SPINS filenaming update
New reports: Item Order History, Item Weekly Sales Last Quarter.
The latter is the week-by-week data generated in order to run the
weighted margin tool. Data might as well be accessible. The order
history requires entries in PurchaseOrders (duh) although you don't
necessarily need to order by way. I'm backporting information into
the table using the UnfiDownload plugin.

Both reports are linked via the existing RecentSales report to
minimize additional interface clutter.