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/database/drivers/sqlite/sqlite_utility.php b/system/database/drivers/sqlite/sqlite_utility.php
index d1e1fe0..ab58f8f 100644
--- a/system/database/drivers/sqlite/sqlite_utility.php
+++ b/system/database/drivers/sqlite/sqlite_utility.php
@@ -124,7 +124,7 @@
 	 */

 	function _drop_database($name)

 	{

-		if ( ! @file_exists($this->db->database) OR ! @unlink($this->db->database))

+		if (! @file_exists($this->db->database) OR ! @unlink($this->db->database))

 		{

 			if ($this->db->db_debug)

 			{