added sales create form with nested items create form; added items_attributes to strong params whitelist; trivial change to item model validation to allow nested creation
javascript to allow dynamic generation of additional items in nested form
Merge pull request #18 from HydraJax/views/sales

Views/sales
fixed js in new sales_items form; added to "my_transactions" in dashboard - separated buyer/seller transaction; hid confirm/cancel buttons for reserved items on items show
Merge pull request #20 from radcliff/views/sales

Views/sales