Fixed an issue with "/banlist" and vehicle saving

Fixed an issue with the new ownership transferral. If you entered a
vehicle that wasn't owned by anyone, both vehicles would be assigned the
same username and thus both saved (one would overwrite the other
resulting in only the highest ID vehicle being loaded)

Also fixed a really strange issue with the "/banlist" SQL statement. The
"COLLATE NOCASE" only works BEFORE the "ORDER BY" clause... UNLESS the
"LIMIT" label is used in which case the "COLLATE NOCASE" has to be
placed AFTER the "LIMIT" label. No idea who's bright fucking idea that
was...