Fix response status on /add_order
order[line_items] no longer have a nested variant
Make product object match the defaults in Wombat
bump endpoint_base
replace deprecated add_messages for add_object
use proper default order payload attributes
Update order sample for specs
Make pry available on specs
Get /add_order webhook to work with default order
Make order_update webhook work with default object
Update /get_inventory to comply with latest wombat