Add method chaining support to Calendar & Pagination libs
diff --git a/system/libraries/Pagination.php b/system/libraries/Pagination.php
index c6ffd03..f67cb47 100644
--- a/system/libraries/Pagination.php
+++ b/system/libraries/Pagination.php
@@ -314,7 +314,7 @@
 	 * Initialize Preferences
 	 *
 	 * @param	array	$params	Initialization parameters
-	 * @return	void
+	 * @return	CI_Pagination
 	 */
 	public function initialize($params = array())
 	{
@@ -342,6 +342,8 @@
 				}
 			}
 		}
+
+		return $this;
 	}
 
 	// --------------------------------------------------------------------