Item2257: remove unnecessary fields from System.BulkResetPassword

When the number of registered users gets large (>1000), BulkResetPassword is slow to view. This frustrates users and can lead to script failures if the site is busy and/or the Apache Timeout is relatively low.

Removing the fields $createdate and $date from the form speeds up the display time 3 fold. Those fields are unnecessary to the function of the form.

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Confirmed. Even with these changes, BulkResetPassword won't load on Foswiki.org.

1.2 addresses this by "paging" the search, default 50 users at a time.

I'm checking in this change, and also making the pagesize configurable on that page.

-- GeorgeClark - 07 Jan 2015