Migration for stock units
Stock unit creation files
Preliminary support for stock units
Relations to tie an order to its PO
Return 0 on no recvd line items
Showing line item id as a convenience to me
Canceled order inventory fulfillment bug

When receiving inventory it is possible for canceled orders to prevent
inventory units from being fulfilled if the line item quantity exceeds
the amount of inventory that is being received.  By not using slice
we’re slowing down this routine but making sure everything that needs
to be filled will get filled.
Refactoring unit reservation out of InventoryUnit
Can update non-isbn SKU numbers
Debug code removal
Profit estimate on order admin
Stock Unit integration
Display change for price estimates
No longer returning double array
Fixed on front end to send true/false
Indexes for stock_units
Merge branch 'fifo'

Conflicts:
	app/models/spree/purchase_order_line_item.rb