Made Environment Support optional. Comment out or delete the constant to stop environment checks.
diff --git a/system/helpers/text_helper.php b/system/helpers/text_helper.php
index 6644089..cca0939 100644
--- a/system/helpers/text_helper.php
+++ b/system/helpers/text_helper.php
@@ -366,7 +366,7 @@
 {
 	function convert_accented_characters($str)
 	{
-		if (is_file(APPPATH.'config/'.ENVIRONMENT.'/foreign_chars'.EXT))
+		if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/foreign_chars'.EXT))
 		{
 			include(APPPATH.'config/'.ENVIRONMENT.'/foreign_chars'.EXT);
 		}