Made Environment Support optional. Comment out or delete the constant to stop environment checks.
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index 5816a55..3cd2e4f 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -951,7 +951,7 @@
if (count($this->mimes) == 0)
{
- if (is_file(APPPATH.'config/'.ENVIRONMENT.'/mimes'.EXT))
+ if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/mimes'.EXT))
{
include(APPPATH.'config/'.ENVIRONMENT.'/mimes'.EXT);
}