Update CommonSettings to reflect changes in UpWiz

Change 4a530c4b7341b9bb8409b194469f594f24fb5548 made some non-backward
compatible changes to UploadWizard including its settings for
automatically adding a category (UploadWizard.config.php l. 81).

Consequently, [[Category:Uploaded with UploadWizard]] was not added to new
uploads at Wikimedia Commons (it is used for statistical purposes;
whether it is useful and not just wasting resources by creating a really
big category -- someone else has to decide this).

Bug: 51879
Change-Id: I4ddada23af422e229b385482a710f886dad092ca