Manually apply PR #1594 (fixing phpdoc page-level generation/warnings)
Also partially fixes issue #1295, fixes inconsistencies in some page-level docblocks and adds include checks in language files.
diff --git a/system/core/Utf8.php b/system/core/Utf8.php
index efe3c10..5bc2dd5 100644
--- a/system/core/Utf8.php
+++ b/system/core/Utf8.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -24,6 +24,7 @@
* @since Version 2.0
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* Utf8 Class