Fixing error in php5.3 when calling behavior methods that had more th…

…an 6 parameters.

cake/libs/model/behavior.php

@@ -167,7 +167,7 @@ function dispatchMethod(&$model, $method, $params = array()) {
 			case 5:
 				return $this->{$method}($model, $params[0], $params[1], $params[2], $params[3], $params[4]);
 			default:
-				array_unshift($params, $model);
+				array_unshift($params, &$model);
 				return call_user_func_array(array(&$this, $method), $params);
 			break;
 		}