! Eliminating a logged error from stupid bots. This is mainly Wedge.org-oriented, but it's pretty much free. (Load.php)
- An old unused variable. (ManagePermissions.php)
* Removed some pre-2004 updateSettingsFile code (I'm sure the "server oddities" mentioned were fixed in the meantime!), and replaced it with file_put_contents and a rename. This is cleaner, shorter, and should work better against low disk space. (Subs-Admin.php)

@ Note: updateSettingsFile now returns false if an error occurred. Instead of nothing special.
! This one's messed up... It looks like doing updateSettingsFile and subsequently redirecting to the same page will not always load the correct settings file. Perhaps it's due to my Windows setup, I don't know. But I'd rather do an ugly, visible refresh than give the user a finger and force them to reload the page manually. (Subs.php, Upgrade.php)
* Maintenance. (ManageMaintenance.php) (Had to be.)