attempt to generate rails log entries for caught exceptions
Pull shipment-cost-munger out into a separate object so that it can be used from writeback
Accept order shipping amounts written back from ROP
Discrepancy adjustments, etc
sanity check for intra-family sku conflict
tweaks to get discrepancy adjustments fully working
tweaks to get shipping amounts working
Discount adjustment needs to be negative
Fix logging. "logger" is inexplicably nil inside Spree controllers (rails version issue?)
Fix tracking
Document new hooks