Add predetermined values when creating fabric and also setting of the cost via the product
ok
Adjust style of the line above the deposit dependent on if deposit exists
Change po to do revisions
Update pdf on acknowledgement update
Changes to supply cost by changing purchase order item cost:

The api now allows the user to change the supply cost by changing the cost of the item. When an item has a 'unit_cost' key,
the amount is compared to the supply cost for that supplier. If the two values differ, then the supply.cost is change to the new item 'unit_cost'.
A supply log is also created to keep track of price change
Added supplier testing for the log when changing item cost
Remove excess debug logging
Adjust test to use deepcopy instead of copy
Merging
ok
Merge branch 'po' into test
Use the item's cost in calculating totals not the supply cost. Apply supply cost to item cost if item does not yet have a cost
Allowing changing prices when creating a purchase order
Allow getting supply logs with new api point
On supply create and update, if the price changes a log is created for 'Price Change'