- Removed ability to upload a png version of the flags. I can't really justify extra file_exists tests just for something nobody will ever bother with. Also finished converting all flag links to use gif. (ManageLanguages.php, Subs-Cache.php, TEMPLATES: Boards, ManageBoards, ManagePlugins, MessageIndex)
- Forgot flags in the installer. (install.php)

! Fixed missing argument when triggering an SQL error in the installer. (install.php)