Merge pull request #3769 from ftwbzhao/develop

[ci skip] Support for status codes 100, 101, 402 in set_status_header()
diff --git a/system/core/Common.php b/system/core/Common.php
index a96828e..a81e455 100644
--- a/system/core/Common.php
+++ b/system/core/Common.php
@@ -506,6 +506,9 @@
 		{
 			is_int($code) OR $code = (int) $code;
 			$stati = array(
+				100	=> 'Continue',
+				101	=> 'Switching Protocols',
+
 				200	=> 'OK',
 				201	=> 'Created',
 				202	=> 'Accepted',
@@ -524,6 +527,7 @@
 
 				400	=> 'Bad Request',
 				401	=> 'Unauthorized',
+				402	=> 'Payment Required',
 				403	=> 'Forbidden',
 				404	=> 'Not Found',
 				405	=> 'Method Not Allowed',