php
 
-class Upload extends Controller {
+class Upload extends CI_Controller {
 
 	function Upload()
 	{
-		parent::Controller();
+		parent::CI_Controller();
 		$this->load->helper(array('form', 'url'));
 	}
 
diff --git a/user_guide/libraries/form_validation.html b/user_guide/libraries/form_validation.html
index 18f391a..eae2036 100644
--- a/user_guide/libraries/form_validation.html
+++ b/user_guide/libraries/form_validation.html
@@ -221,7 +221,7 @@
 
 <textarea class="textarea" style="width:100%" cols="50" rows="21">&lt;?php
 
-class Form extends Controller {
+class Form extends CI_Controller {
 
 	function index()
 	{
@@ -312,7 +312,7 @@
 
 <textarea class="textarea" style="width:100%" cols="50" rows="28">&lt;?php
 
-class Form extends Controller {
+class Form extends CI_Controller {
 
 	function index()
 	{
@@ -514,7 +514,7 @@
 
 <textarea class="textarea" style="width:100%" cols="50" rows="44">&lt;?php
 
-class Form extends Controller {
+class Form extends CI_Controller {
 
 	function index()
 	{
@@ -805,7 +805,7 @@
 
 <code>
 &lt;?php<br /><br />
-class <kbd>Member</kbd> extends Controller {<br />
+class <kbd>Member</kbd> extends CI_Controller {<br />
 <br />
 &nbsp;&nbsp;&nbsp;function <kbd>signup</kbd>()<br />
 &nbsp;&nbsp;&nbsp;{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
diff --git a/user_guide/libraries/xmlrpc.html b/user_guide/libraries/xmlrpc.html
index 971ab02..87ca094 100644
--- a/user_guide/libraries/xmlrpc.html
+++ b/user_guide/libraries/xmlrpc.html
@@ -211,7 +211,7 @@
 <p>Using the above example, if the <var>new_post</var> method is requested, the server will expect a class
 to exist with this prototype:</p>
 
-<code>class <kbd>My_blog</kbd> extends Controller {<br />
+<code>class <kbd>My_blog</kbd> extends CI_Controller {<br />
 <br />
 &nbsp;&nbsp;&nbsp;&nbsp;function <kbd>new_post</kbd>(<var>$request</var>)<br />
 &nbsp;&nbsp;&nbsp;&nbsp;{<br />
@@ -230,7 +230,7 @@
 function might look:</p>
 
 
-<code>class <kbd>My_blog</kbd> extends Controller {<br />
+<code>class <kbd>My_blog</kbd> extends CI_Controller {<br />
 <br />
 &nbsp;&nbsp;&nbsp;&nbsp;function <kbd>getUserInfo</kbd>(<var>$request</var>)<br />
 &nbsp;&nbsp;&nbsp;&nbsp;{<br />
@@ -323,7 +323,7 @@
 
 <textarea class="textarea" style="width:100%" cols="50" rows="32">&lt;?php
 
-class Xmlrpc_client extends Controller {
+class Xmlrpc_client extends CI_Controller {
 
 	function index()
 	{
@@ -361,7 +361,7 @@
 
 <textarea class="textarea" style="width:100%" cols="50" rows="30">&lt;?php
 
-class Xmlrpc_server extends Controller {
+class Xmlrpc_server extends CI_Controller {
 
 	function index()
 	{