Added get_dir_file_info(), get_file_info(), and get_mime_by_extension() to the File Helper.

Changed ( ! condition) into (! condition) within the code
diff --git a/system/helpers/cookie_helper.php b/system/helpers/cookie_helper.php
index 102057f..75c769e 100644
--- a/system/helpers/cookie_helper.php
+++ b/system/helpers/cookie_helper.php
@@ -73,7 +73,7 @@
 			$path = $CI->config->item('cookie_path');

 		}

 		

-		if ( ! is_numeric($expire))

+		if (! is_numeric($expire))

 		{

 			$expire = time() - 86500;

 		}