When converting users, the date format is hard-coded in
the conv_users.php file. It would be nice to have a way
of using a specific date format without having to mess
around with in the PHP code.
E.g., I am in the process of test converting IB 1.3.1
to phpBB 2.0.21 and all my users got date format "d M Y
h:i a" which doesn't fit in well with my Norwegian
format "d. M Y H:i" so I had to...
