Bug Fixes and Minor Adjustments

• P10: Inventory form cleanup. Re-enabled adding and editing products.
• Fixed: P9: changing warehouse on PO/VI was updating dept on header but not on details.
• Fixed: P9 substitution in the quick build form doesn’t zero out old item qty when substituting.
• Fixed: P9 user could edit inventory warehouse quantities in inventory warehouse tab. (Those changes didn’t save. It was just a visual bug.)
• P10: Added rounding levels and sort orders to mileage rates in the mileage calculator. Also fixed so that mileage rates can be deleted from the setup form.