Added 404_override to Codeigniter file to catch the 404 if the controller is available but no method. Fixes #19
diff --git a/system/core/Router.php b/system/core/Router.php
index 7be508f..6893e6e 100644
--- a/system/core/Router.php
+++ b/system/core/Router.php
@@ -270,7 +270,7 @@
 
 		// If we've gotten this far it means that the URI does not correlate to a valid
 		// controller class.  We will now see if there is an override
-		if (!empty($this->routes['404_override']))
+		if ( ! empty($this->routes['404_override']))
 		{
 			$x = explode('/', $this->routes['404_override']);