Add Japanese language resource files.

application/language/ja/pagination.php

@@ -28,4 +28,4 @@ return array(
 	'previous' => '« 前',
 	'next'     => '次 »',
 
-);
+);

application/language/ja/validation.php

@@ -139,4 +139,4 @@ return array(
 
 	'attributes' => array(),
 
-);
+);