offer paging interface when WQL has limit

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Explicit limit in WQL doesn't show page interface: http://sandbox.wagn.org/wagn/a_few_user

...but implicit limit does: http://sandbox.wagn.org/wagn/testing_item_view

Counter-example does page by sevens:

Intended behavior when limit is specified was not to page, but to show only that many results.

+discussed in support tickets